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<TITLE>Form S-8</TITLE>
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<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>
<DIV style="font-family: 'Times New Roman',Times,serif; margin-left: .25in; width: 7.20in">

<DIV align="center" style="font-size: 10pt; margin-top: 10pt">As filed with the Securities and Exchange Commission on July&nbsp;30, 2010
</DIV>


<DIV align="right" style="font-size: 10pt; margin-top: 10pt">Registration No.&nbsp;333-
</DIV>


<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 1pt solid black; font-size: 1pt">&nbsp;</DIV>




<DIV align="center" style="font-size: 14pt; margin-top: 10pt"><B>UNITED STATES<BR>
SECURITIES AND EXCHANGE COMMISSION</B>
</DIV>

<DIV align="center" style="font-size: 12pt"><B>Washington, D.C. 20549</B>
</DIV>

<DIV align="center"><DIV style="font-size: 1pt; margin-top: 10pt; width: 26%; border-bottom: 1px solid #000000">&nbsp;</DIV></DIV>

<DIV align="center" style="font-size: 18pt; margin-top: 10pt"><B>Form&nbsp;S-8</B>
</DIV>


<DIV align="center" style="font-size: 12pt; margin-top: 10pt"><B>REGISTRATION STATEMENT UNDER<BR>
THE SECURITIES ACT OF 1933</B>
</DIV>

<DIV align="center"><DIV style="font-size: 1pt; margin-top: 10pt; width: 26%; border-bottom: 1px solid #000000">&nbsp;</DIV></DIV>

<DIV align="center" style="font-size: 24pt; margin-top: 10pt"><B>ADTRAN<FONT style="font-variant: SMALL-CAPS">, Inc.</FONT></B>
</DIV>

<DIV align="center" style="font-size: 10pt"><B>(Exact name of registrant as specified in its charter)</B></DIV>


<DIV align="center"><DIV style="font-size: 1pt; margin-top: 10pt; width: 26%; border-bottom: 1px solid #000000">&nbsp;</DIV></DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
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    <TD align="center" valign="top"><B>Delaware</B><BR>
(State or other jurisdiction of incorporation or <BR>
organization)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>63-0918200</B><BR>
(I.R.S. Employer Identification No.)</TD>
</TR>
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</DIV>

<DIV align="center"><DIV style="font-size: 1pt; margin-top: 10pt; width: 26%; border-bottom: 1px solid #000000">&nbsp;</DIV></DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
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    <TD width="47%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
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<TR valign="bottom">
    <TD align="center" valign="top"><B>901 Explorer Boulevard <BR>
Huntsville, Alabama</B><BR>
(Address of Principal Executive Offices)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="bottom"><B>35806-2807</B><BR>
(Zip Code)</TD>
</TR>
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</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 10pt"><B>ADTRAN, Inc. 2010 Directors Stock Plan</B><BR>
(Full title of the plan)</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 10pt"><B>James E. Matthews<BR>
Senior Vice President &#151; Finance,<BR>
Chief Financial Officer and Treasurer<BR>
ADTRAN, Inc.<BR>
901 Explorer Boulevard</B><BR>
Huntsville, Alabama 35806-2807<BR>
(Name and address of agent for service)</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 10pt"><B>(256)&nbsp;963-8000</B><BR>
(Telephone number, including area code, of agent for service)</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 10pt">Copies to:<BR>
<B>Thomas Wardell, Esq.<BR>
McKenna Long &#038; Aldridge LLP<BR>
303 Peachtree Street, NE<BR>
Suite&nbsp;5300<BR>
Atlanta, Georgia 30308-3201</B></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 10pt"><B>(404)&nbsp;527-4000</B></DIV>


<DIV align="justify" style="font-size: 10pt; margin-top: 10pt">Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a
non-accelerated filer, or a smaller reporting company. See the definitions of &#147;large accelerated
filer,&#148; &#147;accelerated filer&#148; and &#147;smaller reporting company&#148; in Rule&nbsp;12b-2 of the Exchange Act.
</DIV>
<DIV align="center">
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    <TD width="22%">&nbsp;</TD>
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    <TD align="left" valign="top"><FONT style="white-space: nowrap">Large accelerated filer <FONT face="Wingdings">&#254;</FONT></FONT>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><FONT style="white-space: nowrap">Accelerated filer <FONT face="Wingdings">&#111;</FONT></FONT>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><FONT style="white-space: nowrap">Non-accelerated filer <FONT face="Wingdings">&#111;</FONT></FONT>
<FONT style="white-space: nowrap">(Do not check if a smaller reporting company)</FONT>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><FONT style="white-space: nowrap">Smaller reporting company <FONT face="Wingdings">&#111;</FONT></FONT></TD>
</TR>
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</DIV>

<DIV align="center"><DIV style="font-size: 1pt; margin-top: 10pt; width: 26%; border-bottom: 1px solid #000000">&nbsp;</DIV></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 10pt"><B>CALCULATION OF REGISTRATION FEE</B>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
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    <TD width="5%">&nbsp;</TD>
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    <TD width="11%">&nbsp;</TD>
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    <TD width="1%">&nbsp;</TD>
    <TD width="11%">&nbsp;</TD>

    <TD width="1%">&nbsp;</TD>
</TR><TR style="font-size: 1px" valign="bottom">
    <TD nowrap align="left" colspan="17" style="border-bottom: 3px double #000000">&nbsp;</TD>
</TR>
<TR style="font-size: 10pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD>&nbsp;</TD>
    <TD style="border-right: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD style="border-right: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Proposed maximum</B></TD>
    <TD style="border-right: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Proposed maximum</B></TD>
    <TD style="border-right: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 10pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD nowrap align="left"><B>Title of securities</B></TD>
    <TD style="border-right: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Amount to be</B></TD>
    <TD style="border-right: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>offering</B></TD>
    <TD style="border-right: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>aggregate offering</B></TD>
    <TD style="border-right: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Amount of</B></TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 10pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD nowrap align="left"><B>to be registered</B></TD>
    <TD style="border-right: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>registered (1)</B></TD>
    <TD style="border-right: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>price per share (2)</B></TD>
    <TD style="border-right: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>price (2)</B></TD>
    <TD style="border-right: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>registration fee</B></TD>
    <TD width="1%">&nbsp;</TD>
</TR>


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                    <TD valign="top" style="border-top: 1px solid #000000"><DIV style="margin-left:0px; text-indent:-0px">Common Stock, par
value $0.01 per
share
</DIV></TD>
    <TD style="border-right: 1px solid #000000; border-top: 1px solid #000000">&nbsp;</TD>
    <TD style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD nowrap align="right" valign="bottom" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD align="right" valign="bottom" style="border-top: 1px solid #000000">100,000</TD>
    <TD nowrap valign="bottom" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD style="border-right: 1px solid #000000; border-top: 1px solid #000000">&nbsp;</TD>
    <TD style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD align="right" valign="bottom" style="border-top: 1px solid #000000">U.S. $31.81
</TD>
    <TD style="border-right: 1px solid #000000; border-top: 1px solid #000000">&nbsp;</TD>
    <TD style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD align="right" valign="bottom" style="border-top: 1px solid #000000">U.S. $3,181,000
</TD>
    <TD style="border-right: 1px solid #000000; border-top: 1px solid #000000">&nbsp;</TD>
    <TD style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD align="right" valign="bottom" style="border-top: 1px solid #000000">U.S. $226.81</TD>
    <TD width="1%" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR style="font-size: 1px" valign="bottom">
    <TD nowrap align="left" colspan="17" style="border-top: 3px double #000000">&nbsp;</TD>
</TR>

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</DIV>

<DIV style="margin-top: 10pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">(1)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><DIV style="text-align: justify">ADTRAN, Inc., a Delaware corporation (the &#147;Company&#148; or &#147;ADTRAN&#148;), is registering an
additional 100,000 shares of Common Stock pursuant to the ADTRAN, Inc. 2010 Directors Stock
Plan (the &#147;Plan&#148;). Pursuant to paragraph (a)&nbsp;of Rule&nbsp;416 under the Securities Act of 1933, as
amended (the &#147;Securities Act&#148;), there are also registered hereunder such indeterminate number
of additional shares of Common Stock as may become issuable under the Plan as a result of
stock splits, stock dividends or similar transactions that result in an increase in the number
of the registrant&#146;s outstanding shares of Common Stock.</DIV></TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 10pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">(2)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><DIV style="text-align: justify">The offering price for these shares is estimated pursuant to Rule 457(c) and (h)&nbsp;of the
Securities Act of 1933, as amended (the &#147;Securities Act&#148;), solely for the purpose of
calculating the registration fee and is based upon the average of the high and low prices of
our Common Stock as quoted on the Nasdaq National Market on July&nbsp;28, 2010, a date within five
business days of the filing date.</DIV></TD>
</TR>

</TABLE>
</DIV>

<DIV style="width: 100%; border-bottom: 1pt solid black; margin-top: 10pt; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>




<P align="center" style="font-size: 10pt">&nbsp;

<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

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<!-- TOC -->
<A name="toc"><DIV align="CENTER" style="page-break-before:always"><U><B>TABLE OF CONTENTS</B></U></DIV></A>

<P><CENTER>
<TABLE border="0" width="90%" cellpadding="0" cellspacing="0">
<TR>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
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	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="76%"></TD>
</TR>
<TR><TD colspan="9"><A HREF="#000">PART I</A></TD></TR>
<TR><TD colspan="9"><A HREF="#001">PART II</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#002">Item&nbsp;3. Incorporation of Documents by Reference</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#003">Item&nbsp;4. Description of Securities</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#004">Item&nbsp;5. Interests of Named Experts and Counsel</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#005">Item&nbsp;6. Indemnification of Directors and Officers</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#006">Item&nbsp;7. Exemption from Registration Claimed</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#007">Item&nbsp;8. Exhibits</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#008">Item&nbsp;9. Undertakings</A></TD></TR>
<TR><TD colspan="9"><A HREF="#009">SIGNATURES</A></TD></TR>
<TR><TD colspan="9"><A HREF="#010">INDEX TO EXHIBITS</A></TD></TR>
<TR><TD colspan="9"><A HREF="c04039exv4w3.htm">Exhibit 4.3</A></TD></TR>
<TR><TD colspan="9"><A HREF="c04039exv5w1.htm">Exhibit 5.1</A></TD></TR>
<TR><TD colspan="9"><A HREF="c04039exv23w1.htm">Exhibit 23.1</A></TD></TR>
</TABLE>
</CENTER>
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<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<!-- link1 "PART I" -->
<DIV align="left"><A NAME="000"></A></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 10pt"><B>PART I</B>
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 10pt"><B>INFORMATION REQUIRED IN THE SECTION 10(A) PROSPECTUS</B>
</DIV>


<DIV align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">The document(s) containing the information specified in this Part&nbsp;I of Form S-8 have been, or
will be, sent or given to participating employees as specified by Rule&nbsp;428(b)(1) under the
Securities Act. In accordance with the rules and regulations of the Securities and Exchange
Commission (the &#147;Commission&#148;) and the Note to the instructions to Part&nbsp;I of Form S-8, such
documents are not being filed with the Commission either as part of this registration statement or
as prospectuses or prospectus supplements pursuant to Rule&nbsp;424 under the Securities Act. Such
documents and the documents incorporated by reference in this registration statement pursuant to
Item&nbsp;3 of Part&nbsp;II of this registration statement, taken together, constitute a prospectus that
meets the requirements of Section 10(a) of the Securities Act.
</DIV>

<!-- link1 "PART II" -->
<DIV align="left"><A NAME="001"></A></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 10pt"><B>PART II</B>
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 10pt"><B>INFORMATION REQUIRED IN THE REGISTRATION STATEMENT</B>
</DIV>


<!-- link2 "Item&nbsp;3. Incorporation of Documents by Reference" -->
<DIV align="left"><A NAME="002"></A></DIV>

<DIV align="justify" style="font-size: 10pt; margin-top: 10pt"><B>Item&nbsp;3. Incorporation of Documents by Reference.</B>
</DIV>


<DIV align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">The Commission allows us to &#147;incorporate by reference&#148; the information we file with it, which
means that we can disclose important information to you by referring you to those documents. The
information incorporated by reference is considered part of this registration statement, and later
information that we file with the Commission will automatically update and supersede this
information. We incorporate by reference documents listed below and any future filings made with
the Commission under Sections&nbsp;13(a), 13(c), 14 or 15(d) of the Securities Exchange Act of 1934, as
amended, until we file a post-effective amendment which indicates that all securities offered in
this registration statement have been sold or which de-registers all securities then remaining
unsold.
</DIV>

<DIV align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">The following documents previously filed by ADTRAN with the Commission are incorporated in
this registration statement by reference and shall be deemed a part hereof:
</DIV>

<DIV style="margin-top: 10pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="4%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">1.</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><DIV style="text-align: justify">ADTRAN&#146;s Annual Report on Form 10-K for the fiscal year ended December&nbsp;31, 2009
filed on February&nbsp;26, 2010.</DIV></TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 10pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="4%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">2.</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><DIV style="text-align: justify">ADTRAN&#146;s Quarterly Report on Form 10-Q for the quarterly period ended June&nbsp;30,
2010, filed with the Commission on July&nbsp;29, 2010.</DIV></TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 10pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="4%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">3.</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><DIV style="text-align: justify">ADTRAN&#146;s Current Report on Form 8-K filed on May&nbsp;28, 2010; and</DIV></TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 10pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="4%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">4.</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><DIV style="text-align: justify">The description of ADTRAN&#146;s Common Stock which is contained in ADTRAN&#146;s
Registration Statement on Form 8-A (Registration No.&nbsp;0-24612), as filed with the
Commission on August&nbsp;9, 1994.</DIV></TD>
</TR>

</TABLE>
</DIV>

<DIV align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">You may request a copy of any filings referred to above (excluding exhibits), at no cost, by
contacting ADTRAN at the following address:
</DIV>


<DIV align="justify" style="font-size: 10pt; margin-top: 10pt; margin-left: 12%">ADTRAN, Inc.<BR>
Corporate Secretary<BR>
901 Explorer Boulevard<BR>
Huntsville, Alabama 35814-4000<BR>
Telephone: (256)&nbsp;963-8000
</DIV>
<P align="center" style="font-size: 10pt">&nbsp;

<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

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<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif; margin-left: .25in; width: 7.20in">

<DIV align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">For purposes of this registration statement, any statement contained in a document
incorporated or deemed to be incorporated by reference into this registration statement shall be
deemed to be modified or superseded for purposes hereof to the extent that a statement contained
herein or in any other subsequently filed document which also is or is deemed incorporated herein
by reference modifies or supersedes such statement. Any such statement so modified or superseded
shall not be deemed to constitute a part of this registration statement, except as so modified or
superseded.
</DIV>

<!-- link2 "Item&nbsp;4. Description of Securities" -->
<DIV align="left"><A NAME="003"></A></DIV>

<DIV align="justify" style="font-size: 10pt; margin-top: 10pt"><B>Item&nbsp;4. Description of Securities.</B>
</DIV>



<DIV align="justify" style="font-size: 10pt; margin-top: 10pt; margin-left: 4%">Not Applicable.
</DIV>

<!-- link2 "Item&nbsp;5. Interests of Named Experts and Counsel" -->
<DIV align="left"><A NAME="004"></A></DIV>

<DIV align="justify" style="font-size: 10pt; margin-top: 10pt"><B>Item&nbsp;5. Interests of Named Experts and Counsel.</B>
</DIV>



<DIV align="justify" style="font-size: 10pt; margin-top: 10pt; margin-left: 4%">Not Applicable.
</DIV>

<!-- link2 "Item&nbsp;6. Indemnification of Directors and Officers" -->
<DIV align="left"><A NAME="005"></A></DIV>

<DIV align="justify" style="font-size: 10pt; margin-top: 10pt"><B>Item&nbsp;6. Indemnification of Directors and Officers.</B>
</DIV>


<DIV align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">Article&nbsp;Eleventh of the Company&#146;s Certificate of Incorporation provides for the elimination of
personal monetary liabilities of directors of the Company for breaches of their fiduciary duties as
directors, except that, as provided by Section&nbsp;102(b)(7) of the General Corporation Law of the
State of Delaware (the &#147;DGCL&#148;), such personal monetary liability of a director may not be
eliminated with regard to any breach of the duty of loyalty, failing to act in good faith,
intentional misconduct or knowing violation of law, payment of an unlawful dividend, approval of an
illegal stock repurchase, or obtainment of an improper personal benefit. Such a provision has no
effect on the availability of equitable remedies, such as an injunction or rescission, for breach
of fiduciary duty.
</DIV>

<DIV align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">Article&nbsp;Twelfth of the Company&#146;s Certificate of Incorporation provides for indemnification of
directors and officers of the Company to the extent permitted by the DGCL. Section&nbsp;145 of the DGCL
provides for indemnification of directors and officers from and against expenses (including
attorney&#146;s fees), judgments, fines and amounts paid in settlement reasonably incurred by them in
connection with any civil, criminal, administrative or investigative claim or proceeding (including
civil actions brought as derivative actions by or in the right of the Company but only to the
extent of expenses reasonably incurred in defending or settling such action) in which they may
become involved by reason of being a director or officer of the Company if the director or officer
acted in good faith and in a manner which he reasonably believed to be in or not opposed to the
best interest of the Company and, in addition, in criminal actions, if he had no reasonable cause
to believe his conduct to be unlawful. If, in an action brought by or in the right of the Company,
the director or officer is adjudged to be liable for negligence or misconduct in the performance of
his duty, he will only be entitled to such indemnity as the court finds to be proper. Persons who
are successful in defense of any claim against them are entitled to indemnification as of right
against expense actually and reasonably incurred in connection therewith. In all other cases,
indemnification shall be made (unless otherwise ordered by a court) only if the board of directors,
acting by a majority vote of a quorum of disinterested directors, independent legal counsel or
holders of a majority of the shares entitled to vote determines that the applicable standard of
conduct has been met. Section&nbsp;145 also provides such indemnity for directors and officers of a
corporation who, at the request of the corporation, act as directors, officers, employees or agents
of other corporations, partnerships or other enterprises.
</DIV>


<DIV align="justify" style="font-size: 10pt; margin-top: 10pt; margin-left: 4%">Article&nbsp;VI of the Company&#146;s Bylaws provides as follows:
</DIV>


<DIV align="justify" style="font-size: 10pt; margin-top: 10pt; margin-left: 4%; text-indent: 4%">Section&nbsp;6.1. <U>Indemnification</U>. The Corporation shall indemnify and
advance expenses to any officer, director, employee or agent to the full extent
permitted by its Certificate of Incorporation, these bylaws or by law.
</DIV>
<P align="center" style="font-size: 10pt">&nbsp;

<P align="center" style="font-size: 10pt"><!-- Folio -->II-2<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif; margin-left: .25in; width: 7.20in">

<!-- link2 "Item&nbsp;7. Exemption from Registration Claimed" -->
<DIV align="left"><A NAME="006"></A></DIV>

<DIV align="justify" style="font-size: 10pt; margin-top: 10pt"><B>Item&nbsp;7. Exemption from Registration Claimed.</B>
</DIV>



<DIV align="justify" style="font-size: 10pt; margin-top: 10pt; margin-left: 4%">Not Applicable.
</DIV>

<!-- link2 "Item&nbsp;8. Exhibits" -->
<DIV align="left"><A NAME="007"></A></DIV>

<DIV align="justify" style="font-size: 10pt; margin-top: 10pt"><B>Item&nbsp;8. Exhibits.</B>
</DIV>


<DIV align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">The following exhibits are filed as part of this registration statement:
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head --><TR valign="bottom">
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="77%">&nbsp;</TD>
</TR>
<TR style="font-size: 10pt" valign="bottom">
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><B>Exhibit No.</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left" style="border-bottom: 1px solid #000000"><B>Description</B></TD>
</TR>


<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">4.1</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Certificate of Incorporation, as amended to date (filed as Exhibit&nbsp;3.1 to ADTRAN&#146;s
Registration Statement on Form&nbsp;S-1, No.&nbsp;33-81062).</DIV></TD>
</TR>
<TR valign="bottom" style="padding-top: 1px"><!-- Blank Space -->
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
</TR>
<TR valign="bottom" style="padding-top: 1px">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">4.2</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Bylaws, as amended to date (filed as Exhibit&nbsp;3.1 to ADTRAN&#146;s Current Report on Form&nbsp;8-K dated
October&nbsp;13, 2007).</DIV></TD>
</TR>
<TR valign="bottom" style="padding-top: 1px"><!-- Blank Space -->
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
</TR>
<TR valign="bottom" style="padding-top: 1px">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">4.3</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">ADTRAN, Inc. 2010 Directors Stock Plan.</DIV></TD>
</TR>
<TR valign="bottom" style="padding-top: 1px"><!-- Blank Space -->
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
</TR>
<TR valign="bottom" style="padding-top: 1px">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">5.1</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Opinion of McKenna Long &#038; Aldridge LLP.</DIV></TD>
</TR>
<TR valign="bottom" style="padding-top: 1px"><!-- Blank Space -->
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
</TR>
<TR valign="bottom" style="padding-top: 1px">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">23.1</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Consent of PricewaterhouseCoopers LLP.</DIV></TD>
</TR>
<TR valign="bottom" style="padding-top: 1px"><!-- Blank Space -->
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
</TR>
<TR valign="bottom" style="padding-top: 1px">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">23.2</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Consent of McKenna Long &#038; Aldridge LLP (included in its opinion filed as Exhibit&nbsp;5.1 hereto).</DIV></TD>
</TR>
<TR valign="bottom" style="padding-top: 1px"><!-- Blank Space -->
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
</TR>
<TR valign="bottom" style="padding-top: 1px">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">24.1</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Powers of Attorney (see signature pages to this registration statement).</DIV></TD>
</TR>
<!-- End Table Body --></TABLE>
</DIV>

<!-- link2 "Item&nbsp;9. Undertakings" -->
<DIV align="left"><A NAME="008"></A></DIV>

<DIV align="justify" style="font-size: 10pt; margin-top: 10pt"><B>Item&nbsp;9. Undertakings.</B>
</DIV>


<DIV style="margin-top: 10pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">(a)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><DIV style="text-align: justify">RULE 415 OFFERING.</DIV></TD>
</TR>

</TABLE>
</DIV>


<DIV align="justify" style="font-size: 10pt; margin-top: 10pt; margin-left: 4%">The undersigned registrant hereby undertakes:
</DIV>


<DIV align="justify" style="font-size: 10pt; margin-top: 10pt; margin-left: 4%">(1)&nbsp;To file, during any period in which offers or sales are being made, a post-effective
amendment to this registration statement:
</DIV>


<DIV align="justify" style="font-size: 10pt; margin-top: 10pt; margin-left: 8%">(i)&nbsp;To include any prospectus required by Section&nbsp;10(a)(3) of the Securities Act of
1933;
</DIV>


<DIV align="justify" style="font-size: 10pt; margin-top: 10pt; margin-left: 8%">(ii)&nbsp;To reflect in the prospectus any facts or events arising after the effective
date of the registration statement (or the most recent post-effective amendment
thereof) which, individually or in the aggregate, represent a fundamental change in
the information set forth in the registration statement. Notwithstanding the
foregoing, any increase or decrease in volume of securities offered (if the total
dollar value of securities offered would not exceed that which was registered) and
any deviation from the low or high end of the estimated maximum offering range may
be reflected in the form of prospectus filed with the Commission pursuant to Rule
424(b) if, in the aggregate, the changes in volume and price represent no more than
20&nbsp;percent change in the maximum aggregate offering price set forth in the
&#147;Calculation of Registration Fee&#148; table in the effective registration statement;
</DIV>
<P align="center" style="font-size: 10pt">&nbsp;

<P align="center" style="font-size: 10pt"><!-- Folio -->II-3<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif; margin-left: .25in; width: 7.20in">


<DIV align="justify" style="font-size: 10pt; margin-top: 10pt; margin-left: 8%">(iii)&nbsp;To include any material information with respect to the plan of distribution
not previously disclosed in the registration statement or any material change to
such information in the registration statement;
</DIV>


<DIV align="justify" style="font-size: 10pt; margin-top: 10pt; margin-left: 4%"><I>provided, however</I>, that paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if the registration
statement is on Form S-8 and the information required to be included in a post-effective
amendment by those paragraphs is contained in reports filed with or furnished to the
Commission by the Registrant pursuant to Section&nbsp;13 or 15(d) of the Securities Exchange Act
of 1934 that are incorporated by reference in the registration statement.
</DIV>


<DIV align="justify" style="font-size: 10pt; margin-top: 10pt; margin-left: 4%">(2)&nbsp;That, for the purpose of determining any liability under the Securities Act, each such
post-effective amendment shall be deemed to be a new registration statement relating to the
securities offered therein, and the offering of such securities at that time shall be deemed
to be the initial bona fide offering thereof.
</DIV>


<DIV align="justify" style="font-size: 10pt; margin-top: 10pt; margin-left: 4%">(3)&nbsp;To remove from registration by means of a post-effective amendment any of the securities
being registered which remain unsold at the termination of the offering.
</DIV>

<DIV align="justify" style="font-size: 10pt; margin-top: 10pt">(b)&nbsp;The undersigned registrant hereby undertakes that, for purposes of determining any liability
under the Securities Act of 1933, each filing of the registrant&#146;s annual report pursuant to section
13(a) or section 15(d) of the Securities Exchange Act of 1934 (and, where applicable, each filing
of an employee benefit plan&#146;s annual report pursuant to section 15(d) of the Securities Exchange
Act of 1934) that is incorporated by reference in the registration statement shall be deemed to be
a new registration statement relating to the securities offered therein, and the offering of such
securities at that time shall be deemed to be the initial bona fide offering thereof.
</DIV>

<DIV align="justify" style="font-size: 10pt; margin-top: 10pt">(c)&nbsp;Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be
permitted to directors, officers, and controlling persons of the registrant pursuant to the
foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the
Securities and Exchange Commission such indemnification is against public policy as expressed in
the Securities Act of 1933 and is, therefore, unenforceable. In the event that a claim for
indemnification against such liabilities (other than the payment by the registrant of expenses
incurred or paid by a director, officer or controlling person of the registrant in the successful
defense of any action, suit or proceeding) is asserted by such director, officer or controlling
person in connection with the securities being registered, the registrant will, unless in the
opinion of its counsel the matter has been settled by controlling precedent, submit to a court of
appropriate jurisdiction the question whether such indemnification by it is against public policy
as expressed in the Securities Act of 1933 and will be governed by the final adjudication of such
issue.
</DIV>
<P align="center" style="font-size: 10pt">&nbsp;

<P align="center" style="font-size: 10pt"><!-- Folio -->II-4<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif; margin-left: .25in; width: 7.20in">

<!-- link1 "SIGNATURES" -->
<DIV align="left"><A NAME="009"></A></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 10pt"><B>SIGNATURES</B>
</DIV>


<DIV align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">Pursuant to the requirements of the Securities Act of 1933, the registrant certifies that it
has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and
has duly caused this registration statement to be signed on its behalf by the undersigned,
thereunto duly authorized, in the city of Huntsville, State of Alabama, on July&nbsp;30, 2010.
</DIV>

<TABLE width="100%" border="0" cellspacing="0" cellpadding="0" style="font-size: 10pt">
<TR>
    <TD width="48%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="35%">&nbsp;</TD>
    <TD width="15%">&nbsp;</TD>
</TR>
<TR>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD colspan="3" align="left"><B>ADTRAN, Inc.</B><BR>
(Registrant)<BR>
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD valign="top">By:&nbsp;&nbsp;</TD>
    <TD colspan="2" style="border-bottom: 1px solid #000000" align="left">/s/ Thomas R. Stanton
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Thomas R. Stanton&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Chief Executive Officer&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR>
    <TD colspan="5">&nbsp;</TD>
</TR>
</TABLE>

<DIV align="center" style="font-size: 10pt; margin-top: 10pt"><U><B>POWER OF ATTORNEY</B></U>
</DIV>



<DIV align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and
appoints Thomas R. Stanton and James E. Matthews, and each of them, as his true and lawful
attorneys-in-fact, each acting alone, with full power of substitution and resubstitution, for him
and in his name, place and stead, in any and all capacities, to sign any and all amendments
(including any post-effective amendments) to this Registration Statement on Form S-8, and to file
the same, with all exhibits thereto and any other documents in connection therewith, with the
Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of
them, full power and authority to do and perform each and every act and thing requisite and
necessary to be done, as fully to all intents and purposes as he might or could do in person,
hereby ratifying and confirming all that said attorneys-in-fact and agents (or any of them), or
their or his substitute or substitutes, may lawfully do or cause to be done by virtue thereof.
</DIV>

<DIV align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">Pursuant to the requirements of the Securities Act of 1933, this registration statement has
been signed by the following persons in the capacities indicated as of July&nbsp;30, 2010.
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head --><TR valign="bottom">
    <TD width="40%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="55%">&nbsp;</TD>
</TR>
<TR style="font-size: 10pt" valign="bottom">
    <TD nowrap align="left" style="border-bottom: 1px solid #000000">Signatures</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000">Title</TD>
</TR>


<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom" style="padding-top: 1px">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Thomas R. Stanton
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Chairman of the Board, Chief Executive Officer and Director</TD>
</TR>
<TR valign="bottom" style="padding-top: 1px">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Thomas R. Stanton
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">(Principal Executive Officer)</TD>
</TR>
<TR valign="bottom" style="padding-top: 1px"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom" style="padding-top: 1px">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ James E. Matthews
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
James E. Matthews
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Senior Vice President &#151; Finance, Chief Financial Officer,
Treasurer, Secretary and Director<br>
(Principal Financial Officer and Principal Accounting Officer)</TD>
</TR>
<TR valign="bottom" style="padding-top: 1px"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom" style="padding-top: 1px">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ H. Fenwick Huss
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
</TR>
<TR valign="bottom" style="padding-top: 1px">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
H. Fenwick Huss
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom" style="padding-top: 1px"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom" style="padding-top: 1px">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Ross K. Ireland
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
</TR>
<TR valign="bottom" style="padding-top: 1px">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Ross K. Ireland
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom" style="padding-top: 1px"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom" style="padding-top: 1px">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ William L. Marks
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
</TR>
<TR valign="bottom" style="padding-top: 1px">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
William L. Marks
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom" style="padding-top: 1px"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom" style="padding-top: 1px">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Balan Nair
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
</TR>
<TR valign="bottom" style="padding-top: 1px">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Balan Nair
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom" style="padding-top: 1px"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom" style="padding-top: 1px">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Roy J. Nichols
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
</TR>
<TR valign="bottom" style="padding-top: 1px">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Roy J. Nichols
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<!-- End Table Body --></TABLE>
</DIV>

<P align="center" style="font-size: 10pt">&nbsp;

<P align="center" style="font-size: 10pt"><!-- Folio -->II-5<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif; margin-left: .25in; width: 7.20in">

<!-- link1 "INDEX TO EXHIBITS" -->
<DIV align="left"><A NAME="010"></A></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 10pt"><U><B>INDEX TO EXHIBITS</B></U>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head --><TR valign="bottom">
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="77%">&nbsp;</TD>
</TR>
<TR style="font-size: 10pt" valign="bottom">
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><B>Exhibit No.</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left" style="border-bottom: 1px solid #000000"><B>Description</B></TD>
</TR>


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    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">4.1</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Certificate of Incorporation, as amended to date (filed as Exhibit&nbsp;3.1 to ADTRAN&#146;s
Registration Statement on Form&nbsp;S-1, No.&nbsp;33-81062).</DIV></TD>
</TR>
<TR valign="bottom" style="padding-top: 1px"><!-- Blank Space -->
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
</TR>
<TR valign="bottom" style="padding-top: 1px">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">4.2</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Bylaws, as amended to date (filed as Exhibit&nbsp;3.1 to ADTRAN&#146;s Current Report on Form&nbsp;8-K dated
October&nbsp;13, 2007).</DIV></TD>
</TR>
<TR valign="bottom" style="padding-top: 1px"><!-- Blank Space -->
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
</TR>
<TR valign="bottom" style="padding-top: 1px">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">4.3</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">ADTRAN, Inc. 2010 Directors Stock Plan.</DIV></TD>
</TR>
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    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
</TR>
<TR valign="bottom" style="padding-top: 1px">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">5.1</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Opinion of McKenna Long &#038; Aldridge LLP.</DIV></TD>
</TR>
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    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
</TR>
<TR valign="bottom" style="padding-top: 1px">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">23.1</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Consent of PricewaterhouseCoopers LLP.</DIV></TD>
</TR>
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    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
</TR>
<TR valign="bottom" style="padding-top: 1px">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">23.2</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Consent of McKenna Long &#038; Aldridge LLP (included in its opinion filed as Exhibit&nbsp;5.1 hereto).</DIV></TD>
</TR>
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    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
</TR>
<TR valign="bottom" style="padding-top: 1px">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">24.1</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Powers of Attorney (see signature pages to this registration statement).</DIV></TD>
</TR>
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Form S-8
Table of Contents
As filed with the Securities and Exchange Commission on July 30, 2010
Registration No. 333-
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Form S-8
REGISTRATION STATEMENT UNDER
THE SECURITIES ACT OF 1933
ADTRAN
, Inc.
(Exact name of registrant as specified in its charter)
Delaware
(State or other jurisdiction of incorporation or
organization)
63-0918200
(I.R.S. Employer Identification No.)
901 Explorer Boulevard
Huntsville, Alabama
(Address of Principal Executive Offices)
35806-2807
(Zip Code)
ADTRAN, Inc. 2010 Directors Stock Plan
(Full title of the plan)
James E. Matthews
Senior Vice President — Finance,
Chief Financial Officer and Treasurer
ADTRAN, Inc.
901 Explorer Boulevard
Huntsville, Alabama 35806-2807
(Name and address of agent for service)
(256) 963-8000
(Telephone number, including area code, of agent for service)
Copies to:
Thomas Wardell, Esq.
McKenna Long & Aldridge LLP
303 Peachtree Street, NE
Suite 5300
Atlanta, Georgia 30308-3201
(404) 527-4000
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a
non-accelerated filer, or a smaller reporting company. See the definitions of "large accelerated
filer," "accelerated filer" and "smaller reporting company" in Rule 12b-2 of the Exchange Act.
Large accelerated filer
þ
Accelerated filer
o
Non-accelerated filer
o
(Do not check if a smaller reporting company)
Smaller reporting company
o
CALCULATION OF REGISTRATION FEE
Proposed maximum
Proposed maximum
Title of securities
Amount to be
offering
aggregate offering
Amount of
to be registered
registered (1)
price per share (2)
price (2)
registration fee
Common Stock, par
value $0.01 per
share
100,000
U.S. $31.81
U.S. $3,181,000
U.S. $226.81
(1)
ADTRAN, Inc., a Delaware corporation (the "Company" or "ADTRAN"), is registering an
additional 100,000 shares of Common Stock pursuant to the ADTRAN, Inc. 2010 Directors Stock
Plan (the "Plan"). Pursuant to paragraph (a) of Rule 416 under the Securities Act of 1933, as
amended (the "Securities Act"), there are also registered hereunder such indeterminate number
of additional shares of Common Stock as may become issuable under the Plan as a result of
stock splits, stock dividends or similar transactions that result in an increase in the number
of the registrant's outstanding shares of Common Stock.
(2)
The offering price for these shares is estimated pursuant to Rule 457(c) and (h) of the
Securities Act of 1933, as amended (the "Securities Act"), solely for the purpose of
calculating the registration fee and is based upon the average of the high and low prices of
our Common Stock as quoted on the Nasdaq National Market on July 28, 2010, a date within five
business days of the filing date.
TABLE OF CONTENTS
PART I
PART II
Item 3. Incorporation of Documents by Reference
Item 4. Description of Securities
Item 5. Interests of Named Experts and Counsel
Item 6. Indemnification of Directors and Officers
Item 7. Exemption from Registration Claimed
Item 8. Exhibits
Item 9. Undertakings
SIGNATURES
INDEX TO EXHIBITS
Exhibit 4.3
Exhibit 5.1
Exhibit 23.1
Table of Contents
PART I
INFORMATION REQUIRED IN THE SECTION 10(A) PROSPECTUS
The document(s) containing the information specified in this Part I of Form S-8 have been, or
will be, sent or given to participating employees as specified by Rule 428(b)(1) under the
Securities Act. In accordance with the rules and regulations of the Securities and Exchange
Commission (the "Commission") and the Note to the instructions to Part I of Form S-8, such
documents are not being filed with the Commission either as part of this registration statement or
as prospectuses or prospectus supplements pursuant to Rule 424 under the Securities Act. Such
documents and the documents incorporated by reference in this registration statement pursuant to
Item 3 of Part II of this registration statement, taken together, constitute a prospectus that
meets the requirements of Section 10(a) of the Securities Act.
PART II
INFORMATION REQUIRED IN THE REGISTRATION STATEMENT
Item 3. Incorporation of Documents by Reference.
The Commission allows us to "incorporate by reference" the information we file with it, which
means that we can disclose important information to you by referring you to those documents. The
information incorporated by reference is considered part of this registration statement, and later
information that we file with the Commission will automatically update and supersede this
information. We incorporate by reference documents listed below and any future filings made with
the Commission under Sections 13(a), 13(c), 14 or 15(d) of the Securities Exchange Act of 1934, as
amended, until we file a post-effective amendment which indicates that all securities offered in
this registration statement have been sold or which de-registers all securities then remaining
unsold.
The following documents previously filed by ADTRAN with the Commission are incorporated in
this registration statement by reference and shall be deemed a part hereof:
1.
ADTRAN's Annual Report on Form 10-K for the fiscal year ended December 31, 2009
filed on February 26, 2010.
2.
ADTRAN's Quarterly Report on Form 10-Q for the quarterly period ended June 30,
2010, filed with the Commission on July 29, 2010.
3.
ADTRAN's Current Report on Form 8-K filed on May 28, 2010; and
4.
The description of ADTRAN's Common Stock which is contained in ADTRAN's
Registration Statement on Form 8-A (Registration No. 0-24612), as filed with the
Commission on August 9, 1994.
You may request a copy of any filings referred to above (excluding exhibits), at no cost, by
contacting ADTRAN at the following address:
ADTRAN, Inc.
Corporate Secretary
901 Explorer Boulevard
Huntsville, Alabama 35814-4000
Telephone: (256) 963-8000
Table of Contents
For purposes of this registration statement, any statement contained in a document
incorporated or deemed to be incorporated by reference into this registration statement shall be
deemed to be modified or superseded for purposes hereof to the extent that a statement contained
herein or in any other subsequently filed document which also is or is deemed incorporated herein
by reference modifies or supersedes such statement. Any such statement so modified or superseded
shall not be deemed to constitute a part of this registration statement, except as so modified or
superseded.
Item 4. Description of Securities.
Not Applicable.
Item 5. Interests of Named Experts and Counsel.
Not Applicable.
Item 6. Indemnification of Directors and Officers.
Article Eleventh of the Company's Certificate of Incorporation provides for the elimination of
personal monetary liabilities of directors of the Company for breaches of their fiduciary duties as
directors, except that, as provided by Section 102(b)(7) of the General Corporation Law of the
State of Delaware (the "DGCL"), such personal monetary liability of a director may not be
eliminated with regard to any breach of the duty of loyalty, failing to act in good faith,
intentional misconduct or knowing violation of law, payment of an unlawful dividend, approval of an
illegal stock repurchase, or obtainment of an improper personal benefit. Such a provision has no
effect on the availability of equitable remedies, such as an injunction or rescission, for breach
of fiduciary duty.
Article Twelfth of the Company's Certificate of Incorporation provides for indemnification of
directors and officers of the Company to the extent permitted by the DGCL. Section 145 of the DGCL
provides for indemnification of directors and officers from and against expenses (including
attorney's fees), judgments, fines and amounts paid in settlement reasonably incurred by them in
connection with any civil, criminal, administrative or investigative claim or proceeding (including
civil actions brought as derivative actions by or in the right of the Company but only to the
extent of expenses reasonably incurred in defending or settling such action) in which they may
become involved by reason of being a director or officer of the Company if the director or officer
acted in good faith and in a manner which he reasonably believed to be in or not opposed to the
best interest of the Company and, in addition, in criminal actions, if he had no reasonable cause
to believe his conduct to be unlawful. If, in an action brought by or in the right of the Company,
the director or officer is adjudged to be liable for negligence or misconduct in the performance of
his duty, he will only be entitled to such indemnity as the court finds to be proper. Persons who
are successful in defense of any claim against them are entitled to indemnification as of right
against expense actually and reasonably incurred in connection therewith. In all other cases,
indemnification shall be made (unless otherwise ordered by a court) only if the board of directors,
acting by a majority vote of a quorum of disinterested directors, independent legal counsel or
holders of a majority of the shares entitled to vote determines that the applicable standard of
conduct has been met. Section 145 also provides such indemnity for directors and officers of a
corporation who, at the request of the corporation, act as directors, officers, employees or agents
of other corporations, partnerships or other enterprises.
Article VI of the Company's Bylaws provides as follows:
Section 6.1.
Indemnification
. The Corporation shall indemnify and
advance expenses to any officer, director, employee or agent to the full extent
permitted by its Certificate of Incorporation, these bylaws or by law.
II-2
Table of Contents
Item 7. Exemption from Registration Claimed.
Not Applicable.
Item 8. Exhibits.
The following exhibits are filed as part of this registration statement:
Exhibit No.
Description
4.1
Certificate of Incorporation, as amended to date (filed as Exhibit 3.1 to ADTRAN's
Registration Statement on Form S-1, No. 33-81062).
4.2
Bylaws, as amended to date (filed as Exhibit 3.1 to ADTRAN's Current Report on Form 8-K dated
October 13, 2007).
4.3
ADTRAN, Inc. 2010 Directors Stock Plan.
5.1
Opinion of McKenna Long & Aldridge LLP.
23.1
Consent of PricewaterhouseCoopers LLP.
23.2
Consent of McKenna Long & Aldridge LLP (included in its opinion filed as Exhibit 5.1 hereto).
24.1
Powers of Attorney (see signature pages to this registration statement).
Item 9. Undertakings.
(a)
RULE 415 OFFERING.
The undersigned registrant hereby undertakes:
(1) To file, during any period in which offers or sales are being made, a post-effective
amendment to this registration statement:
(i) To include any prospectus required by Section 10(a)(3) of the Securities Act of
1933;
(ii) To reflect in the prospectus any facts or events arising after the effective
date of the registration statement (or the most recent post-effective amendment
thereof) which, individually or in the aggregate, represent a fundamental change in
the information set forth in the registration statement. Notwithstanding the
foregoing, any increase or decrease in volume of securities offered (if the total
dollar value of securities offered would not exceed that which was registered) and
any deviation from the low or high end of the estimated maximum offering range may
be reflected in the form of prospectus filed with the Commission pursuant to Rule
424(b) if, in the aggregate, the changes in volume and price represent no more than
20 percent change in the maximum aggregate offering price set forth in the
"Calculation of Registration Fee" table in the effective registration statement;
II-3
Table of Contents
(iii) To include any material information with respect to the plan of distribution
not previously disclosed in the registration statement or any material change to
such information in the registration statement;
provided, however
, that paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if the registration
statement is on Form S-8 and the information required to be included in a post-effective
amendment by those paragraphs is contained in reports filed with or furnished to the
Commission by the Registrant pursuant to Section 13 or 15(d) of the Securities Exchange Act
of 1934 that are incorporated by reference in the registration statement.
(2) That, for the purpose of determining any liability under the Securities Act, each such
post-effective amendment shall be deemed to be a new registration statement relating to the
securities offered therein, and the offering of such securities at that time shall be deemed
to be the initial bona fide offering thereof.
(3) To remove from registration by means of a post-effective amendment any of the securities
being registered which remain unsold at the termination of the offering.
(b) The undersigned registrant hereby undertakes that, for purposes of determining any liability
under the Securities Act of 1933, each filing of the registrant's annual report pursuant to section
13(a) or section 15(d) of the Securities Exchange Act of 1934 (and, where applicable, each filing
of an employee benefit plan's annual report pursuant to section 15(d) of the Securities Exchange
Act of 1934) that is incorporated by reference in the registration statement shall be deemed to be
a new registration statement relating to the securities offered therein, and the offering of such
securities at that time shall be deemed to be the initial bona fide offering thereof.
(c) Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be
permitted to directors, officers, and controlling persons of the registrant pursuant to the
foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the
Securities and Exchange Commission such indemnification is against public policy as expressed in
the Securities Act of 1933 and is, therefore, unenforceable. In the event that a claim for
indemnification against such liabilities (other than the payment by the registrant of expenses
incurred or paid by a director, officer or controlling person of the registrant in the successful
defense of any action, suit or proceeding) is asserted by such director, officer or controlling
person in connection with the securities being registered, the registrant will, unless in the
opinion of its counsel the matter has been settled by controlling precedent, submit to a court of
appropriate jurisdiction the question whether such indemnification by it is against public policy
as expressed in the Securities Act of 1933 and will be governed by the final adjudication of such
issue.
II-4
Table of Contents
SIGNATURES
Pursuant to the requirements of the Securities Act of 1933, the registrant certifies that it
has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and
has duly caused this registration statement to be signed on its behalf by the undersigned,
thereunto duly authorized, in the city of Huntsville, State of Alabama, on July 30, 2010.
ADTRAN, Inc.
(Registrant)
By:
/s/ Thomas R. Stanton
Thomas R. Stanton
Chief Executive Officer
POWER OF ATTORNEY
KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and
appoints Thomas R. Stanton and James E. Matthews, and each of them, as his true and lawful
attorneys-in-fact, each acting alone, with full power of substitution and resubstitution, for him
and in his name, place and stead, in any and all capacities, to sign any and all amendments
(including any post-effective amendments) to this Registration Statement on Form S-8, and to file
the same, with all exhibits thereto and any other documents in connection therewith, with the
Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of
them, full power and authority to do and perform each and every act and thing requisite and
necessary to be done, as fully to all intents and purposes as he might or could do in person,
hereby ratifying and confirming all that said attorneys-in-fact and agents (or any of them), or
their or his substitute or substitutes, may lawfully do or cause to be done by virtue thereof.
Pursuant to the requirements of the Securities Act of 1933, this registration statement has
been signed by the following persons in the capacities indicated as of July 30, 2010.
Signatures
Title
/s/ Thomas R. Stanton
Chairman of the Board, Chief Executive Officer and Director
Thomas R. Stanton
(Principal Executive Officer)
/s/ James E. Matthews
James E. Matthews
Senior Vice President — Finance, Chief Financial Officer,
Treasurer, Secretary and Director
(Principal Financial Officer and Principal Accounting Officer)
/s/ H. Fenwick Huss
Director
H. Fenwick Huss
/s/ Ross K. Ireland
Director
Ross K. Ireland
/s/ William L. Marks
Director
William L. Marks
/s/ Balan Nair
Director
Balan Nair
/s/ Roy J. Nichols
Director
Roy J. Nichols
II-5
Table of Contents
INDEX TO EXHIBITS
Exhibit No.
Description
4.1
Certificate of Incorporation, as amended to date (filed as Exhibit 3.1 to ADTRAN's
Registration Statement on Form S-1, No. 33-81062).
4.2
Bylaws, as amended to date (filed as Exhibit 3.1 to ADTRAN's Current Report on Form 8-K dated
October 13, 2007).
4.3
ADTRAN, Inc. 2010 Directors Stock Plan.
5.1
Opinion of McKenna Long & Aldridge LLP.
23.1
Consent of PricewaterhouseCoopers LLP.
23.2
Consent of McKenna Long & Aldridge LLP (included in its opinion filed as Exhibit 5.1 hereto).
24.1
Powers of Attorney (see signature pages to this registration statement).
II-6