PAGE 1
       =================================================================



                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                      -------------------------------------

                                    FORM 8-K

                                 CURRENT REPORT
                     PURSUANT TO SECTION 13 OR 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

                      November 12, 1997  (November 9, 1997) 
                Date of report (Date of earliest event reported)

                         MCI Communications Corporation
       -----------------------------------------------------------------
             (Exact name of registrant as specified in its charter)


        Delaware                                      52-0886267
----------------------------------------          -----------------
(State of incorporation or organization)           (I.R.S. Employer
                                                    Identification No.)


1801 Pennsylvania Avenue, N.W.
         Washington DC                                   20006
-----------------------------------------          -----------------
 (Address of principal executive offices)              (Zip Code)


Registrant's telephone number, including area code: 202-872-1600



       =================================================================





<PAGE>



                                     PAGE 2

Item 5.  Other Events

         On  November  9,  1997,  MCI  Communications  Corporation,  a  Delaware
corporation (the  "Company"),  entered into an Agreement and Plan of Merger (the
"Agreement") with WorldCom,  Inc., a Georgia  corporation  ("WorldCom"),  and TC
Investments  Corp.,  a Delaware  corporation  and a  wholly-owned  subsidiary of
WorldCom ("Merger Sub"),  pursuant to which the Company will merge with and into
Merger Sub (the "Merger"). As a result of the Merger, (a) each outstanding share
of the Company's Common Stock, par value $.10 per share (other than shares owned
by WorldCom or Merger Sub or held by the Company or WorldCom, or shares of Class
A Common  Stock),  will be  converted  into the right to receive  that number of
shares of WorldCom common stock, par value $.01 per share, equal to the quotient
determined by dividing  $51.00 by the average of the high and low sale prices of
WorldCom  common stock as reported on The Nasdaq  National Market on each of the
twenty  consecutive  trading days ending with the third trading day  immediately
preceding the effective time of the Merger (the "Exchange Ratio"), provided that
the Exchange Ratio shall not be less than 1.2439 or greater than 1.7586; and (b)
each outstanding  share of the Company's Class A Common Stock (other than shares
of Class A Common  Stock owned by WorldCom or Merger Sub or held by the Company)
shall be converted  into the right to receive $51.00 in cash,  without  interest
thereon.

     Concurrent   with  the  Agreement,   the  Company,   WorldCom  and  British
Telecommunications  plc  ("BT")  entered  into an  agreement  (the  "Termination
Agreement")  whereby (i) the Agreement and Plan of Merger,  dated as of November
3, 1996,  as amended  (the "BT Merger  Agreement"),  among the  Company,  BT and
Tadworth Corporation was terminated; (ii) WorldCom agreed to pay BT $450,000,000
and  expenses  not in  excess  of  $15,000,000  in  connection  with the plan of
reorganization  in order to induce BT to waive its  rights  under,  and agree to
terminate,  the BT Merger  Agreement;  (iii) BT agreed to  support  and vote its
shares  of Class A Common  Stock in favor of the  Merger;  and (iv) BT agreed to
exercise  its call  option to acquire  MCI's  shares in  Concert  Communications
Company immediately following the effective time of the Merger.

         Consummation of the Merger is subject to certain conditions,  including
receipt of the approval of the Merger and the transactions  contemplated thereby
by the  stockholders  of the  Company  and  WorldCom  and  receipt  of  required
regulatory approvals.

         The  foregoing  descriptions  of  the  Agreement  and  the  Termination
Agreement  and  the  transactions  contemplated  thereby  do not  purport  to be
complete and are qualified in their  entirety by reference to (i) the Agreement,
a copy of which is  attached  as  Exhibit  2  hereto;  and (ii) the  Termination
Agreement, a copy of which is attached as Exhibit 10 hereto.



<PAGE>




                                     PAGE 3

Item 7.  Financial Statements and Exhibits

         (c) The following exhibits are filed with this report:

         2. Agreement and Plan of Merger dated as of November 9, 1997, among MCI
Communications Corporation, WorldCom, Inc. and TC Investments Corp.

         10.   Agreement,   dated  as  of  November  9,  1997,   among   British
Telecommunications plc, MCI Communications Corporation and WorldCom, Inc.

         99. Press Release issued by MCI Communications  Corporation on November
10, 1997 announcing the Merger.




                                   SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Company
has duly  caused  this  report  to be signed  on its  behalf by the  undersigned
thereunto duly authorized.

MCI COMMUNICATIONS CORPORATION


By:  /S/ Edward G. Freitag
    --------------------------
     Edward G. Freitag
     Assistant Secretary


Dated:  November 12, 1997


<PAGE>


                                  EXHIBIT INDEX


Exhibit
No.                        Description

2                 Agreement and Plan of Merger dated as of November 9,
                  1997, among MCI Communications Corporation, WorldCom,
                  Inc. and TC Investments Corp.

10                Agreement, dated as of November 9, 1997, among British
                  Telecommunications plc, MCI Communications Corporation
                  and WorldCom, Inc.

99                Press  Release  issued by MCI  Communications  Corporation  on
                  November 10, 1997 announcing the Merger.
[{"type": "8-K", "sequence": "1", "description": "CURRENT REPORT ON FORM 8-K", "secsgml_size_bytes": 6136}]
{"company-data": {"conformed-name": "MCI COMMUNICATIONS CORP", "cik": "0000064079", "assigned-sic": "4813", "irs-number": "520886267", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-06547", "film-number": "97715012"}, "business-address": {"street1": "1801 PENNSYLVANIA AVE N W", "city": "WASHINGTON", "state": "DC", "zip": "20006", "phone": "2028721600"}, "mail-address": {"street1": "1801 PENNSYVANIA AVENUE NW", "city": "WASHINGTON", "state": "DC", "zip": "20006"}}
PAGE 1
       =================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                      -------------------------------------

                                    FORM 8-K

                                 CURRENT REPORT
                     PURSUANT TO SECTION 13 OR 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

                      November 12, 1997  (November 9, 1997) 
                Date of report (Date of earliest event reported)

                         MCI Communications Corporation
       -----------------------------------------------------------------
             (Exact name of registrant as specified in its charter)

        Delaware                                      52-0886267
----------------------------------------          -----------------
(State of incorporation or organization)           (I.R.S. Employer
                                                    Identification No.)

1801 Pennsylvania Avenue, N.W.
         Washington DC                                   20006
-----------------------------------------          -----------------
 (Address of principal executive offices)              (Zip Code)

Registrant's telephone number, including area code: 202-872-1600

       =================================================================
PAGE 2

Item 5.  Other Events

         On  November  9,  1997,  MCI  Communications  Corporation,  a  Delaware
corporation (the  "Company"),  entered into an Agreement and Plan of Merger (the
"Agreement") with WorldCom,  Inc., a Georgia  corporation  ("WorldCom"),  and TC
Investments  Corp.,  a Delaware  corporation  and a  wholly-owned  subsidiary of
WorldCom ("Merger Sub"),  pursuant to which the Company will merge with and into
Merger Sub (the "Merger"). As a result of the Merger, (a) each outstanding share
of the Company's Common Stock, par value $.10 per share (other than shares owned
by WorldCom or Merger Sub or held by the Company or WorldCom, or shares of Class
A Common  Stock),  will be  converted  into the right to receive  that number of
shares of WorldCom common stock, par value $.01 per share, equal to the quotient
determined by dividing  $51.00 by the average of the high and low sale prices of
WorldCom  common stock as reported on The Nasdaq  National Market on each of the
twenty  consecutive  trading days ending with the third trading day  immediately
preceding the effective time of the Merger (the "Exchange Ratio"), provided that
the Exchange Ratio shall not be less than 1.2439 or greater than 1.7586; and (b)
each outstanding  share of the Company's Class A Common Stock (other than shares
of Class A Common  Stock owned by WorldCom or Merger Sub or held by the Company)
shall be converted  into the right to receive $51.00 in cash,  without  interest
thereon.

     Concurrent   with  the  Agreement,   the  Company,   WorldCom  and  British
Telecommunications  plc  ("BT")  entered  into an  agreement  (the  "Termination
Agreement")  whereby (i) the Agreement and Plan of Merger,  dated as of November
3, 1996,  as amended  (the "BT Merger  Agreement"),  among the  Company,  BT and
Tadworth Corporation was terminated; (ii) WorldCom agreed to pay BT $450,000,000
and  expenses  not in  excess  of  $15,000,000  in  connection  with the plan of
reorganization  in order to induce BT to waive its  rights  under,  and agree to
terminate,  the BT Merger  Agreement;  (iii) BT agreed to  support  and vote its
shares  of Class A Common  Stock in favor of the  Merger;  and (iv) BT agreed to
exercise  its call  option to acquire  MCI's  shares in  Concert  Communications
Company immediately following the effective time of the Merger.

         Consummation of the Merger is subject to certain conditions,  including
receipt of the approval of the Merger and the transactions  contemplated thereby
by the  stockholders  of the  Company  and  WorldCom  and  receipt  of  required
regulatory approvals.

         The  foregoing  descriptions  of  the  Agreement  and  the  Termination
Agreement  and  the  transactions  contemplated  thereby  do not  purport  to be
complete and are qualified in their  entirety by reference to (i) the Agreement,
a copy of which is  attached  as  Exhibit  2  hereto;  and (ii) the  Termination
Agreement, a copy of which is attached as Exhibit 10 hereto.
PAGE 3

Item 7.  Financial Statements and Exhibits

         (c) The following exhibits are filed with this report:

         2. Agreement and Plan of Merger dated as of November 9, 1997, among MCI
Communications Corporation, WorldCom, Inc. and TC Investments Corp.

         10.   Agreement,   dated  as  of  November  9,  1997,   among   British
Telecommunications plc, MCI Communications Corporation and WorldCom, Inc.

         99. Press Release issued by MCI Communications  Corporation on November
10, 1997 announcing the Merger.

                                   SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Company
has duly  caused  this  report  to be signed  on its  behalf by the  undersigned
thereunto duly authorized.

MCI COMMUNICATIONS CORPORATION

By:  /S/ Edward G. Freitag
    --------------------------
     Edward G. Freitag
     Assistant Secretary

Dated:  November 12, 1997
EXHIBIT INDEX

Exhibit
No.                        Description

2                 Agreement and Plan of Merger dated as of November 9,
                  1997, among MCI Communications Corporation, WorldCom,
                  Inc. and TC Investments Corp.

10                Agreement, dated as of November 9, 1997, among British
                  Telecommunications plc, MCI Communications Corporation
                  and WorldCom, Inc.

99                Press  Release  issued by MCI  Communications  Corporation  on
                  November 10, 1997 announcing the Merger.