The SCCMap says that this segment of road is indeed not East El Camino Real. It changes to East El Camino Real at the Mountain View/Sunnyvale border. This part of El Camino Real in Sunnyvale is West El Camino Real. The road names have been updated to match the data from SCCMap and the Santa Clara Tax Assessor website.

Source: https://geoess.sccgov.org/discovergis/sccmap