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Foster City, CA Area Code

Foster City, California (population 32,411) uses area code 650.

Area code650
Time zonePacific
Local time now…

Foster City has no telephone exchange of its own in NANPA records; it is served by the San Mateo exchange about 5.3 km away.

Foster CitySan MateoDaly CityMountain ViewRedwood CityPalo AltoSouth San FranciscoNewarkSan BrunoPacificaMenlo ParkBurlingameLos AltosFoster City
Foster City and nearby cities in area code 650

Carriers with Foster City numbers

126 prefixes are assigned to the San Mateo exchange: 32% mobile, 20% VoIP and cable, 48% landline.

CarrierPrefixes
AT&T (Pacific Bell)49
AT&T Mobility18
T-Mobile15
Onvoy (Sinch)7
Verizon Wireless7
Verizon Business (MCImetro)6
Lumen (Level 3)6
Bandwidth3

Area codes used in Foster City

Area codePrefixes serving Foster CityMain carriers in this code
650126AT&T (Pacific Bell), AT&T Mobility, T-Mobile

Foster City phone number prefixes

Numbers starting with these first six digits were originally assigned to the San Mateo exchange.

Nearby cities in area code 650

Questions

What is the area code for Foster City, CA?
The area code for Foster City, California is 650.
What time zone is Foster City in?
Foster City is in the Pacific time zone.