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San Francisco, CA Area Codes

San Francisco, California (population 826,079) uses area codes 415 and 628.

Area code415
Area code628
Time zonePacific
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San FranciscoSan RafaelNovatoMill ValleyLarkspurSan AnselmoTamalpais-Homestead ValleyCorte MaderaTiburonFairfaxKentfieldSausalitoLucas Valley-MarinwoodSan Francisco
San Francisco and nearby cities in area code 415

Carriers with San Francisco numbers

717 prefixes are assigned to the San Francisco exchange: 23% mobile, 23% VoIP and cable, 54% landline.

CarrierPrefixes
AT&T (Pacific Bell)278
AT&T Mobility64
Verizon Wireless51
T-Mobile44
Onvoy (Sinch)42
Lumen (Level 3)36
Verizon Business (MCImetro)32
AT&T (Teleport)26

Area codes used in San Francisco

Area codePrefixes serving San FranciscoMain carriers in this code
415601AT&T (Pacific Bell), AT&T Mobility, Verizon Wireless
628116Onvoy (Sinch), Fractel, T-Mobile

San Francisco phone number prefixes

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

Nearby cities in area code 415

Questions

What is the area code for San Francisco, CA?
San Francisco uses 2 area codes: 415 and 628. They overlay each other, so all of them cover the whole city and you dial 10 digits for local calls.
What time zone is San Francisco in?
San Francisco is in the Pacific time zone.