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San Anselmo, CA Area Codes

San Anselmo, California (population 12,555) uses area codes 415 and 628.

Area code415
Area code628
Time zonePacific
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San Anselmo has no telephone exchange of its own in NANPA records; it is served by the San Rafael exchange about 5.5 km away.

San AnselmoSan FranciscoSan RafaelNovatoMill ValleyLarkspurTamalpais-Homestead ValleyCorte MaderaTiburonFairfaxKentfieldSausalitoLucas Valley-MarinwoodSan Anselmo
San Anselmo and nearby cities in area code 415

Carriers with San Anselmo numbers

79 prefixes are assigned to the San Rafael exchange: 20% mobile, 29% VoIP and cable, 51% landline.

CarrierPrefixes
AT&T (Pacific Bell)29
Onvoy (Sinch)9
Lumen (Level 3)7
T-Mobile6
AT&T Mobility5
Verizon Wireless5
Verizon Business (MCImetro)4
Tpx Communications4

Area codes used in San Anselmo

Area codePrefixes serving San AnselmoMain carriers in this code
41562AT&T (Pacific Bell), AT&T Mobility, Verizon Wireless
62817Onvoy (Sinch), Fractel, T-Mobile

San Anselmo phone number prefixes

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

Nearby cities in area code 415

Questions

What is the area code for San Anselmo, CA?
San Anselmo 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 Anselmo in?
San Anselmo is in the Pacific time zone.