Pick 415 if the number should read as San Francisco.
415 dates from 1947. It covers the city, Daly City and Brisbane to the south, and Sausalito, Mill Valley and San Rafael to the north.
The area codes for San Francisco are 415 and 628.
Area codes in San Francisco
Get a phone number with the right area code for San Francisco.
415 and 628 cover the City and County of San Francisco and most of Marin County across the Golden Gate. Oakland and San Mateo have their own codes.
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Pick 415 for San Francisco, or 628 if you want the newer code over the same streets.
Pick 628 if you want a code that is not 415.
628 entered service on March 21, 2015, over the same area as 415, so a 628 number is just as much a San Francisco number.
Pick 510 if the number is for Oakland and the East Bay.
510 was split from 415 in 1991. It covers Oakland and the East Bay, which are not San Francisco.
People filed 244 FCC complaints about unwanted calls from San Francisco area codes in 12 months.
From October 2025 to September 2026, 244 unwanted-call complaints filed with the FCC gave a caller ID number that started with 415 and 628. 415 was named most, on 174 of them (71%).
- 244unwanted-call complaints named a San Francisco code
- 415was named on the most of them, 174
- 71%of the San Francisco complaints named 415
Source: Federal Communications Commission, CGB - Consumer Complaints Data (dataset 3xyp-aqkj), issue "Unwanted Calls", read on November 4, 2026. Caller ID can be faked, so a code shows what appeared on the phone, not where the caller was.
This is how you get a San Francisco number.
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Type the code you picked.
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People ask these questions about San Francisco area codes.
More in the full FAQ.
No. 650 was split from 415 in 1997 and covers San Mateo County and Palo Alto. San Francisco itself kept 415.
Yes. 628 is laid over 415, so it covers the same ground: San Francisco, most of Marin County and a small piece of San Mateo County.
A local call in San Francisco is dialed with 1 plus ten digits, whichever of its codes the number starts with. The area code is part of every number you give out.
From October 2025 to September 2026, people filed 244 FCC complaints about unwanted calls from numbers that start with a San Francisco code: 415 (174) and 628 (70). A complaint is one person's report. Caller ID can be faked, so a code shows what appeared on the phone, not where the caller was.
Yes. You type the area code you want when you create a number, and you do not need to live in San Francisco. Calls ring the phone you already have, and texts land in your ExpressNumber inbox.
No. Your numbers are receive-only: they take calls and texts, and they never make them. You answer calls on your own phone, and you cannot reply to a text from the inbox.
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Codes around San Francisco
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Every fact on this page comes from public numbering records.
The codes, the places and the years are rows of the North American Numbering Plan Administrator's area code database, and the complaints are the FCC's own.
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