🇺🇸 415 area code
Area code 415 covers San Francisco, San Rafael, Novato and Mill Valley and the surrounding area in California. It shares that territory with 628, so the same neighbourhood can have numbers in any of them. Enter a 415 number below for a free check before you call back.
- Location: San Francisco, California
- Time zone: Pacific (UTC−8)
- In service since 1947
Look up a number
Validity, carrier, line type, and region on the first pass.
Area code 415 at a glance
- Area code
- 415
- Location
- California, United States
- Main cities
- San Francisco, San Rafael, Novato, Mill Valley, Sausalito, Corte Madera
- Time zone
- Pacific (UTC−8)
- Local time now
- —
- In service since
- 1947
- Overlay codes
- 628
- Codes split from it
- 209, 408, 510, 628, 650, 707
- Local calls
- Dial 1 + 10 digits
- Number format
- (415) 555-0123
- From abroad
- +1 415 555 0123
Cities in area code 415
- San Francisco
- San Rafael
- Novato
- Mill Valley
- Sausalito
- Corte Madera
- Bolinas
- Greenbrae
Is a 415 call a scam?
An area code tells you where a number was first assigned, not where the caller is. Mobile numbers keep their area code when people move, and internet (VoIP) numbers can be picked in any area code — so a 415 number can be calling from anywhere.
Robocallers exploit that with "neighbor spoofing": showing a 415 number to people in California because a local-looking call is more likely to be answered. If a 415 call claims to be your bank, the IRS or a delivery company, hang up and call the official number yourself.
About area code 415
415 is one of the original North American area codes, created in 1947 when AT&T and the Bell System first divided the continent into numbering plan areas.
It is part of the 415/628 overlay: the codes cover the same area, and a new line there can be given a number in any of them. Two neighbours — or two phones in one household — can have different area codes. That is also why local calls need the full ten digits.
As the region grew, 209, 408, 510, 628, 650 and 707 were carved out of or added to 415.
FAQ
Area code 415 questions
Sources: NANPA NPA database (11/04/2026) and Google libphonenumber. Area codes show where a number was assigned, not where its owner is today.
Where is area code 415?
Area code 415 is in California, United States. It covers San Francisco, San Rafael, Novato, Mill Valley, Sausalito and Corte Madera.
What time zone is area code 415?
415 is in the Pacific (UTC−8) time zone, and observes daylight saving time.
What area codes overlay 415?
628 serves the same area as 415. Numbers in all of them are local to one another.
When did area code 415 start?
415 entered service in 1947.
How do I find out who called me from 415?
Enter the full number in the lookup at the top of this page. The free check confirms whether the number is valid and shows its carrier, line type and region; a full report adds owner and public-web records where they are available.
Why am I getting calls from area code 415?
If you live in or near California, they may be genuinely local — or robocalls spoofing a local-looking number. Unknown 415 callers who will not leave a message are best looked up before you call back.
Got a call from 415?
Run the free check first — validity, carrier, line type and region — and unlock the full report only if you need it.