925 area code: location, time zone and numbers
Since 1998, area code 925 has been a US telephone area code for San Francisco, California.
- Location
- San Francisco, California
- Service began
- 1998
- Local time zone
- Pacific time zone
- Overlay
- None: no other code covers that area
- Calls inside the area
- Dialling format: 1 + 10-digit
- The rate centres
- 17
- Expected exhaust
- 2051
- Country calling prefix
- +1 (United States)
Source: NANPA public reports, the area code report and the rate-centre report, file dated 11/01/2026; for the exhaust year we used the NANPA projections 2026-1 (April 2026). We are not an official NANPA site.
Get your own 925 number
Two routes take you to a 925 number. With its plan, a provider assigns a new number, chosen at sign-up from the numbers it has in the code. Numbers a seller already holds are on offer, often with a pattern, at a one-time price. After that you take the number over to a provider.
Providers, sorted by first-year cost
| Provider | Cheapest plan | First year | Link |
|---|---|---|---|
 Free app | Basic (Just for me), free | $0 | Open Google Voice |
 Free app | Free plan, free | $0 | Open TextNow |
 Developer API | Pay-as-you-go local number, $1.15 a month | $13.80 | Open Twilio |
 Second-number app | Standard, $3.99 a month billed yearly | $47.99 | Open Burner |
 Toll-free specialist | Solo, $6.99 a month billed yearly | $84 | Open UniTel Voice |
 Second-number app | Deluxe (local number), $6.99 a month billed yearly | $102.88 | Open GoDaddy Conversations (formerly Smartline) |
Sellers listing local numbers
| Seller | What it sells | Listed price | Monthly fee | Link |
|---|---|---|---|---|
 Marketplace | Local numbers | From $9 one-time | None stated | Search at Exclusive Digits |
 Marketplace | Local and toll-free | From $9.95 one-time | $2.99 a month | Search at NumberBarn |
 Number broker | Local and toll-free | From $99 one-time | None stated | Search at RingBoost |
 Number broker | Local and toll-free | From $100 one-time | None stated | Search at PhoneNumberExpert |
| 212areacode.comNumber broker | Local numbers | From $150 one-time | None stated | Search at 212areacode.com |
From some sellers and providers, we may earn a referral fee. The order stays by first-year cost, and it never changes. How we earn
Places in the 925 area code
For 925, NANPA lists 17 rate centres. Every rate centre is a local calling area, and numbers are assigned to it:
The list runs from Antioch through Bishop Ranch, Clayton, Concord and Danville to Dublin-san Ramon, East Contra Costa and Lafayette. Livermore, Martinez, Moraga, Orinda and Pittsburg come next, followed by Pleasanton, Pittsburg West, Sunol and Walnut Creek.
Other related area codes
Other area codes in California: 213, 415, 916, 714, 805, 209, 408, 707, 619, 818, 510, 310, 909, 562, 760, 626, 650, 530, 949, 323, 831, 559, 661, 858, 951, 424, 657, 747, 442, 669, 628, 279, 820, 341, 840, 350, 369, 738, 837 and 357.
925 area code questions
Where is the 925 area code?
Calls to 925 ring in San Francisco, California, around San Francisco-Oakland-Fremont, CA.
Which country code does a 925 number use?
+1. Because 925 sits in the North American Numbering Plan, callers abroad dial +1 925 plus the 7-digit number.
What time is it in the 925 area code?
Pacific time applies to 925.
Who uses a 925 number to call?
Homes, mobiles and local businesses use numbers in this code, and so do callers who fake a local number. What a 925 number shows on your screen is the place it was assigned, not the person calling.