🇺🇸 925 area code
Area code 925 covers Pleasanton, Walnut Creek, Concord and Livermore and the surrounding area in California. Enter a 925 number below for a free check before you call back.
- Location: Pleasanton, California
- Time zone: Pacific (UTC−8)
- In service since March 14, 1998
Consultar un número
Validez, operador, tipo de línea y región en la primera pasada.
Area code 925 at a glance
- Area code
- 925
- Location
- California, United States
- Main cities
- Pleasanton, Walnut Creek, Concord, Livermore, Antioch, San Ramon
- Time zone
- Pacific (UTC−8)
- Local time now
- —
- In service since
- March 14, 1998
- Created from
- 510
- Local calls
- Dial 1 + 10 digits
- Number format
- (925) 555-0123
- From abroad
- +1 925 555 0123
Cities in area code 925
- Pleasanton
- Walnut Creek
- Concord
- Livermore
- Antioch
- San Ramon
- Dublin
- Martinez
- Danville
- Brentwood
Is a 925 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 925 number can be calling from anywhere.
Robocallers exploit that with "neighbor spoofing": showing a 925 number to people in California because a local-looking call is more likely to be answered. If a 925 call claims to be your bank, the IRS or a delivery company, hang up and call the official number yourself.
About area code 925
925 entered service on March 14, 1998, when it was split from 510.
Preguntas frecuentes
Area code 925 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 925?
Area code 925 is in California, United States. It covers Pleasanton, Walnut Creek, Concord, Livermore, Antioch and San Ramon.
What time zone is area code 925?
925 is in the Pacific (UTC−8) time zone, and observes daylight saving time.
When did area code 925 start?
925 entered service on March 14, 1998, created from 510.
How do I find out who called me from 925?
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 925?
If you live in or near California, they may be genuinely local — or robocalls spoofing a local-looking number. Unknown 925 callers who will not leave a message are best looked up before you call back.
Got a call from 925?
Run the free check first — validity, carrier, line type and region — and unlock the full report only if you need it.