What area code is 925?
Here's everything about it.
Instant lookup for the 925 area code — location, time zone, cities served, and who's been calling from it. No sign-up, no app.
925 at a glance
Summary
Cities & regions served by 925
Concord / East Bay6 communities on record for 925.
Where 925 sits on the map
No overlayCoverage area
About the 925 region
925 covers Concord / East Bay in California, including Pleasant Hill, Walnut Creek, Martinez, Pleasanton and Dublin. The code has been in service since 1998.
925 currently has no overlay, so its territory keeps a single, unshared code.
Split of 510.
Who called me from 925?
Community reports- Caller ID is trivially spoofed: an incoming call that displays 925 does not prove the caller is really in the 925 region or even in the United States.
- Avoid calling back unknown one-ring numbers — some premium-rate scams rely on curiosity callbacks.
- Never share verification codes, payment details, or remote access during an unsolicited call, even if the caller claims to be your bank or a government agency.
- When a 925 call pressures you to act immediately, hang up and contact the organization directly through its official number.
Be the first to add a community report for a 925 number below.
Frequently asked questions
FAQWhat area code is 925?+–
925 is a telephone area code serving Concord / East Bay in California, United States, in service since 1998.
Where is area code 925 located?+–
It covers Alameda County, Contra Costa County, including Pleasant Hill, Walnut Creek, Martinez, Pleasanton and Dublin in California.
What cities are in area code 925?+–
Major communities on record include Pleasant Hill, Walnut Creek, Martinez, Pleasanton and Dublin, among others. The code's territory spans the Concord / East Bay region of California.
What time zone is 925?+–
925 observes Pacific (PT), which is UTC−8 / −7 DST and follows daylight saving time.
When did area code 925 start?+–
925 entered service in 1998. Its history: split of 510.
Is 925 a scam area code?+–
Scam and robocall traffic can use any North American code, 925 included — caller ID is easy to spoof, so the code alone does not tell you who is really calling. Check the community reports on this page before calling back an unknown 925 number, and report anything suspicious.
Can I get a 925 phone number?+–
Yes — most mobile carriers and VoIP providers let you request a 925 number regardless of where you physically live.