Area Code 925

Area code 925 covers Concord and nearby cities including Antioch, Livermore, San Ramon in California, in the Pacific Time.

Area code 925 quick facts

LocationConcord, California
Time zonePacific Time
In service1998-03-14
Nearby codes650, 415, 628, 341, 510, 408
Carrier coverage634 prefixes; 35% wireless
FTC complaint data295 complaints across 66 numbers
Data current as ofAugust 2, 2026

Is a call from 925 a scam? Who called me from 925?

FTC complaints involving 925 numbers

66numbers reported
295FTC complaints

Numbers shown with area code 925 in the FTC's Do Not Call “Reported Calls” database (recent reporting window). Most common reported reasons: “Other”, “Dropped call or no message”, “Reducing your debt (credit cards, mortgage, student loans)”.

Most-complained 925 numbers:

These are FTC Do Not Call complaints filed about specific numbers shown with this area code — frequently spoofed. The area code itself is not a scam. See the most-reported area codes and the most-reported phone numbers nationwide.

Cities in area code 925

Concord, Antioch, Livermore, San Ramon, Pleasanton, Walnut Creek, Pittsburg, Brentwood, Dublin, Danville, Oakley, Martinez

Area codes by city

Carriers in area code 925

Area code 925 spans 634 prefixes, about 35% wireless. Top carriers: PACIFIC BELL, ONVOY, LLC - CA, T-MOBILE USA, INC., NEW CINGULAR WIRELESS PCS, LLC. Look up the carrier and line type for a 925 number.

Other California area codes

Nearby area codes

Frequently asked questions

Where is area code 925?

Area code 925 covers Concord and nearby cities including Antioch, Livermore, San Ramon in California, in the Pacific Time.

What cities use area code 925?

Area code 925 serves Concord, Antioch, Livermore, San Ramon, Pleasanton, and 10 other communities in California.

What time zone is area code 925 in?

Area code 925 is in the Pacific Time (America/Los_Angeles).

How do you dial a 925 number?

Dial all 10 digits: 925 followed by the 7-digit local number. From abroad, dial +1 925 and the local number.

Is a call from area code 925 a scam?

A 925 number is geographically tied to California, but caller ID can be spoofed, so the displayed area code does not prove where a caller really is. If you did not expect the call, do not share personal information and consider looking the number up.

Is 925 a country code?

No. 925 is a US area code (a domestic 3-digit code), not a country code. The country (calling) code for the United States is +1, shared across the North American Numbering Plan. So a full 925 number written for international dialing looks like +1 925 followed by the 7-digit local number.

Sourced from the official NANPA (North American Numbering Plan Administrator) numbering database, current as of August 2, 2026. Refreshed monthly.