Everything you need to know about area code 925 in California
QUICK FACTS
California
Pacific Time Zone
Split from existing code
Estimated residents served
California
Primary code for this region
ABOUT THIS AREA CODE
Area code 925 covers the East Bay suburbs of the San Francisco Bay Area, including Concord, Walnut Creek, and Pleasanton. It serves Contra Costa County and the Tri-Valley region.
Phone numbers with the 925 area code follow the format (925) XXX-XXXX, where the next three digits represent the local exchange. The 925 area code is part of the North American Numbering Plan (NANP) and is regulated by the Federal Communications Commission (FCC).
If you receive a call from a 925 number that you don't recognize, you can search it using the lookup tool above. While the 925 area code legitimately serves millions of residents and businesses in the Concord area, scammers sometimes spoof local area codes to make their calls appear more trustworthy. Always verify unfamiliar numbers before returning calls or sharing personal information.
The Concord region served by area code 925 is one of the most significant areas in California. As a primary geographic code, 925 has been the main identifier for this region since it was introduced in 1998.
For detailed information about any phone number in the 925 area code, including owner identification, carrier data, and spam reports, use our search tool above or visit one of our trusted lookup providers.
CITIES & COMMUNITIES
SPAM & SCAM ALERTS
These are frequently reported scam patterns from phone numbers using the 925 area code. Scammers often spoof area codes, so a call appearing to come from 925 may originate elsewhere.
Callers claim your Social Security number has been suspended due to suspicious activity and demand personal information to reactivate it.
Robocalls claim your car warranty is expiring and pressure you into purchasing expensive and unnecessary extended coverage.
Callers impersonate your electric or gas company, threatening immediate service disconnection unless payment is made by phone.
Stay Safe: Never share personal information with incoming callers. If suspicious, hang up and search the number above.
FREQUENTLY ASKED QUESTIONS
Area code 925 serves Concord, California. Area code 925 covers the East Bay suburbs of the San Francisco Bay Area, including Concord, Walnut Creek, and Pleasanton. It serves Contra Costa County and the Tri-Valley region.
Area code 925 is in the Pacific timezone. Calls from 925 numbers originate from the Concord region.
Not necessarily. Area code 925 serves many people in Concord. However, scammers can spoof any area code. If you receive a suspicious call from a 925 number, search it above before calling back.
Area code 925 was created in 1998. It serves as the primary geographic code for its region.
RELATED AREA CODES
WHO CALLED ME
If you received an unknown call from a 925 number, use our dedicated lookup page to identify the caller and check for scam reports.
Who Called Me From 925? →