Lookup › Area code 925
925 Area Code — Concord, California
Area code 925 serves Concord, CA.
Most looked-up 925 numbers
- 925-839-5655
- 925-334-8747
- 925-285-2011
- 925-463-0280
- 925-435-4855
- 925-734-5974
- 925-374-9403
- 925-300-4862
- 925-476-3247
- 925-332-1724
Phone prefixes in 925
Carriers serving 925
- Onvoy, LLC - CA (3 numbers)
- T-Mobile (1 numbers)
- At&t (1 numbers)
- Teleport Communications Group (1 numbers)
- Peerless Network Of California (1 numbers)
- At&t Corp. (1 numbers)
- Ip Horizon, LLC (1 numbers)
- Metro By T-Mobile (1 numbers)
Frequently asked questions
Where is area code 925?
Area code 925 serves Concord, CA.
What prefixes are in area code 925?
Phone2.io tracks 10 phone prefixes in area code 925, with carrier and spam-report data on individual numbers.
More about area code 925
Area code 925 overview, history, and local numbers · Get a CA phone number
Last updated: March 24, 2026