The 925 Area Code (or Area Code 925) is located in the state of CA. Area Code 925 is one of the 269 3-digit telephone area codes in the USA. It covers roughly 1.26 million unique phone numbers and 3.92 million individuals near the city of Pleasanton
Area code 925 was put into service. Area code 925 was created from a split of area code 510.
Antioch, Brentwood, Clayton, Concord, Danville, Fremont, Hayward, Lafayette, Livermore, Martinez, Moraga, Oakland, Oakley, Orinda, Pittsburg, Pleasanton, San Ramon, Sunol, Walnut Creek.
| PREFIX | COUNTY | CITY | CARRIER | TYPE |
|---|---|---|---|---|
| 925-429 | Contra Costa | Concord | Broadwing Communications, Llc - CA | Landline |
| 925-431 | Contra Costa | Pittsburg | Pacific Bell | Landline |
| 925-432 | Contra Costa | Pittsburg | Pacific Bell | Landline |
| 925-435 | Contra Costa | Concord | T-Mobile Usa, Inc. | Landline |
| 925-437 | Contra Costa | Concord | New Cingular Wireless Pcs, Llc | Wireless |
| 925-438 | Contra Costa | Orinda | U.s. Telepacific Corp. - CA | Landline |
| 925-439 | Contra Costa | Pittsburg | Pacific Bell | Landline |
| 925-443 | Alameda | Livermore | Pacific Bell | Landline |
| 925-444 | Contra Costa | Lafayette | U.s. Telepacific Corp. - CA | Landline |
| 925-446 | Contra Costa | Concord | Sprint Spectrum L.p. | Wireless |
| 925-447 | Alameda | Livermore | Pacific Bell | Landline |
| 925-449 | Alameda | Livermore | Pacific Bell | Landline |
| 925-451 | Contra Costa | Walnut Creek | New Cingular Wireless Pcs, Llc | Wireless |
| 925-452 | Contra Costa | San Ramon | U.s. Telepacific Corp. - CA | Landline |
| 925-453 | Alameda | Livermore | Mcimetro Access Transmission Services Llc | Landline |
| 925-454 | Alameda | Livermore | Pacific Bell | Landline |
| 925-455 | Alameda | Livermore | Pacific Bell | Landline |
| 925-456 | Alameda | Livermore | Pacific Bell | Landline |
| 925-457 | Contra Costa | Walnut Creek | Sprint Spectrum L.p. | Wireless |
| 925-458 | Contra Costa | Pittsburg | Pacific Bell | Landline |
| 925-459 | Contra Costa | Concord | Broadwing Communications, Llc - CA | Landline |
| 925-460 | Alameda | Pleasanton | Pacific Bell | Wireless |
| 925-461 | Alameda | Pleasanton | Pacific Bell | Landline |
| 925-462 | Alameda | Pleasanton | Pacific Bell | Landline |
| 925-463 | Alameda | Pleasanton | Pacific Bell | Wireless |
| 925-464 | Contra Costa | Walnut Creek | Cellco Partnership Dba Verizon Wireless - CA | Wireless |
| 925-465 | Contra Costa | Walnut Creek | Broadwing Communications, Llc - CA | Landline |
| 925-467 | Alameda | Pleasanton | Pacific Bell | Wireless |
| 925-468 | Alameda | Pleasanton | Pacific Bell | Wireless |
| 925-469 | Alameda | Pleasanton | Pacific Bell | Wireless |
| 925-470 | Contra Costa | Antioch | Teleport Communications Group - San Francisco | Landline |
| 925-472 | Contra Costa | Walnut Creek | Pacific Bell | Wireless |
| 925-473 | Contra Costa | Pittsburg | Pacific Bell | Landline |
| 925-474 | Alameda | Pleasanton | U.s. Telepacific Corp. - CA | Landline |
| 925-475 | Alameda | Pleasanton | Matrix Telecom, Llc. Sii Tnci - CA | Landline |
| 925-476 | Alameda | Oakland | Matrix Telecom, Llc. Sii Tnci - CA | Landline |
| 925-478 | Contra Costa | Walnut Creek | Level 3 Communications, Llc - CA | Landline |
| 925-479 | Contra Costa | San Ramon | Pacific Bell | Landline |
| 925-480 | Contra Costa | San Ramon | U.s. Telepacific Corp. - CA | Landline |
| 925-482 | Contra Costa | Walnut Creek | U.s. Telepacific Corp. - CA | Landline |
| 925-484 | Alameda | Pleasanton | Pacific Bell | Landline |
| 925-485 | Alameda | Pleasanton | Pacific Bell | Landline |
| 925-487 | Contra Costa | San Ramon | New Cingular Wireless Pcs, Llc | Wireless |
| 925-493 | Alameda | Livermore | Teleport Communications Group - San Francisco | Landline |
| 925-497 | Contra Costa | Concord | Metro Pcs, Inc. | Wireless |
| 925-498 | Contra Costa | San Ramon | U.s. Telepacific Corp. - CA | Landline |
| 925-500 | Contra Costa | Martinez | O1 Communications, Inc. - CA | Landline |
| 925-509 | Contra Costa | San Ramon | Usa Mobility Wireless, Inc. | Wireless |
| 925-513 | Contra Costa | Brentwood | Pacific Bell | Landline |
| 925-516 | Contra Costa | Brentwood | Pacific Bell | Landline |
| 925-517 | Contra Costa | Pittsburg | O1 Communications, Inc. - CA | Landline |
| 925-518 | Alameda | Livermore | Sprint Spectrum L.p. | Wireless |
| 925-519 | Alameda | Pleasanton | Cellco Partnership Dba Verizon Wireless - CA | Wireless |
| 925-520 | Alameda | Pleasanton | Pacific Bell | Wireless |
| 925-521 | Contra Costa | Concord | Pacific Bell | Landline |
| 925-522 | Contra Costa | Antioch | Pacific Bell | Landline |
| 925-523 | Alameda | Pleasanton | Pacific Bell | Wireless |
| 925-524 | Contra Costa | Clayton | Pacific Bell | Landline |
| 925-525 | Alameda | Livermore | Sprint Spectrum L.p. | Wireless |
| 925-526 | Contra Costa | Pittsburg | U.s. Telepacific Corp. - CA | Landline |
| 925-527 | Contra Costa | Walnut Creek | Utility Telecom Group, Llc - CA | Wireless |
| 925-528 | Contra Costa | Orinda | Sprint Spectrum L.p. | Wireless |
| 925-529 | Contra Costa | Antioch | Cf Communications, Llc Dba Telekenex - CA | Landline |
| 925-535 | Alameda | Pleasanton | Sprint Spectrum L.p. | Wireless |
| 925-543 | Contra Costa | San Ramon | Pacific Bell | Landline |
| 925-548 | Contra Costa | San Ramon | New Cingular Wireless Pcs, Llc | Wireless |
| 925-549 | Contra Costa | San Ramon | New Cingular Wireless Pcs, Llc | Wireless |
| 925-550 | Contra Costa | Antioch | New Cingular Wireless Pcs, Llc | Wireless |
| 925-551 | Contra Costa | San Ramon | Pacific Bell | Landline |
| 925-552 | Contra Costa | Danville | Pacific Bell | Landline |
| Phone Number 925-232-1423 |
USAGE Landline |
City Pittsburg |
Operate Read more about who called from 9252321423 |
Update Time Mar-26-2026 |
| Phone Number 925-678-5585 |
USAGE Landline |
City Danville |
Operate Read more about who called from 9256785585 |
Update Time Mar-26-2026 |
| Phone Number 925-307-5895 |
USAGE Landline |
City San Ramon |
Operate Read more about who called from 9253075895 |
Update Time Mar-26-2026 |
| Phone Number 925-482-7247 |
USAGE Landline |
City Walnut Creek |
Operate Read more about who called from 9254827247 |
Update Time Mar-26-2026 |
| Phone Number 925-361-2225 |
USAGE Landline |
City San Ramon |
Operate Read more about who called from 9253612225 |
Update Time Mar-26-2026 |
| Phone Number 925-891-7343 |
USAGE Landline |
City Oakland |
Operate Read more about who called from 9258917343 |
Update Time Mar-26-2026 |
| Phone Number 925-332-4738 |
USAGE Landline |
City Concord |
Operate Read more about who called from 9253324738 |
Update Time Mar-26-2026 |
| Phone Number 925-318-6878 |
USAGE Landline |
City Walnut Creek |
Operate Read more about who called from 9253186878 |
Update Time Mar-26-2026 |
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