| General Information about Area Code 925 | |
|---|---|
| Country | United States |
| State / Province / Territory | California |
| Major City | Walnut Creek |
| Time Zone | Pacific (UTC-08:00) |
| Prefix | Primary City | County | Phone Type |
|---|---|---|---|
| 925-692 | Concord | Contra Costa | Landline |
| 925-229 | Martinez | Contra Costa | Landline |
| 925-962 | Walnut Creek | Contra Costa | Landline |
| 925-742 | Livermore | Alameda | Wireless |
| 925-687 | Concord | Contra Costa | Landline |
| 925-473 | Pittsburg | Contra Costa | Landline |
| 925-500 | Martinez | Contra Costa | Landline |
| 925-674 | Concord | Contra Costa | Landline |
| 925-737 | Pleasanton | Alameda | Wireless |
| 925-444 | Walnut Creek | Contra Costa | Landline |
| 925-725 | Danville | Contra Costa | Landline |
| 925-205 | Antioch | Contra Costa | Wireless |
| 925-217 | Danville | Contra Costa | Landline |
| 925-299 | Walnut Creek | Contra Costa | Landline |
| 925-606 | Livermore | Alameda | Landline |
| 925-521 | Concord | Contra Costa | Landline |
| 925-326 | Concord | Contra Costa | Landline |
| 925-627 | Walnut Creek | Contra Costa | Landline |
| 925-431 | Pittsburg | Contra Costa | Landline |
| 925-679 | Brentwood | Contra Costa | Landline |