| 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 |
|---|---|---|---|
| 925-778 | Antioch | Contra Costa | Landline |
| 925-259 | Orinda | Contra Costa | Landline |
| 925-922 | Pleasanton | Alameda | Wireless |
| 925-762 | Danville | Contra Costa | Landline |
| 925-685 | Concord | Contra Costa | Landline |
| 925-858 | San Ramon | Contra Costa | Wireless |
| 925-957 | Martinez | Contra Costa | Landline |
| 925-469 | Pleasanton | Alameda | Wireless |
| 925-574 | San Ramon | Contra Costa | Landline |
| 925-871 | Oakland | Alameda | Landline |
| 925-429 | Concord | Contra Costa | Landline |
| 925-384 | Antioch | Contra Costa | Landline |
| 925-448 | Walnut Creek | Contra Costa | Wireless |
| 925-835 | Sunol | Alameda | Landline |
| 925-598 | Pleasanton | Alameda | Wireless |
| 925-794 | Moraga | Contra Costa | Landline |
| 925-920 | Walnut Creek | Contra Costa | Wireless |
| 925-439 | Pittsburg | Contra Costa | Landline |
| 925-353 | Fremont | Alameda | Wireless |
| 925-333 | Walnut Creek | Contra Costa | Wireless |