| 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 |
|---|---|---|---|
| 925-934 | Walnut Creek | Contra Costa | Wireless |
| 925-301 | Antioch | Contra Costa | Landline |
| 925-372 | Martinez | Contra Costa | Landline |
| 925-940 | Oakland | Alameda | Landline |
| 925-682 | Concord | Contra Costa | Landline |
| 925-787 | Concord | Contra Costa | Wireless |
| 925-956 | Walnut Creek | Contra Costa | Landline |
| 925-759 | Antioch | Contra Costa | Wireless |
| 925-580 | Pleasanton | Alameda | Wireless |
| 925-232 | Pittsburg | Contra Costa | Landline |
| 925-419 | San Ramon | Contra Costa | Wireless |
| 925-673 | Clayton | Contra Costa | Landline |
| 925-600 | Pleasanton | Alameda | Landline |
| 925-279 | Walnut Creek | Contra Costa | Wireless |
| 925-283 | Walnut Creek | Contra Costa | Landline |
| 925-472 | Walnut Creek | Contra Costa | Wireless |
| 925-351 | Pleasanton | Alameda | Wireless |
| 925-277 | Danville | Contra Costa | Landline |
| 925-359 | Dublin | Alameda | Landline |
| 925-281 | Antioch | Contra Costa | Landline |