Area Code Details for: 925
Location
State
California
Country
US
Map
Details
State | California (CA) |
Time Zone | |
Parent NPA | 510 |
Relief Planning in ProgressArea code relief planning is the process of addressing the exhaustion of available telephone numbers within an area code. When the supply of numbers in an existing area code is running low, NANPA works with the telecommunications industry to introduce new area codes. | No |
In Service Date | March 14, 1998 |
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Cities
| Zipcode | City | County |
|---|---|---|
| 94523 | Pleasant Hill, CA | Contra Costa |
| 94524 | Concord, CA | Contra Costa |
| 94521 | Concord, CA | Contra Costa |
| 94522 | Concord, CA | Contra Costa |
| 94526 | Danville, CA | Contra Costa |
| 94528 | Diablo, CA | Contra Costa |
| 94529 | Concord, CA | Contra Costa |
| 94531 | Antioch, CA | Contra Costa |
| 94527 | Concord, CA | Contra Costa |
| 94513 | Brentwood, CA | Contra Costa |
| 94595 | Walnut Creek, CA | Contra Costa |
| 94596 | Walnut Creek, CA | Contra Costa |
| 94514 | Byron, CA | Contra Costa |
| 94586 | Sunol, CA | Alameda |
| 94588 | Pleasanton, CA | Alameda |
| 94516 | Canyon, CA | Contra Costa |
| 94511 | Bethel Island, CA | Contra Costa |
| 94506 | Danville, CA | Contra Costa |
| 94507 | Alamo, CA | Contra Costa |
| 94509 | Antioch, CA | Contra Costa |
| 94517 | Clayton, CA | Contra Costa |
| 94598 | Walnut Creek, CA | Contra Costa |
| 94597 | Walnut Creek, CA | Contra Costa |
| 94518 | Concord, CA | Contra Costa |
| 94583 | San Ramon, CA | Contra Costa |
| 94556 | Moraga, CA | Contra Costa |
| 94561 | Oakley, CA | Contra Costa |
| 94519 | Concord, CA | Contra Costa |
| 94553 | Martinez, CA | Contra Costa |
| 94549 | Lafayette, CA | Contra Costa |
| 94550 | Livermore, CA | Alameda |
| 94551 | Livermore, CA | Alameda |
| 94563 | Orinda, CA | Contra Costa |
| 94570 | Moraga, CA | Contra Costa |
| 94575 | Moraga, CA | Contra Costa |
| 94582 | San Ramon, CA | Contra Costa |
| 94568 | Dublin, CA | Alameda |
| 94565 | Pittsburg, CA | Contra Costa |
| 94566 | Pleasanton, CA | Alameda |
| 94520 | Concord, CA | Contra Costa |
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