Brentwood California Area Code
One area code covers Brentwood: 925.
The code covering Brentwood
| Area code | Primarily serves | In service |
|---|---|---|
| 925 | Oakland | 1998 |
Scope the codes matched to Brentwood. Source geoinfo-dataset (full_dataset) ZIP→NPA (2018 snapshot) and LocalCallingGuide NPA list (2026-07 NPA list). Updated . Overlay relationships come from the numbering-plan authority; the place match is computed.
Which part of town has which code
Brentwood has a single code, so there is nothing to divide — every local line carries 925.
ZIP codes for the same city
Postal geography is organised separately from telephone geography, so Brentwood’s 1 ZIP code do not map onto the codes above. They are listed in full, with the county each falls in, on the postal side of the site.
Brentwood California ZIP codes →
Nearby places with different codes
These are the closest places to Brentwood whose area codes are not the same set. If you are near one of them, a local number may carry a code that is not on the list above.
| City | Distance | Their area codes |
|---|---|---|
| Antioch California area codes | 5.1 mi | 341, 510, 925 |
| Pittsburg California area codes | 11 mi | 341, 510, 925 |
| Danville California area codes | 16 mi | 341, 510, 925 |
| San Ramon California area codes | 17 mi | 341, 415, 510, 628, 925 |
| Rio Vista California area codes | 17 mi | 369, 707 |
| Isleton California area codes | 17 mi | 279, 916 |
| Alamo California area codes | 17 mi | 341, 510, 925 |
| Livermore California area codes | 17 mi | 341, 510, 925 |
Straight-line distance between place reference points, not driving distance.