Area code 925 is assigned for use in California since Mar 14, 1998. This area code originated from the 510 area code previously by means of area code split or overlay. View all phone prefixes used in area code 925 or other area codes in California. Included with the location of each prefix are the phone companies / service providers that operates them.
| Area code / prefix | Location | Company / Service Provider |
|---|---|---|
| 925-200 | PLEASANTON, CA | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
| 925-201 | PLEASANTON, CA | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS |
| 925-202 | PLEASANTON, CA | T-MOBILE USA, INC. |
| 925-203 | PITTSBURG, CA | NEW CINGULAR WIRELESS PCS, LLC |
| 925-204 | ANTIOCH, CA | T-MOBILE USA, INC. |
| 925-205 | DANVILLE, CA | T-MOBILE USA, INC. |
| 925-206 | ANTIOCH, CA | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
| 925-207 | CONCORD, CA | METROPCS, INC. |
| 925-208 | DANVILLE, CA | TELEPORT COMMUNICATIONS AMERICA, LLC - CA |
| 925-209 | PLEASANTON, CA | T-MOBILE USA, INC. |
| 925-210 | Walnut Creek, CA | PACIFIC BELL |
| 925-212 | Walnut Creek, CA | NEW CINGULAR WIRELESS PCS, LLC |
| 925-213 | Walnut Creek, CA | USA MOBILITY WIRELESS, INC. |
| 925-214 | Walnut Creek, CA | PEERLESS NETWORK OF CALIFORNIA, LLC - CA |
| 925-215 | LIVERMORE, CA | LEVEL 3 COMMUNICATIONS, LLC - CA |
| 925-216 | Dublin / San Ramon, CA | NEW CINGULAR WIRELESS PCS, LLC |
| 925-217 | DANVILLE, CA | LEVEL 3 COMMUNICATIONS, LLC - CA |
| 925-218 | PLEASANTON, CA | LEVEL 3 COMMUNICATIONS, LLC - CA |
| 925-219 | ANTIOCH, CA | LEVEL 3 COMMUNICATIONS, LLC - CA |
| 925-220 | PITTSBURG, CA | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
| 925-221 | Walnut Creek, CA | 33 WIRELESS INC. |
| 925-222 | CONCORD, CA | ONVOY, LLC - CA |
| 925-223 | PLEASANTON, CA | MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
| 925-224 | PLEASANTON, CA | PACIFIC BELL |
| 925-225 | PLEASANTON, CA | PACIFIC BELL |
| 925-226 | PLEASANTON, CA | MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
| 925-227 | PLEASANTON, CA | PACIFIC BELL |
| 925-228 | MARTINEZ, CA | PACIFIC BELL |
| 925-229 | MARTINEZ, CA | PACIFIC BELL |
| 925-230 | Dublin / San Ramon, CA | LEVEL 3 COMMUNICATIONS, LLC - CA |
| 925-231 | MARTINEZ, CA | LEVEL 3 COMMUNICATIONS, LLC - CA |
| 925-232 | Pittsburg, CA | LEVEL 3 COMMUNICATIONS, LLC - CA |
| 925-233 | SUNOL, CA | LEVEL 3 COMMUNICATIONS, LLC - CA |
| 925-234 | ANTIOCH, CA | LEVEL 3 COMMUNICATIONS, LLC - CA |
| 925-235 | MORAGA, CA | LEVEL 3 COMMUNICATIONS, LLC - CA |
| 925-236 | Dublin / San Ramon, CA | LEVEL 3 COMMUNICATIONS, LLC - CA |
| 925-237 | ANTIOCH, CA | MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
| 925-238 | ANTIOCH, CA | COMCAST IP PHONE, LLC |
| 925-239 | Walnut Creek, CA | PEERLESS NETWORK OF CALIFORNIA, LLC - CA |
| 925-240 | E Contra Costa, CA | PACIFIC BELL |
| 925-241 | Dublin / San Ramon, CA | MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
| 925-242 | Bishop's Ranch, CA | PACIFIC BELL |
| 925-243 | LIVERMORE, CA | PACIFIC BELL |
| 925-244 | Bishop's Ranch, CA | PACIFIC BELL |
| 925-245 | LIVERMORE, CA | PACIFIC BELL |
| 925-246 | CONCORD, CA | PACIFIC BELL |
| 925-247 | MORAGA, CA | PACIFIC BELL |
| 925-248 | Dublin / San Ramon, CA | PACIFIC BELL |
| 925-249 | PLEASANTON, CA | PACIFIC BELL |
| 925-250 | CONCORD, CA | METROPCS, INC. |
| 925 Area Code Information | ||
|---|---|---|
| Type of code: | General Purpose Code | |
| Location: | CA - US | |
| Time zone: | P | |
| Assigned for use: | Yes | |
| Code in service: | Yes | |
| Service date: | 03/14/98 | |
| In jeopardy: | No | |
| Relief in progress: | No | |
| NPA Relief status: | ||
| Code assignable: | Yes | |
| Geographic or non-geographic: |
G | |
| Reserved for future use: | No | |
| Planning letter(s): | 556 544 080 061 | |
| Overlay code: | No | |
| Overlay complex: | ||
| Dialing plan | Standard | Permissive |
| Home local calls: | 1+10D | NA |
| Foreign local calls: | 1+10D | NA |
| Home toll calls: | 1+10D | NA |
| Foreign toll calls: | 1+10D | - |