Look up any phone number starting with 951 to identify the owner name, address, spam reports, and more. The 951 area code is a telephone area code serving western Riverside County in California.
Enter a full 10-digit number to identify the caller and whether it has been reported as spam.
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Area code 951 covers the southern portion of what was previously area code 909, encompassing western Riverside County and a small portion of San Bernardino County.
Area code 951 was created in 2004 from a split of area code 909 . Area code 909 also serves areas near area code 951. Prior to October 2021, area code 951 transitioned to ten-digit dialing.
Area code 951 is a general purpose code which was placed in service on July 17, 2004.
Our California phone number lookup for the 951 area code analyzes the three-digit prefix to identify the initially assigned telecommunications company and rate center. This prefix code data may help to determine the U.S. carrier, California geographic region, and local calling area associated with the phone number.
Phone numbers follow the following structure under the North American Numbering Plan:
Understanding the area code can help you determine if a call is local to your area. However, keep in mind that due to mobile number portability and VoIP services, the caller may be anywhere in the United States, so it’s best to search for the most recent phone number details.
| Company | Number of Prefixes |
|---|---|
| PACIFIC BELL | 74 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 64 |
| FRONTIER CALIFORNIA INC. | 64 |
| SPRINT SPECTRUM, L.P. | 46 |
| NEW CINGULAR WIRELESS PCS, LLC | 36 |
| T-MOBILE USA, INC. | 24 |
| LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 14 |
| LEVEL 3 COMMUNICATIONS, LLC - CA | 13 |
| METROPCS NETWORKS, LLC | 10 |
| BANDWIDTH.COM CLEC, LLC - CA | 9 |
| O1 COMMUNICATIONS, INC. - CA | 9 |
| ONVOY, LLC - CA | 7 |
| TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB | 5 |
| U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 5 |
| GLOBAL CROSSING LOCAL SERVICES, INC. - CA | 4 |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 4 |
| TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 4 |
| CENTURYLINK COMMUNICATIONS, LLC | 3 |
| CHARTER FIBERLINK CA-CCO, LLC - CA | 3 |
| MATRIX TELECOM, LLC. S/I/I TNCI - CA | 3 |
| XO CALIFORNIA, INC. | 3 |
| AT&T - LOCAL | 2 |
| AT&T CORP. | 2 |
| PACIFIC BELL (COMPETITIVE) | 2 |
| PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 2 |
| YMAX COMMUNICATIONS CORP. - CA | 2 |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 1 |
| WIDE VOICE, LLC - CA | 1 |
Carrier names have been updated from their original FCC assignments to reflect current companies following mergers, acquisitions, and rebranding. Updates were determined using AI-assisted research and may not be accurate or reflect up to date changes. This data is provided without warranties of accuracy or completeness.
| Rate Center | Number of Prefixes |
|---|---|
| RIVERSIDE | 110 |
| CORONA | 66 |
| TEMECULA | 41 |
| PERRIS | 30 |
| MORENO | 29 |
| MURRIETA | 28 |
| ARLINGTON | 27 |
| HEMT HEMT | 19 |
| ELSINORE | 11 |
| SUN CITY | 10 |
| MIRA LOMA | 9 |
| WOODCREST | 9 |
| BANNING | 7 |
| HEMT SNJC | 7 |
| HEMT HMLD | 4 |
| HEMT ANZA | 3 |
| TEMSCL CNY | 3 |
| COLTON | 1 |
| IDYLLWILD | 1 |
| LAKEVIEWNU | 1 |
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