The 650 area code is a telephone area code serving the San Francisco Bay Area in the U. To start a free reverse phone lookup, simply enter the full 10-digit number (including the 650 area code) below and access available caller information such as name, address, and more.
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Phone numbers with the 650 area code prefix originate from San Mateo County, portions of San Francisco, and the northwestern part of Santa Clara County in California. It was split from area code 415 on August 2, 1997.
Area code 650 is a General Purpose Code which was placed in service on January 1, 1947.
Our reverse phone lookup will analyze the three-digit prefix of any 650 area code phone number and will show which telecommunications company and rate center it was initially assigned to. This prefix code data may help to determine the U.S. carrier, California geographic region, and local calling area associated with the phone number.
| Company | Number of Prefixes |
|---|---|
| PACIFIC BELL | 264 |
| NEW CINGULAR WIRELESS PCS, LLC | 43 |
| LEVEL 3 COMMUNICATIONS, LLC - CA | 32 |
| SPRINT SPECTRUM, L.P. | 26 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 23 |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 22 |
| T-MOBILE USA, INC. | 21 |
| TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 18 |
| U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 18 |
| ONVOY, LLC - CA | 17 |
| XO CALIFORNIA, INC. | 12 |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 9 |
| METROPCS, INC. | 8 |
| O1 COMMUNICATIONS, INC. - CA | 8 |
| LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7 |
| AT&T - LOCAL | 6 |
| GLOBAL CROSSING LOCAL SERVICES, INC. - CA | 6 |
| ASTOUND BROADBAND, LLC - CA | 5 |
| BANDWIDTH.COM CLEC, LLC - CA | 5 |
| AMERICAN MESSAGING SERVICES, LLC | 4 |
| COMCAST IP PHONE, LLC | 3 |
| UTILITY TELECOM GROUP, LLC - CA | 3 |
| USA MOBILITY WIRELESS, INC. | 2 |
| AIRESPRING, INC. | 1 |
| AT&T CORP. | 1 |
| PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 1 |
| RCLEC, INC. | 1 |
| Rate Center | Number of Prefixes |
|---|---|
| PALO ALTO | 125 |
| SAN MATEO | 106 |
| SSNFRNCSCO | 73 |
| MT VIEW | 70 |
| REDWOOD CY | 57 |
| SNCRL-BLMT | 36 |
| LOS ALTOS | 21 |
| SNFC JUNPR | 19 |
| MILLBRAE | 15 |
| HALFMOONBY | 12 |
| PACIFICA | 10 |
| PESCADERO | 9 |
| WOODSIDE | 8 |
| MOSS BEACH | 3 |
| LA HONDA | 2 |
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