The 669 area code is a telephone area code serving the southern San Francisco Bay Area, California. To start a free reverse phone lookup, simply enter the full 10-digit number (including the 669 area code) below and access available caller information such as name, address, and more.
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Phone numbers with the 669 area code originate from communities located within the southern San Francisco Bay Area in California, specifically encompassing the majority of Santa Clara County and the northern portion of Santa Cruz County.
Area code 669 was introduced as an overlay to the existing 408 area code, serving the same geographic region. Area code 408 was originally split from area code 415 in 1959. Area code 669 was officially put into service on November 20, 2012, marking the first overlay in the San Francisco Bay Area. As of October 20, 2012, ten-digit dialing is required for all calls within this numbering plan area. During a permissive dialing period from April 21 to October 20, 2012, calls could be initiated by either seven- or ten-digit dialing, with ten-digit dialing also requiring the prefix digit '1' for certain calls.
Area code 669 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 669 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 |
|---|---|
| ONVOY, LLC - CA | 11 |
| T-MOBILE USA, INC. | 8 |
| NEW CINGULAR WIRELESS PCS, LLC | 5 |
| BANDWIDTH.COM CLEC, LLC - CA | 3 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 3 |
| LEVEL 3 COMMUNICATIONS, LLC - CA | 3 |
| AT&T CORP. | 1 |
| COMCAST IP PHONE, LLC | 1 |
| PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 1 |
| TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 1 |
| Rate Center | Number of Prefixes |
|---|---|
| SNJS SOUTH | 8 |
| SNJS NORTH | 7 |
| CAMPBELL | 6 |
| SNJS WEST | 5 |
| SUNNYVALE | 4 |
| MORGANHILL | 3 |
| GILROY | 2 |
| LOS GATOS | 1 |
| SAN MARTIN | 1 |
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