Look up any phone number starting with 669 to identify the owner name, address, spam reports, and more. The 669 area code is a telephone area code serving the southern San Francisco Bay Area, California.
Enter a full 10-digit number to identify the caller and whether it has been reported as spam.
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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 November 20, 2012.
Our California phone number lookup for the 669 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 |
|---|---|
| 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 |
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 |
|---|---|
| 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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