Area Codes
| 657 | California This Area code is scheduled to provide numbering relief to Area code 714 with a planned in service date of September 23, 2008. | More information at: Area Code 657 Phone Number Blocks
| 657 | California This Area code is scheduled to provide numbering relief to Area code 714 with a planned in service date of September 23, 2008. | More information at: Area Code 657 Phone Number Blocks