Area Codes
| 669 | California This Area code is scheduled to provide numbering relief to Area code 408 but no date has been assigned for this to go into effect. | More information at: Area Code 669 Phone Number Blocks
| 669 | California This Area code is scheduled to provide numbering relief to Area code 408 but no date has been assigned for this to go into effect. | More information at: Area Code 669 Phone Number Blocks