Area Codes
| 511 | Rarely used, is directed to local police non-emergency services in some communities. Starting to be used as the 5-1-1 service. | More information at: Area Code 511 Phone Number Blocks
| 511 | Rarely used, is directed to local police non-emergency services in some communities. Starting to be used as the 5-1-1 service. | More information at: Area Code 511 Phone Number Blocks