RIDGEFIELD — WA
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| COMCAST IP PHONE, LLC | 318J | 1 |
| ONVOY, LLC - WA | 483E | 1 |
| LEVEL 3 COMMUNICATIONS, LLC - WA | 6121 | 1 |
| TELEPORT COMMUNICATIONS AMERICA, LLC - WA | 7146 | 1 |
| QWEST CORPORATION | 9638 | 1 |