CLARKSSMMT — PA
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| COMMONWEALTH TELEPHONE COMPANY LLC | 0161 | 3 |
| LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | 1 |
| ONVOY, LLC - PA | 547E | 1 |
| ONVOY SPECTRUM, LLC | 624H | 1 |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | 1 |