MCDONALD — PA
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| ADVANCED TELEPHONE SYS INC DBA HTC COMMUNICATIONS | 2522 | 1 |
| ONVOY SPECTRUM, LLC | 624H | 1 |
| TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | 1 |
| PAETEC ITEL, LLC | 829J | 1 |
| VERIZON PENNSYLVANIA, INC. | 9208 | 1 |