PTTSBGZON2 — PA
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| VERIZON PENNSYLVANIA, INC. | 9208 | 7 |
| SPOK, INC. | 6630 | 6 |
| LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | 2 |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | 2 |
| COMCAST IP PHONE, LLC | 318J | 1 |