WILLIAMSPT — PA
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | 19 |
| VERIZON PENNSYLVANIA, INC. | 9208 | 9 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | 8 |
| LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | 2 |
| WINDSTREAM D & E SYSTEMS, INC. - PA | 4114 | 2 |