PHLDLPHZN4 — PA
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| VERIZON PENNSYLVANIA, INC. | 9208 | 50 |
| NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | 7 |
| ONVOY, LLC - PA | 547E | 6 |
| OMNIPOINT COMMUNICATIONS ENTERPRISES, LP | 6626 | 6 |
| PAETEC ITEL, LLC | 829J | 6 |