READING — PA
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| VERIZON PENNSYLVANIA, INC. | 9208 | 30 |
| NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | 16 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | 16 |
| D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE | 6846 | 15 |
| COMCAST IP PHONE, LLC | 318J | 5 |