COLUMBIA — PA
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE | 6846 | 11 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | 3 |
| BRIGHTSPEED OF PENNSYLVANIA, LLC | 0209 | 2 |
| BANDWIDTH.COM CLEC, LLC - PA | 002F | 1 |
| ONVOY, LLC - PA | 547E | 1 |