COLUMBIA — SC
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | 99 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC | 6398 | 42 |
| SUNCOM DBA T-MOBILE USA | 8645 | 22 |
| NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | 18 |
| PAETEC ITEL, LLC | 829J | 15 |