JOHNSTON — SC
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC | 6398 | 4 |
| NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | 2 |
| BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | 1 |
| FRACTEL, LLC | 965H | 1 |