WILLIAMSTN — SC
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| BANDWIDTH.COM CLEC, LLC - SC | 077F | 1 |
| LEVEL 3 COMMUNICATIONS, LLC - SC | 5258 | 1 |
| ONVOY SPECTRUM, LLC | 624H | 1 |
| PAETEC ITEL, LLC | 829J | 1 |
| BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | 1 |