GREENSBORO — NC
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | 65 |
| SUNCOM DBA T-MOBILE USA | 8645 | 24 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC | 6324 | 23 |
| PAETEC ITEL, LLC | 829J | 15 |
| ONVOY, LLC - NC | 638E | 10 |