ALTON — NC
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| ONVOY, LLC - NC | 638E | 2 |
| LEVEL 3 COMMUNICATIONS, LLC - NC | 3235 | 1 |
| FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - NC | 4334 | 1 |
| BANDWIDTH.COM CLEC, LLC - NC | 998E | 1 |
Data last updated: June 25, 2026
| Carrier | OCN | NXX Count |
|---|---|---|
| ONVOY, LLC - NC | 638E | 2 |
| LEVEL 3 COMMUNICATIONS, LLC - NC | 3235 | 1 |
| FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - NC | 4334 | 1 |
| BANDWIDTH.COM CLEC, LLC - NC | 998E | 1 |