COLUMBUS — WI
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| UNITED STATES CELLULAR - WI | 6274 | 1 |
| T-MOBILE USA, INC. | 6529 | 1 |
| TELEPORT COMMUNICATIONS AMERICA, LLC WI | 7216 | 1 |
| CHARTER IP ENABLED SERVICES, LLC | 792K | 1 |
| WISCONSIN BELL INC | 9327 | 1 |