WISCONDLLS — WI
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| FRONTIER NORTH INC. - WI | 0886 | 2 |
| NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | 2 |
| UNITED STATES CELLULAR - WI | 6274 | 1 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | 1 |
| T-MOBILE USA, INC. | 6529 | 1 |