WAUPUN — WI
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| ONVOY, LLC - WI | 225C | 2 |
| BANDWIDTH.COM CLEC, LLC - WI | 007F | 1 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | 1 |
| TELEPORT COMMUNICATIONS AMERICA, LLC WI | 7216 | 1 |
| PAETEC ITEL, LLC | 829J | 1 |