DENMARK — WI
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | 1 |
| ONVOY, LLC - WI | 225C | 1 |
| LEVEL 3 COMMUNICATIONS, LLC - WI | 5489 | 1 |
| METROPCS, INC. | 5562 | 1 |
Data last updated: March 10, 2026
| Carrier | OCN | NXX Count |
|---|---|---|
| BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | 1 |
| ONVOY, LLC - WI | 225C | 1 |
| LEVEL 3 COMMUNICATIONS, LLC - WI | 5489 | 1 |
| METROPCS, INC. | 5562 | 1 |