OAKFIELD — WI
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| FRONTIER NORTH INC. - WI | 0886 | 1 |
| TERRA NOVA TELECOM INC. | 145J | 1 |
| UNITED STATES CELLULAR - WI | 6274 | 1 |
Data last updated: June 25, 2026
| Carrier | OCN | NXX Count |
|---|---|---|
| FRONTIER NORTH INC. - WI | 0886 | 1 |
| TERRA NOVA TELECOM INC. | 145J | 1 |
| UNITED STATES CELLULAR - WI | 6274 | 1 |