RICHMOND — WI
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| AT&T ENTERPRISES, LLC | 516C | 1 |
| CHARTER IP ENABLED SERVICES, LLC | 792K | 1 |
| WISCONSIN BELL INC | 9327 | 1 |
Data last updated: March 10, 2026
| Carrier | OCN | NXX Count |
|---|---|---|
| AT&T ENTERPRISES, LLC | 516C | 1 |
| CHARTER IP ENABLED SERVICES, LLC | 792K | 1 |
| WISCONSIN BELL INC | 9327 | 1 |