TOPEKA — IL
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| BRIGHTSPEED OF ILLINOIS, LLC | 1057 | 1 |
| ONVOY, LLC | 224C | 1 |
| ONVOY SPECTRUM, LLC | 624H | 1 |
Data last updated: March 10, 2026
| Carrier | OCN | NXX Count |
|---|---|---|
| BRIGHTSPEED OF ILLINOIS, LLC | 1057 | 1 |
| ONVOY, LLC | 224C | 1 |
| ONVOY SPECTRUM, LLC | 624H | 1 |