OAKFORD — IL
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| TERRA NOVA TELECOM INC. | 145J | 1 |
| ONVOY, LLC | 224C | 1 |
| ILLINOIS BELL TEL CO | 9329 | 1 |
Data last updated: June 25, 2026
| Carrier | OCN | NXX Count |
|---|---|---|
| TERRA NOVA TELECOM INC. | 145J | 1 |
| ONVOY, LLC | 224C | 1 |
| ILLINOIS BELL TEL CO | 9329 | 1 |