FREEBURG — IL
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| BOOST SUBSCRIBERCO L.L.C. | 490J | 1 |
| CHARTER IP ENABLED SERVICES, LLC | 792K | 1 |
| ILLINOIS BELL TEL CO | 9329 | 1 |
Data last updated: March 10, 2026
| Carrier | OCN | NXX Count |
|---|---|---|
| BOOST SUBSCRIBERCO L.L.C. | 490J | 1 |
| CHARTER IP ENABLED SERVICES, LLC | 792K | 1 |
| ILLINOIS BELL TEL CO | 9329 | 1 |