FREEPORT — IL
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| UNITED STATES CELLULAR - IL | 6265 | 12 |
| FRONTIER NORTH, INC. - IL | 1036 | 6 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | 4 |
| AERO NORTH COMMUNICATIONS, INC. - IL | 443F | 1 |
| METROPCS, INC. | 5562 | 1 |