ROSELLE — IL
Data last updated: August 31, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | 132 |
| ILLINOIS BELL TEL CO | 9329 | 53 |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | 8 |
| TELEPORT COMMUNICATIONS AMERICA, LLC - IL | 7136 | 7 |
| T-MOBILE USA, INC. | 6529 | 3 |