ZION — IL
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| T-MOBILE USA, INC. | 6529 | 5 |
| ILLINOIS BELL TEL CO | 9329 | 3 |
| TELEPORT COMMUNICATIONS AMERICA, LLC - IL | 7136 | 2 |
| TON80 COMMUNICATIONS, LLC | 516J | 1 |
| PAETEC ITEL, LLC | 829J | 1 |
Data last updated: March 10, 2026
| Carrier | OCN | NXX Count |
|---|---|---|
| T-MOBILE USA, INC. | 6529 | 5 |
| ILLINOIS BELL TEL CO | 9329 | 3 |
| TELEPORT COMMUNICATIONS AMERICA, LLC - IL | 7136 | 2 |
| TON80 COMMUNICATIONS, LLC | 516J | 1 |
| PAETEC ITEL, LLC | 829J | 1 |