PLANO — IL
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| ONVOY, LLC | 224C | 1 |
| FIRST COMMUNICATIONS, LLC | 460K | 1 |
| PAETEC ITEL, LLC | 829J | 1 |
| ILLINOIS BELL TEL CO | 9329 | 1 |
| BANDWIDTH.COM CLEC, LLC - IL | 984E | 1 |
Data last updated: March 10, 2026
| Carrier | OCN | NXX Count |
|---|---|---|
| ONVOY, LLC | 224C | 1 |
| FIRST COMMUNICATIONS, LLC | 460K | 1 |
| PAETEC ITEL, LLC | 829J | 1 |
| ILLINOIS BELL TEL CO | 9329 | 1 |
| BANDWIDTH.COM CLEC, LLC - IL | 984E | 1 |