LOUISVILLE — OH
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| OHIO BELL TEL CO | 9321 | 2 |
| BANDWIDTH.COM CLEC, LLC - OH | 001F | 1 |
| LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | 1 |
| IP HORIZON LLC | 515J | 1 |
| TWC IP ENABLED SERVICES, LLC | 793K | 1 |