MIDDLETOWN — OH
Data last updated: August 31, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| OHIO BELL TEL CO | 9321 | 8 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | 7 |
| T-MOBILE USA, INC. | 6529 | 6 |
| ONVOY, LLC - OH | 464C | 4 |
| LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | 4 |