TIFFIN — OH
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| OHIO BELL TEL CO | 9321 | 4 |
| LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | 2 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | 2 |
| BANDWIDTH.COM CLEC, LLC - OH | 001F | 1 |
| ONVOY, LLC - OH | 464C | 1 |