ONONDAGA — MI
Data last updated: August 31, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| FRONTIER MIDSTATES, INC. - MI | 0681 | 1 |
| 123.NET, LLC | 2550 | 1 |
| ACD TELECOM, INC. - MI | 3535 | 1 |
| VOIP INNOVATIONS, LLC | 597F | 1 |
| LEVEL 3 COMMUNICATIONS, LLC - MI | 6120 | 1 |