DELAWARE — OH
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| FRONTIER NORTH, INC. - OH | 0615 | 5 |
| AERIAL COMMUNICATIONS, INC. | 6701 | 5 |
| LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | 3 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | 3 |
| NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | 2 |