DOVER — DE
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| VERIZON DELAWARE, INC. | 9210 | 14 |
| OMNIPOINT COMMUNICATIONS ENTERPRISES, LP | 6626 | 13 |
| LEVEL 3 COMMUNICATIONS, LLC - DE | 4801 | 5 |
| NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | 3 |
| BANDWIDTH.COM CLEC, LLC - DE | 073F | 2 |