LEONARDTN — MD
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | 12 |
| VERIZON MARYLAND, INC. | 9212 | 4 |
| BANDWIDTH.COM CLEC, LLC - MD | 071F | 1 |
| IDT AMERICA, CORP. - MD | 228C | 1 |
| CORE COMMUNICATIONS, INC.- MD | 2593 | 1 |