BRANDYWINE — MD
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | 2 |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | 2 |
| VERIZON MARYLAND, INC. | 9212 | 2 |
| METROPCS, INC. | 5562 | 1 |
| PEERLESS NETWORK OF MARYLAND, LLC | 568G | 1 |