TELEPORT COMMUNICATIONS AMERICA, LLC - MD
15 prefixes in 410 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 410-390 | OCEAN CITY | 7325 | 2009-06-10 | Yes |
| 410-423 | COLUMBIA | 7325 | — | — |
| 410-427 | TOWSON | 7325 | — | — |
| 410-510 | FORK | 7325 | — | Yes |
| 410-513 | PARKVILLE | 7325 | — | Yes |
| 410-559 | PIKESVILLE | 7325 | — | Yes |
| 410-564 | ELKRIDGE | 7325 | — | Yes |
| 410-568 | COCKEYSVL | 7325 | — | Yes |
| 410-649 | BALTIMORE | 7325 | — | Yes |
| 410-689 | GLENBURNIE | 7325 | — | Yes |
| 410-776 | BEL AIR | 7325 | — | Yes |
| 410-818 | CATONSVL | 7325 | — | Yes |
| 410-843 | BALTIMORE | 7325 | — | — |
| 410-951 | BALTIMORE | 7325 | — | — |
| 410-972 | ANNAPOLIS | 7325 | — | Yes |
These are initial assignees from NANPA CO-code records — because of number portability, the current serving carrier of individual numbers may differ. Bulk export requires a membership.