VERIZON MARYLAND, INC.
510 prefixes in 410 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 410-349 | ANNAPOLIS | 9212 | — | Yes |
| 410-350 | BALTIMORE | 9212 | — | Yes |
| 410-352 | BISHOPVL | 9212 | — | Yes |
| 410-354 | BALTIMORE | 9212 | — | — |
| 410-355 | BALTIMORE | 9212 | — | — |
| 410-356 | PIKESVILLE | 9212 | — | — |
| 410-357 | PARKTON | 9212 | — | Yes |
| 410-358 | BALTIMORE | 9212 | — | — |
| 410-359 | BALTIMORE | 9212 | — | — |
| 410-360 | ARGRGBSNIS | 9212 | — | — |
| 410-361 | BALTIMORE | 9212 | — | Yes |
| 410-362 | BALTIMORE | 9212 | — | — |
| 410-363 | PIKESVILLE | 9212 | — | — |
| 410-364 | HILLSBORO | 9212 | — | Yes |
| 410-366 | BALTIMORE | 9212 | — | — |
| 410-367 | BALTIMORE | 9212 | — | — |
| 410-368 | BALTIMORE | 9212 | — | Yes |
| 410-372 | TOWSON | 9212 | — | Yes |
| 410-374 | HAMPSTEAD | 9212 | — | Yes |
| 410-376 | VIENNA | 9212 | — | Yes |
| 410-377 | TOWSON | 9212 | — | — |
| 410-378 | PT DEPOSIT | 9212 | — | Yes |
| 410-379 | ELKRIDGE | 9212 | — | — |
| 410-381 | COLUMBIA | 9212 | — | — |
| 410-383 | BALTIMORE | 9212 | — | — |
| 410-384 | SEVERNA PK | 9212 | — | Yes |
| 410-385 | BALTIMORE | 9212 | — | — |
| 410-386 | WESTMINSTR | 9212 | — | — |
| 410-388 | SPARROWSPT | 9212 | — | — |
| 410-391 | ESSEX | 9212 | — | — |
| 410-392 | ELKTON | 9212 | — | — |
| 410-393 | BALTIMORE | 9212 | — | — |
| 410-394 | SOLOMONS | 9212 | — | Yes |
| 410-395 | ARBUTUS | 9212 | — | Yes |
| 410-396 | BALTIMORE | 9212 | — | — |
| 410-397 | WINGATE | 9212 | — | Yes |
| 410-398 | ELKTON | 9212 | — | — |
| 410-399 | BEL AIR | 9212 | — | Yes |
| 410-405 | FORK | 9212 | — | Yes |
| 410-407 | ELKRIDGE | 9212 | — | — |
| 410-414 | PRINCEFRCK | 9212 | — | Yes |
| 410-415 | PIKESVILLE | 9212 | — | Yes |
| 410-417 | EDGEWOOD | 9212 | 2007-08-16 | Yes |
| 410-418 | ELLICOTTCY | 9212 | — | — |
| 410-420 | BEL AIR | 9212 | — | Yes |
| 410-421 | SEVERNA PK | 9212 | — | Yes |
| 410-424 | GLENBURNIE | 9212 | — | Yes |
| 410-425 | SMITH IS | 9212 | — | Yes |
| 410-426 | BALTIMORE | 9212 | — | — |
| 410-429 | WORTHINGTN | 9212 | — | Yes |
| 410-431 | SEVERNA PK | 9212 | — | Yes |
| 410-432 | SEVERNA PK | 9212 | — | Yes |
| 410-433 | BALTIMORE | 9212 | — | — |
| 410-435 | BALTIMORE | 9212 | — | — |
| 410-436 | EDGEWOOD | 9212 | — | Yes |
| 410-437 | ARGRGBSNIS | 9212 | — | — |
| 410-438 | SUDLERSVL | 9212 | — | Yes |
| 410-439 | ARGRGBSNIS | 9212 | — | — |
| 410-442 | ELLICOTTCY | 9212 | — | Yes |
| 410-444 | BALTIMORE | 9212 | — | — |
| 410-448 | BALTIMORE | 9212 | — | Yes |
| 410-450 | BALTIMORE | 9212 | — | Yes |
| 410-451 | CROFTON | 9212 | — | — |
| 410-452 | CARDIFF | 9212 | — | Yes |
| 410-453 | TOWSON | 9212 | — | Yes |
| 410-455 | CATONSVL | 9212 | — | — |
| 410-457 | DARLINGTON | 9212 | — | Yes |
| 410-461 | ELLICOTTCY | 9212 | — | — |
| 410-462 | BALTIMORE | 9212 | — | — |
| 410-464 | BALTIMORE | 9212 | — | Yes |
| 410-465 | ELLICOTTCY | 9212 | — | — |
| 410-466 | BALTIMORE | 9212 | — | — |
| 410-467 | BALTIMORE | 9212 | — | — |
| 410-468 | BALTIMORE | 9212 | — | — |
| 410-469 | BALTIMORE | 9212 | — | Yes |
| 410-470 | BALTIMORE | 9212 | 2005-06-28 | Yes |
| 410-471 | ELKRIDGE | 9212 | — | — |
| 410-472 | SPARKSGLNC | 9212 | — | Yes |
| 410-476 | TRAPPE | 9212 | — | Yes |
| 410-477 | SPARROWSPT | 9212 | — | — |
| 410-479 | DENTON | 9212 | — | Yes |
| 410-480 | ELLICOTTCY | 9212 | — | — |
| 410-481 | BALTIMORE | 9212 | — | — |
| 410-482 | GREENSBORO | 9212 | — | Yes |
| 410-483 | BALTIMORE | 9212 | — | Yes |
| 410-484 | PIKESVILLE | 9212 | — | — |
| 410-485 | BALTIMORE | 9212 | — | — |
| 410-486 | PIKESVILLE | 9212 | — | — |
| 410-488 | BALTIMORE | 9212 | — | — |
| 410-489 | GLENWOOD | 9212 | — | Yes |
| 410-494 | TOWSON | 9212 | — | — |
| 410-495 | PRINCEFRCK | 9212 | — | — |
| 410-496 | RANDALLSTN | 9212 | — | — |
| 410-502 | BALTIMORE | 9212 | — | — |
| 410-503 | ELKRIDGE | 9212 | — | — |
| 410-504 | PIKESVILLE | 9212 | — | Yes |
| 410-505 | ELLICOTTCY | 9212 | — | Yes |
| 410-506 | ELKTON | 9212 | — | Yes |
| 410-508 | GLENBURNIE | 9212 | — | Yes |
| 410-512 | TOWSON | 9212 | — | 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.