LEVEL 3 TELECOM OF MARYLAND, LLC - MD
11 prefixes in 410 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 410-369 | BALTIMORE | 7591 | — | Yes |
| 410-565 | ARBUTUS | 7591 | — | Yes |
| 410-589 | BRYNPKLNCM | 7591 | — | Yes |
| 410-595 | GLENBURNIE | 7591 | — | Yes |
| 410-680 | ELLICOTTCY | 7591 | — | Yes |
| 410-717 | ELKRIDGE | 7591 | — | Yes |
| 410-794 | COLUMBIA | 7591 | — | Yes |
| 410-807 | CATONSVL | 7591 | — | Yes |
| 410-824 | WATERLO236 | 7591 | — | Yes |
| 410-921 | SEVERN | 7591 | — | Yes |
| 410-927 | ODENTON | 7591 | — | 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.