NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026
The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2026-01-07 | 413-605 | 0XXX1XXX · 2 holders which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | CHICOPEE | MA |
| 2024-10-31 | 413-580 | 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | CHICOPEE | MA |
| 2023-11-09 | 413-510 | 0–9 XXXall 10 · 5 holders which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | HOLYOKE | MA |
| 2023-09-01 | 413-492 | 0XXX9XXX · 2 holders which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | WARE | MA |
| 2023-07-06 | 413-457 | 0–9 XXXall 10 · 5 holders which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | CHICOPEE | MA |
| 2022-01-27 | 413-479 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 6 holders which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | GREENFIELD | MA |
| 2022-01-13 | 413-472 | 0–9 XXXall 10 · 3 holders which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | HOLYOKE | MA |
| 2021-10-07 | 413-435 | 0–9 XXXall 10 · 3 holders which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | CHICOPEE | MA |
| 2021-06-29 | 413-419 | 0–9 XXXall 10 · 3 holders which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | CHICOPEE | MA |
| 2019-09-12 | 413-321 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | WARE | MA |
| 2015-01-22 | 413-417 | 0–9 XXXall 10 · 4 holders which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | SPRINGFLD | MA |
| 2014-10-14 | 413-409 | 0–9 XXXall 10 · 6 holders which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | HOLYOKE | MA |
| 2014-02-26 | 413-310 | 0–9 XXXall 10 · 3 holders which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | SPRINGFLD | MA |
| 2013-10-16 | 413-317 | 0–9 XXXall 10 · 3 holders which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | SPRINGFLD | MA |
| 2013-03-29 | 413-309 | 0–9 XXXwhole prefix which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | SPRINGFLD | MA |
| — | 413-204 | not yet reported which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | SPRINGFLD | MA |
| — | 413-210 | 4XXX which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | HOLYOKE | MA |
| — | 413-246 | none assigned yet which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | SPRINGFLD | MA |
| — | 413-330 | not yet reported which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | SPRINGFLD | MA |
| — | 413-364 | not yet reported which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | SPRINGFLD | MA |
| — | 413-386 | 0–9 XXXall 10 · 4 holders which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | SPRINGFLD | MA |
| — | 413-433 | not yet reported which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | SPRINGFLD | MA |
| — | 413-829 | 1XXX3XXX5XXX6XXX8XXX · 3 holders which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | GREENFIELD | MA |
| — | 413-847 | 2XXX3XXX4XXX5XXX7XXX8XXX · 2 holders which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | LONGMEADOW | MA |
| — | 413-885 | 7XXX8XXX which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | CHICOPEE | MA |
| — | 413-949 | 2XXX4XXX5XXX7XXX8XXX which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | WILBRAHAM | MA |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.