NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026
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 |
|---|---|---|---|---|---|---|
| 2025-08-26 | 218-775 | 7XXX which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MN | 5256 | BARNESVL | MN |
| 2023-02-01 | 218-588 | 0XXX1XXX2XXX7XXX8XXX · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MN | 5256 | MARBLE | MN |
| 2021-04-12 | 218-592 | 4XXX9XXX · 2 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MN | 5256 | PELICANRPD | MN |
| 2019-06-10 | 218-509 | 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MN | 5256 | MOOSE LAKE | MN |
| 2012-05-02 | 218-215 | 0–9 XXXall 10 · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MN | 5256 | NASHWAUK | MN |
| 2006-09-15 | 218-499 | 0–9 XXXall 10 · 8 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MN | 5256 | CLOQUET | MN |
| 2006-08-02 | 218-646 | 9XXX which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MN | 5256 | MEADOWLNDS | MN |
| 2006-05-31 | 218-447 | 1XXX which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MN | 5256 | CHISHOLM | MN |
| 2006-01-19 | 218-550 | 1XXX2XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MN | 5256 | VIRGINIA | MN |
| 2005-11-01 | 218-406 | 1XXX7XXX · 2 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MN | 5256 | TOFTE | MN |
| 2005-02-08 | 218-433 | 1XXX8XXX9XXX · 3 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MN | 5256 | BENNETTVL | MN |
| 2003-04-30 | 218-468 | none assigned yet which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MN | 5256 | FERGUS FLS | MN |
| 2002-11-13 | 218-257 | not yet reported which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MN | 5256 | BENNETTVL | MN |
| 2002-08-19 | 218-305 | 0XXX1XXX3XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MN | 5256 | VIRGINIA | MN |
| 2002-07-29 | 218-264 | 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 7 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MN | 5256 | GRANDMRAIS | MN |
| 2002-04-29 | 218-260 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MN | 5256 | DULUTH | MN |
| 2002-04-29 | 218-293 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MN | 5256 | HIBBING | MN |
| 2002-04-29 | 218-297 | 0XXX1XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MN | 5256 | BRAINERD | MN |
| 2002-04-29 | 218-303 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MN | 5256 | MOORHEAD | MN |
| 2002-04-29 | 218-321 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MN | 5256 | FERGUS FLS | MN |
| 2002-04-29 | 218-325 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MN | 5256 | DETROITLKS | MN |
| 2002-02-28 | 218-295 | 0XXX1XXX2XXX3XXX4XXX6XXX8XXX9XXX · 6 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MN | 5256 | HIBBING | MN |
| 2001-05-04 | 218-212 | 0–9 XXXall 10 · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MN | 5256 | GRAND RPDS | MN |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.