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.
Most active assignees, all time — NPA 208
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2020-03-02 | 208-294 | 1XXX which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | FRUITLAND | ID |
| 2018-11-19 | 208-506 | 0–9 XXXall 10 · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | BOISE | ID |
| 2016-05-05 | 208-519 | 0–9 XXXall 10 · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | BOISE | ID |
| 2015-06-29 | 208-807 | 0–9 XXXall 10 · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | BOISE | ID |
| 2014-10-01 | 208-997 | 0–9 XXXall 10 · 6 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | MOSCOW | ID |
| 2008-05-29 | 208-820 | 0–9 XXXall 10 · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | KAMIAH | ID |
| 2008-05-05 | 208-953 | 0–9 XXXall 10 · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | NEW PLYMTH | ID |
| 2007-01-12 | 208-943 | 0–9 XXXall 10 · 6 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | MT HOME | ID |
| 2006-07-07 | 208-936 | 0–9 XXXall 10 · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | NAMPA | ID |
| 2003-11-26 | 208-514 | 0–9 XXXall 10 · 3 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | BOISE | ID |
| 2002-07-17 | 208-946 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | SANDPOINT | ID |
| 2002-06-19 | 208-806 | 1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | KETCHUM | ID |
| 2002-06-13 | 208-595 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | TWIN FALLS | ID |
| 2002-06-13 | 208-714 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | COERDALENE | ID |
| 2002-06-13 | 208-816 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | LEWISTON | ID |
| 2002-06-13 | 208-904 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | POCATELLO | ID |
| 2002-06-13 | 208-932 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | IDAHOFALLS | ID |
| 2002-06-05 | 208-629 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | BOISE | ID |
| 2002-06-05 | 208-639 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | BOISE | ID |
| 2002-04-09 | 208-881 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | IDAHOFALLS | ID |
| 2002-04-09 | 208-944 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | TWIN FALLS | ID |
| 2002-04-04 | 208-643 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | BLACKFOOT | ID |
| 2002-04-04 | 208-696 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | MT HOME | ID |
| — | 208-297 | 0–9 XXXall 10 · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | BOISE | ID |
| — | 208-417 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | POCATELLO | ID |
| — | 208-419 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | IDAHOFALLS | ID |
| — | 208-449 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | COERDALENE | ID |
| — | 208-635 | 0–9 XXXall 10 · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | HAYDENLAKE | ID |
| — | 208-647 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - ID | 7558 | BURLEY | ID |
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.