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 |
|---|---|---|---|---|---|---|
| 2015-04-14 | 808-307 | 0–9 XXXwhole prefix which blocks → | LEVEL 3 TELECOM OF HAWAII, LP - HI | 8297 | HONOLULU | HI |
| 2015-03-26 | 808-763 | 0–9 XXXall 10 · 2 holders which blocks → | LEVEL 3 TELECOM OF HAWAII, LP - HI | 8297 | HONOLULU | HI |
| 2013-02-20 | 808-305 | 0–9 XXXwhole prefix which blocks → | LEVEL 3 TELECOM OF HAWAII, LP - HI | 8297 | HONOLULU | HI |
| 2012-11-20 | 808-462 | 0–9 XXXall 10 · 4 holders which blocks → | LEVEL 3 TELECOM OF HAWAII, LP - HI | 8297 | HONOLULU | HI |
| 2012-05-11 | 808-364 | 0–9 XXXall 10 · 2 holders which blocks → | LEVEL 3 TELECOM OF HAWAII, LP - HI | 8297 | HONOLULU | HI |
| 2011-12-19 | 808-312 | 0–9 XXXall 10 · 3 holders which blocks → | LEVEL 3 TELECOM OF HAWAII, LP - HI | 8297 | HONOLULU | HI |
| 2009-10-07 | 808-238 | 0–9 XXXall 10 · 5 holders which blocks → | LEVEL 3 TELECOM OF HAWAII, LP - HI | 8297 | HILO | HI |
| 2006-10-17 | 808-694 | 0–9 XXXall 10 · 2 holders which blocks → | LEVEL 3 TELECOM OF HAWAII, LP - HI | 8297 | HONOLULU | HI |
| 2004-08-17 | 808-203 | 0–9 XXXall 10 · 2 holders which blocks → | LEVEL 3 TELECOM OF HAWAII, LP - HI | 8297 | HONOLULU | HI |
| 2003-01-31 | 808-768 | none assigned yet which blocks → | LEVEL 3 TELECOM OF HAWAII, LP - HI | 8297 | HONOLULU | HI |
| 2003-01-28 | 808-854 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | LEVEL 3 TELECOM OF HAWAII, LP - HI | 8297 | HILO | HI |
| 2003-01-28 | 808-855 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → | LEVEL 3 TELECOM OF HAWAII, LP - HI | 8297 | LIHUE | HI |
| 2003-01-28 | 808-856 | 0XXX1XXX3XXX4XXX5XXX6XXX9XXX · 3 holders which blocks → | LEVEL 3 TELECOM OF HAWAII, LP - HI | 8297 | WAILUKU | HI |
| 2002-08-06 | 808-748 | 1XXX8XXX9XXX · 2 holders which blocks → | LEVEL 3 TELECOM OF HAWAII, LP - HI | 8297 | HONOLULU | HI |
| 2002-06-07 | 808-482 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | LEVEL 3 TELECOM OF HAWAII, LP - HI | 8297 | LIHUE | HI |
| 2001-10-03 | 808-356 | 9XXX which blocks → | LEVEL 3 TELECOM OF HAWAII, LP - HI | 8297 | HONOLULU | HI |
| — | 808-432 | not yet reported which blocks → | LEVEL 3 TELECOM OF HAWAII, LP - HI | 8297 | HONOLULU | HI |
| — | 808-440 | not yet reported which blocks → | LEVEL 3 TELECOM OF HAWAII, LP - HI | 8297 | HONOLULU | HI |
| — | 808-441 | not yet reported which blocks → | LEVEL 3 TELECOM OF HAWAII, LP - HI | 8297 | HONOLULU | HI |
| — | 808-442 | 2XXX6XXX7XXX8XXX · 3 holders which blocks → | LEVEL 3 TELECOM OF HAWAII, LP - HI | 8297 | WAILUKU | HI |
| — | 808-443 | 1XXX3XXX4XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | LEVEL 3 TELECOM OF HAWAII, LP - HI | 8297 | HILO | HI |
| — | 808-564 | not yet reported which blocks → | LEVEL 3 TELECOM OF HAWAII, LP - HI | 8297 | HONOLULU | HI |
| — | 808-723 | 0–9 XXXall 10 · 2 holders which blocks → | LEVEL 3 TELECOM OF HAWAII, LP - HI | 8297 | HONOLULU | HI |
| — | 808-769 | 0–9 XXXall 10 · 6 holders which blocks → | LEVEL 3 TELECOM OF HAWAII, LP - HI | 8297 | HILO | HI |
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.