NumberResearchRecent prefix assignments
341 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/27/2026
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, last 30 days
New assignments by month
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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 808-443 | 1XXX3XXX4XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | LEVEL 3 TELECOM OF HAWAII, LP - HI | 8297 | HILO | HI |
| — | 808-447 | none assigned yet which blocks → | WAVECOM SOLUTIONS CORPORATION - HI | 7454 | HONOLULU | HI |
| — | 808-448 | not yet reported which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | HONOLULU | HI |
| — | 808-449 | not yet reported which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | HONOLULU | HI |
| — | 808-453 | 0XXX which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | HONOLULU | HI |
| — | 808-455 | not yet reported which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | HONOLULU | HI |
| — | 808-456 | not yet reported which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | HONOLULU | HI |
| — | 808-458 | 0–9 XXXall 10 · 6 holders which blocks → | NUSO, LLC | 732J | HONOLULU | HI |
| — | 808-461 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → | WAVECOM SOLUTIONS CORPORATION - HI | 7454 | KAUNAKAKAI | HI |
| — | 808-467 | not yet reported which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | XXXXXXXXXX | HI |
| — | 808-471 | not yet reported which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | HONOLULU | HI |
| — | 808-472 | not yet reported which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | HONOLULU | HI |
| — | 808-473 | not yet reported which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | HONOLULU | HI |
| — | 808-474 | not yet reported which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | HONOLULU | HI |
| — | 808-477 | not yet reported which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | HONOLULU | HI |
| — | 808-478 | none assigned yet which blocks → | T-MOBILE USA, INC. | 6529 | HONOLULU | HI |
| — | 808-479 | none assigned yet which blocks → | T-MOBILE USA, INC. | 6529 | HONOLULU | HI |
| — | 808-483 | 0XXX which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | HONOLULU | HI |
| — | 808-484 | not yet reported which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | HONOLULU | HI |
| — | 808-485 | 7XXX9XXX · 2 holders which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | HONOLULU | HI |
| — | 808-486 | not yet reported which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | HONOLULU | HI |
| — | 808-487 | not yet reported which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | HONOLULU | HI |
| — | 808-488 | not yet reported which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | HONOLULU | HI |
| — | 808-493 | 0–9 XXXall 10 · 4 holders which blocks → | TERRA NOVA TELECOM INC. | 145J | HILO | HI |
| — | 808-497 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HONOLULU | HI |
| — | 808-499 | 4XXX5XXX7XXX8XXX9XXX which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | HONOLULU | HI |
| — | 808-511 | not yet reported which blocks → | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | HI |
| — | 808-520 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX which blocks → | SANDWICH ISLES COMMUNICATIONS, INC. | 3021 | HONOLULU | HI |
| — | 808-521 | not yet reported which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | HONOLULU | HI |
| — | 808-522 | not yet reported which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | HONOLULU | HI |
| — | 808-523 | not yet reported which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | HONOLULU | HI |
| — | 808-524 | not yet reported which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | HONOLULU | HI |
| — | 808-525 | not yet reported which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | HONOLULU | HI |
| — | 808-526 | not yet reported which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | HONOLULU | HI |
| — | 808-527 | not yet reported which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | HONOLULU | HI |
| — | 808-528 | not yet reported which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | HONOLULU | HI |
| — | 808-529 | not yet reported which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | HONOLULU | HI |
| — | 808-530 | not yet reported which blocks → | SPOK, INC. | 6630 | HONOLULU | HI |
| — | 808-531 | not yet reported which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | HONOLULU | HI |
| — | 808-532 | not yet reported which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | HONOLULU | HI |
| — | 808-533 | not yet reported which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | HONOLULU | HI |
| — | 808-534 | not yet reported which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | HONOLULU | HI |
| — | 808-535 | not yet reported which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | HONOLULU | HI |
| — | 808-536 | not yet reported which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | HONOLULU | HI |
| — | 808-537 | not yet reported which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | HONOLULU | HI |
| — | 808-538 | not yet reported which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | HONOLULU | HI |
| — | 808-539 | not yet reported which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | HONOLULU | HI |
| — | 808-540 | not yet reported which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | HONOLULU | HI |
| — | 808-541 | 7XXX which blocks → | HAWAIIAN TELCOM, INC. - HI | 3100 | HONOLULU | HI |
| — | 808-542 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HONOLULU | HI |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/27/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.