NumberResearch Membership · Data 09/25/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/25/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

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 808
HAWAIIAN TELCOM, INC. - HI 309
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
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Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
— 808-335 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 LIHUE HI
— 808-337 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 LIHUE HI
— 808-338 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 LIHUE HI
— 808-340 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 XXXXXXXXXX HI
— 808-350 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 XXXXXXXXXX HI
— 808-360 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 XXXXXXXXXX HI
— 808-370 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 XXXXXXXXXX HI
— 808-373 0XXX6XXX which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-377 0XXX4XXX6XXX · 2 holders which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-390 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 XXXXXXXXXX HI
— 808-393 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-394 7XXX which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-395 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-396 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-397 0XXX1XXX3XXX4XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-421 7XXX8XXX9XXX · 2 holders which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-422 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-423 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-424 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-428 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-433 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-438 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 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
— 808-467 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
— 808-483 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
— 808-499 4XXX5XXX7XXX8XXX9XXX which blocks → HAWAIIAN TELCOM, INC. - HI 3100 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
— 808-531 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/25/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.