NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

1 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

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, last 30 days — NPA 808
NEW CINGULAR WIRELESS PCS, LLC 1
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
— 808-627 2XXX5XXX which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-628 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-629 7XXX9XXX · 2 holders which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-630 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-632 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 LIHUE HI
— 808-633 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - HI 6516 WAILUKU HI
— 808-634 1XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 LIHUE HI
— 808-635 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 LIHUE HI
— 808-636 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-637 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-638 1XXX2XXX3XXX4XXX · 2 holders which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-639 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 LIHUE HI
— 808-640 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 HILO HI
— 808-641 not yet reported which blocks → SPOK, INC. 6630 HONOLULU HI
— 808-643 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-645 3XXX4XXX5XXX7XXX · 3 holders which blocks → ONVOY, LLC - HI 210H LIHUE HI
— 808-647 1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → T-MOBILE USA, INC. 6529 LIHUE HI
— 808-651 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - HI 6516 LIHUE HI
— 808-652 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - HI 6516 LIHUE HI
— 808-653 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-654 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 LIHUE HI
— 808-655 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-656 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-658 2XXX3XXX4XXX8XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - HI 6516 KAUNAKAKAI HI
— 808-659 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-660 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 KAUNAKAKAI HI
— 808-661 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 WAILUKU HI
— 808-662 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 WAILUKU HI
— 808-664 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-665 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 WAILUKU HI
— 808-667 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 WAILUKU HI
— 808-668 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-669 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 WAILUKU HI
— 808-671 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-672 2XXX which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-673 0XXX1XXX3XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-674 7XXX which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-675 1XXX2XXX3XXX4XXX5XXX6XXX8XXX · 4 holders which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-676 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-677 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-678 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-679 1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-680 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-681 2XXX7XXX9XXX · 2 holders which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-682 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-683 2XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-684 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-685 7XXX which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-686 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-687 0XXX1XXX2XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU 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.