NumberResearch Membership · Data 09/27/2026

Recent prefix assignments

341 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/27/2026

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
8X8, INC. 43
NEW CINGULAR WIRELESS PCS, LLC - DC 26
Rogers Communications Canada Inc. (Wireless) 23
NEW CINGULAR WIRELESS PCS, LLC - IL 22
ONVOY, LLC - CA 21
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
— 808-680 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
— 808-688 3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-689 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-690 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 3 holders which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-691 0XXX9XXX · 2 holders which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-692 0XXX1XXX2XXX3XXX6XXX · 2 holders which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-693 5XXX6XXX which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-695 2XXX3XXX4XXX6XXX which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-696 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-697 2XXX5XXX6XXX which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-699 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-700 not yet reported which blocks → HI
— 808-711 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX HI
— 808-721 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 HONOLULU HI
— 808-722 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 HONOLULU HI
— 808-723 0–9 XXXall 10 · 2 holders which blocks → LEVEL 3 TELECOM OF HAWAII, LP - HI 8297 HONOLULU HI
— 808-731 0–9 XXXall 10 · 5 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K HILO HI
— 808-732 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-733 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-734 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-735 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-737 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-738 2XXX6XXX7XXX · 3 holders which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-739 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-741 not yet reported which blocks → T-MOBILE USA, INC. 6529 HONOLULU HI
— 808-742 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 LIHUE HI
— 808-744 0–9 XXXwhole prefix which blocks → TWC IP ENABLED SERVICES, LLC 793K HONOLULU HI
— 808-753 9XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - HI 6516 HONOLULU HI
— 808-754 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - HI 6516 HONOLULU HI
— 808-760 not yet reported which blocks → SANDWICH ISLES COMMUNICATIONS, INC. 3021 WAILUKU HI
— 808-769 0–9 XXXall 10 · 6 holders which blocks → LEVEL 3 TELECOM OF HAWAII, LP - HI 8297 HILO HI
— 808-772 4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - HI 6516 HONOLULU HI
— 808-775 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HILO HI
— 808-776 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HILO HI
— 808-778 none assigned yet which blocks → T-MOBILE USA, INC. 6529 HONOLULU HI
— 808-779 none assigned yet which blocks → T-MOBILE USA, INC. 6529 HONOLULU HI
— 808-780 0XXX which blocks → T-MOBILE USA, INC. 6529 HONOLULU HI
— 808-781 0XXX which blocks → T-MOBILE USA, INC. 6529 HONOLULU HI
— 808-782 0XXX which blocks → T-MOBILE USA, INC. 6529 HONOLULU HI
— 808-783 0XXX which blocks → T-MOBILE USA, INC. 6529 HONOLULU HI
— 808-791 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-792 not yet reported which blocks → HAWAIIAN TELCOM SERVICES COMPANY, INC. - HI 009G HONOLULU HI
— 808-793 0–9 XXXall 10 · 4 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K WAILUKU 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.