NumberResearch Membership · Data 09/25/2026

Recent prefix assignments

358 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, last 30 days
8X8, INC. 43
NEW CINGULAR WIRELESS PCS, LLC - DC 31
ONVOY, LLC - CA 27
NEW CINGULAR WIRELESS PCS, LLC - IL 27
ONVOY, LLC - NJ 15
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
— 308-637 not yet reported which blocks → N.E. COLORADO CELLULAR, INC. 6874 SCOTSBLUFF NE
— 308-638 not yet reported which blocks → GREAT PLAINS COMMUNICATIONS, INC. 1577 HAYSPRINGS NE
— 308-639 not yet reported which blocks → CONSOLIDATED TEL. CO. 1532 THEDFORD NE
— 308-640 not yet reported which blocks → N.E. COLORADO CELLULAR, INC. 6874 GOTHENBURG NE
— 308-641 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 SCOTSBLUFF NE
— 308-643 none assigned yet which blocks → CONSOLIDATED TEL. CO. 1532 MERNA NE
— 308-645 none assigned yet which blocks → CONSOLIDATED TEL. CO. 1532 THEDFORD NE
— 308-646 1XXX2XXX3XXX6XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NE 3233 GRAND IS NE
— 308-647 not yet reported which blocks → NEBRASKA CENTRAL TEL. CO. 1574 SHELTON NE
— 308-650 not yet reported which blocks → N.E. COLORADO CELLULAR, INC. 6874 NO PLATTE NE
— 308-651 not yet reported which blocks → N.E. COLORADO CELLULAR, INC. 6874 LEXINGTON NE
— 308-652 not yet reported which blocks → RURAL TEL. SERVICE CO., INC. DBA NEX-TECH 1826 NOWOODRUFF NE
— 308-653 not yet reported which blocks → NEBRASKA CENTRAL TEL. CO. 1574 ERICSON NE
— 308-654 not yet reported which blocks → NORTHEAST NEBRASKA TEL. CO. 1576 BARTLETT NE
— 308-665 0XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → QWEST CORPORATION 9631 CRAWFORD NE
— 308-667 7XXX which blocks → QWEST CORPORATION 9631 CRAWFORD NE
— 308-668 1XXX7XXX · 2 holders which blocks → QWEST CORPORATION 9631 HARRISON NE
— 308-673 not yet reported which blocks → DALTON TEL. CO. 1537 BUSHNELL NE
— 308-682 not yet reported which blocks → DALTON TEL. CO. 1537 DIX NE
— 308-684 not yet reported which blocks → GREAT PLAINS COMMUNICATIONS, INC. 1577 MERRIMAN NE
— 308-687 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX · 5 holders which blocks → QWEST CORPORATION 9631 ST LIBORY NE
— 308-692 not yet reported which blocks → CAMBRIDGE TEL. CO. 1526 BARTLEY NE
— 308-695 not yet reported which blocks → PINPOINT WIRELESS, INC. 4635 MCCOOK NE
— 308-696 not yet reported which blocks → WINDSTREAM COMMUNICATIONS OF THE MIDEWEST INC - NE 7816 NO PLATTE NE
— 308-697 not yet reported which blocks → CAMBRIDGE TEL. CO. 1526 CAMBRIDGE NE
— 308-698 not yet reported which blocks → WINDSTREAM COMMUNICATIONS OF THE MIDEWEST INC - NE 7816 KEARNEY NE
— 308-700 not yet reported which blocks → NE
— 308-711 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NE
— 308-726 none assigned yet which blocks → GLENWOOD NETWORK SERVICES, INC. 1567 KEYSTONE NE
— 308-728 not yet reported which blocks → CITIZENS TELECOM OF NE LLC DBA FRONTIER COM OF NE 1128 ORD NE
— 308-730 4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 ORD NE
— 308-732 not yet reported which blocks → NEBRASKA CENTRAL TEL. CO. 1574 MASON CITY NE
— 308-738 not yet reported which blocks → NEBRASKA CENTRAL TEL. CO. 1574 ASHTON NE
— 308-743 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → QWEST CORPORATION 9631 AXTELL NE
— 308-745 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → QWEST CORPORATION 9631 LOUP CITY NE
— 308-748 not yet reported which blocks → CONSOLIDATED TEL. CO. 1532 THEDFORD NE
— 308-749 not yet reported which blocks → CONSOLIDATED TEL. CO. 1532 MERNA NE
— 308-750 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 ST PAUL NE
— 308-752 7XXX8XXX · 2 holders which blocks → CITIZENS TELECOM OF NE LLC DBA FRONTIER COM OF NE 1128 SUMNER NE
— 308-754 0XXX1XXX2XXX3XXX6XXX · 5 holders which blocks → QWEST CORPORATION 9631 ST PAUL NE
— 308-760 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 ALLIANCE NE
— 308-762 not yet reported which blocks → QWEST CORPORATION 9631 ALLIANCE NE
— 308-763 1XXX8XXX9XXX · 2 holders which blocks → QWEST CORPORATION 9631 ALLIANCE NE
— 308-764 none assigned yet which blocks → CONSOLIDATED TEL. CO. 1532 ARTHUR NE
— 308-772 7XXX which blocks → UNITED TEL CO OF THE WEST DBA CENTURYLINK - NE 4530 OSHKOSH NE
— 308-773 1XXX3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → QWEST CORPORATION 9631 SILVER CRK NE
— 308-775 5XXX6XXX7XXX8XXX · 2 holders which blocks → CITIZENS TELECOM OF NE LLC DBA FRONTIER COM OF NE 1128 BLOOMINGTN NE
— 308-778 1XXX2XXX · 2 holders which blocks → UNITED TEL CO OF THE WEST DBA CENTURYLINK - NE 4530 LEWELLEN NE
— 308-783 8XXX which blocks → UNITED TEL CO OF THE WEST DBA CENTURYLINK - NE 4530 MINATARE NE
— 308-784 not yet reported which blocks → COZAD TEL. CO. 1534 COZAD NE

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.