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
— 308-785 0XXX1XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks → QWEST CORPORATION 9631 ELWOOD NE
— 308-787 none assigned yet which blocks → UNITED TEL CO OF THE WEST DBA CENTURYLINK - NE 4530 LYMAN NE
— 308-789 not yet reported which blocks → NEBRASKA CENTRAL TEL. CO. 1574 ARCADIA NE
— 308-795 not yet reported which blocks → GREAT PLAINS COMMUNICATIONS, INC. 1577 ARCHER NE
— 308-799 not yet reported which blocks → CITIZENS TELECOM OF NE LLC DBA FRONTIER COM OF NE 1128 REPUBLCNCY NE
— 308-811 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NE
— 308-824 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → QWEST CORPORATION 9631 OXFORD NE
— 308-826 7XXX which blocks → CITIZENS TELECOM OF NE LLC DBA FRONTIER COM OF NE 1128 AMHERST NE
— 308-830 4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 MINDEN NE
— 308-832 4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → QWEST CORPORATION 9631 MINDEN NE
— 308-834 not yet reported which blocks → CONSOLIDATED TEL. CO. 1532 THEDFORD NE
— 308-836 not yet reported which blocks → GREAT PLAINS COMMUNICATIONS, INC. 1577 CALLAWAY NE
— 308-848 not yet reported which blocks → GREAT PLAINS COMMUNICATIONS, INC. 1577 ARNOLD NE
— 308-850 2XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 GRAND IS NE
— 308-856 1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → QWEST CORPORATION 9631 ELM CREEK NE
— 308-858 not yet reported which blocks → GREAT PLAINS COMMUNICATIONS, INC. 1577 OCONTO NE
— 308-859 not yet reported which blocks → RURAL TEL. SERVICE CO., INC. DBA NEX-TECH 1826 NO LONG IS NE
— 308-862 not yet reported which blocks → GOLDEN WEST TEL COOP INC DBA GOLDEN WEST TELECOMM 1659 WHITECLAY NE
— 308-863 not yet reported which blocks → NEBRASKA CENTRAL TEL. CO. 1574 ELBA NE
— 308-865 not yet reported which blocks → CITIZENS TELECOM OF NE LLC DBA FRONTIER COM OF NE 1128 KEARNEY NE
— 308-868 not yet reported which blocks → CITIZENS TELECOM OF NE LLC DBA FRONTIER COM OF NE 1128 STAMFORD NE
— 308-870 7XXX8XXX9XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 BROKEN BOW NE
— 308-872 1XXX7XXX9XXX · 2 holders which blocks → QWEST CORPORATION 9631 BROKEN BOW NE
— 308-874 none assigned yet which blocks → UNITED TEL CO OF THE WEST DBA CENTURYLINK - NE 4530 CHAPPELL NE
— 308-876 not yet reported which blocks → ARAPAHOE TEL. CO. 1516 LOOMIS NE
— 308-879 8XXX which blocks → UNITED TEL CO OF THE WEST DBA CENTURYLINK - NE 4530 POTTER NE
— 308-880 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → UNITED STATES CELLULAR - NE 6263 BROKEN BOW NE
— 308-882 none assigned yet which blocks → GREAT PLAINS COMMUNICATIONS, INC. 1577 IMPERIAL NE
— 308-884 not yet reported which blocks → DALTON TEL. CO. 1537 GURLEY NE
— 308-889 2XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → QWEST CORPORATION 9631 BIGSPRINGS NE
— 308-893 6XXX8XXX · 2 holders which blocks → CITIZENS TELECOM OF NE LLC DBA FRONTIER COM OF NE 1128 RIVERDALE NE
— 308-894 not yet reported which blocks → CITIZENS TELECOM OF NE LLC DBA FRONTIER COM OF NE 1128 PALMER NE
— 308-895 not yet reported which blocks → HARTMAN TEL. EXCH., INC. 1557 DANBURY NE
— 308-911 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NE
— 308-920 4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 ALMA NE
— 308-927 not yet reported which blocks → CITIZENS TELECOM OF NE LLC DBA FRONTIER COM OF NE 1128 EDISON NE
— 308-928 not yet reported which blocks → CITIZENS TELECOM OF NE LLC DBA FRONTIER COM OF NE 1128 ALMA NE
— 308-930 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → UNITED STATES CELLULAR - NE 6263 GRAND IS NE
— 308-935 not yet reported which blocks → NEBRASKA CENTRAL TEL. CO. 1574 ANSLEY NE
— 308-938 not yet reported which blocks → CITIZENS TELECOM OF NE LLC DBA FRONTIER COM OF NE 1128 HILDRETH NE
— 308-940 4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 CENTRAL CY NE
— 308-942 not yet reported which blocks → NEBRASKA CENTRAL TEL. CO. 1574 TAYLOR NE
— 308-946 7XXX8XXX · 2 holders which blocks → QWEST CORPORATION 9631 CENTRAL CY NE
— 308-947 not yet reported which blocks → N.E. COLORADO CELLULAR, INC. 6874 CENTRAL CY NE
— 308-950 not yet reported which blocks → NE
— 308-958 not yet reported which blocks → NE
— 308-959 not yet reported which blocks → NE
— 308-962 not yet reported which blocks → ARAPAHOE TEL. CO. 1516 ARAPAHOE NE
— 308-963 not yet reported which blocks → CONSOLIDATED TELCO, INC. 1530 WELLFLEET NE
— 308-968 not yet reported which blocks → GREAT PLAINS COMMUNICATIONS, INC. 1577 COTESFIELD 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.