NumberResearch Membership · Data 09/30/2026

Recent prefix assignments

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

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
Rogers Communications Canada Inc. (Wireless) 46
8X8, INC. 43
NEW CINGULAR WIRELESS PCS, LLC - DC 28
NEW CINGULAR WIRELESS PCS, LLC - IL 23
ONVOY, LLC - CA 19
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
— 434-711 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX VA
— 434-713 2XXX3XXX4XXX5XXX6XXX7XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 DANVILLE VA
— 434-724 8XXX9XXX · 2 holders which blocks → BRIGHTSPEED OF VIRGINIA, LLC 0254 WHITMELL VA
— 434-729 6XXX7XXX9XXX · 2 holders which blocks → BRIGHTSPEED OF VIRGINIA, LLC 0254 BRODNAX VA
— 434-735 1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks → VERIZON SOUTH, INC. - VA (CONTEL) 0233 BARNESVL VA
— 434-736 1XXX4XXX5XXX6XXX7XXX · 5 holders which blocks → VERIZON SOUTH, INC. - VA (CONTEL) 0233 KEYSVILLE VA
— 434-738 1XXX2XXX3XXX4XXX5XXX7XXX8XXX · 4 holders which blocks → VERIZON SOUTH, INC. - VA (CONTEL) 0233 BOYDTON VA
— 434-753 7XXX8XXX · 2 holders which blocks → BRIGHTSPEED OF VIRGINIA, LLC 0254 TURBEVILLE VA
— 434-757 3XXX6XXX · 2 holders which blocks → BRIGHTSPEED OF VIRGINIA, LLC 0254 LA CROSSE VA
— 434-766 3XXX which blocks → VERIZON VIRGINIA, INC. 9213 DANVILLE VA
— 434-767 1XXX8XXX · 2 holders which blocks → BRIGHTSPEED OF VIRGINIA, LLC 0254 BURKEVILLE VA
— 434-770 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 DANVILLE VA
— 434-773 3XXX which blocks → VERIZON VIRGINIA, INC. 9213 DANVILLE VA
— 434-774 none assigned yet which blocks → BRIGHTSPEED OF VIRGINIA, LLC 0254 SOUTH HILL VA
— 434-791 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 DANVILLE VA
— 434-792 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 DANVILLE VA
— 434-793 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 DANVILLE VA
— 434-797 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 DANVILLE VA
— 434-799 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 DANVILLE VA
— 434-804 not yet reported which blocks → VA
— 434-811 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX VA
— 434-812 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → BRIGHTSPEED OF VIRGINIA, LLC 0254 CROZET VA
— 434-813 1XXX6XXX7XXX8XXX which blocks → BRIGHTSPEED OF VIRGINIA, LLC 0254 FORK UNION VA
— 434-817 not yet reported which blocks → LEVEL 3 COMMUNICATIONS, LLC - VA 8825 CHARLOTSVL VA
— 434-821 7XXX8XXX which blocks → VERIZON VIRGINIA, INC. 9213 LYNCHBURG VA
— 434-822 3XXX which blocks → VERIZON VIRGINIA, INC. 9213 DANVILLE VA
— 434-823 none assigned yet which blocks → BRIGHTSPEED OF VIRGINIA, LLC 0254 CROZET VA
— 434-825 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 CHARLOTSVL VA
— 434-826 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 AMHERST VA
— 434-831 6XXX7XXX8XXX · 3 holders which blocks → BRIGHTSPEED OF VIRGINIA, LLC 0254 SCHUYLER VA
— 434-832 9XXX which blocks → VERIZON VIRGINIA, INC. 9213 LYNCHBURG VA
— 434-835 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → VERIZON VIRGINIA, INC. 9213 DANVILLE VA
— 434-836 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 DANVILLE VA
— 434-838 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → UNITED STATES CELLULAR - VA 6283 PROSPECT VA
— 434-841 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 LYNCHBURG VA
— 434-842 8XXX9XXX · 2 holders which blocks → BRIGHTSPEED OF VIRGINIA, LLC 0254 FORK UNION VA
— 434-845 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 LYNCHBURG VA
— 434-846 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 LYNCHBURG VA
— 434-847 9XXX which blocks → VERIZON VIRGINIA, INC. 9213 LYNCHBURG VA
— 434-848 5XXX7XXX · 2 holders which blocks → VERIZON SOUTH, INC. - VA (CONTEL) 0233 LAWRENCEVL VA
— 434-849 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 LYNCHBURG VA
— 434-851 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LYNCHBURG VA
— 434-856 1XXX2XXX6XXX9XXX · 2 holders which blocks → VERIZON VIRGINIA, INC. 9213 LYNCHBURG VA
— 434-857 1XXX2XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - VA 079F DANVILLE VA
— 434-865 1XXX6XXX8XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SOUTH HILL VA
— 434-872 1XXX3XXX9XXX · 2 holders which blocks → BRIGHTSPEED OF VIRGINIA, LLC 0254 CHARLOTSVL VA
— 434-906 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 CHARLOTSVL VA
— 434-907 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 LYNCHBURG VA
— 434-911 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX VA
— 434-917 7XXX8XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SOUTH HILL VA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/30/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.