NumberResearch Membership · Data 09/24/2026

Recent prefix assignments

349 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/24/2026

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
— 269-818 4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J HASTINGS MI
— 269-830 3XXX4XXX5XXX7XXX8XXX · 2 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 BATTLE CRK MI
— 269-833 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 KALAMAZOO MI
— 269-838 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 HASTINGS MI
— 269-849 5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → MICHIGAN BELL TEL CO 9323 BENTON HBR MI
— 269-853 not yet reported which blocks → TELNET WORLDWIDE, INC. 4632 DOWAGIAC MI
— 269-857 0XXX9XXX · 2 holders which blocks → FRONTIER NORTH, INC. - MI 0695 SAUGATUCK MI
— 269-864 not yet reported which blocks → TELNET WORLDWIDE, INC. 817J WAYLAND MI
— 269-870 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → MICHIGAN BELL TEL CO 9323 KALAMAZOO MI
— 269-872 0XXX3XXX6XXX · 3 holders which blocks → COMCAST IP PHONE, LLC 318J SOUTHHAVEN MI
— 269-873 4XXX5XXX7XXX8XXX · 2 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 KALAMAZOO MI
— 269-876 3XXX4XXX5XXX8XXX · 3 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 BENTON HBR MI
— 269-903 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E KALAMAZOO MI
— 269-906 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHHAVEN MI
— 269-910 4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 KALAMAZOO MI
— 269-911 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX MI
— 269-912 not yet reported which blocks → TELNET WORLDWIDE, INC. 817J NILES MI
— 269-921 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ST JOSEPH MI
— 269-923 8XXX9XXX · 2 holders which blocks → MICHIGAN BELL TEL CO 9323 BENTON HBR MI
— 269-924 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MI 6120 BATTLE CRK MI
— 269-925 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 BENTON HBR MI
— 269-926 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 BENTON HBR MI
— 269-927 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 BENTON HBR MI
— 269-929 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 KALAMAZOO MI
— 269-930 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ST JOSEPH MI
— 269-932 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MI 6120 ST JOSEPH MI
— 269-934 5XXX which blocks → MICHIGAN BELL TEL CO 9323 BENTON HBR MI
— 269-939 not yet reported which blocks → INDIANA PAGING NETWORK, INC. 6795 NEWBUFFALO MI
— 269-941 3XXX6XXX · 2 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 7157 ALLEGAN MI
— 269-944 6XXX7XXX8XXX9XXX · 3 holders which blocks → MICHIGAN BELL TEL CO 9323 BENTON HBR MI
— 269-945 7XXX which blocks → MICHIGAN BELL TEL CO 9323 HASTINGS MI
— 269-946 not yet reported which blocks → TELNET WORLDWIDE, INC. 4632 STURGIS MI
— 269-947 not yet reported which blocks → MI
— 269-948 6XXX7XXX · 2 holders which blocks → MICHIGAN BELL TEL CO 9323 HASTINGS MI
— 269-950 not yet reported which blocks → MI
— 269-953 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HASTINGS MI
— 269-958 not yet reported which blocks → MI
— 269-959 not yet reported which blocks → MI
— 269-961 1XXX which blocks → MICHIGAN BELL TEL CO 9323 BATTLE CRK MI
— 269-962 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 BATTLE CRK MI
— 269-963 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 BATTLE CRK MI
— 269-964 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 BATTLE CRK MI
— 269-965 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 BATTLE CRK MI
— 269-966 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 BATTLE CRK MI
— 269-967 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 BATTLE CRK MI
— 269-968 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 BATTLE CRK MI
— 269-969 none assigned yet which blocks → MICHIGAN BELL TEL CO 9323 BATTLE CRK MI
— 269-973 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 KALAMAZOO MI
— 269-976 not yet reported which blocks → MI
— 269-978 not yet reported which blocks → PAETEC ITEL, LLC 829J KALAMAZOO MI

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/24/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.