NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

1 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

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 — NPA 269
NEW CINGULAR WIRELESS PCS, LLC - IL 1
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
Clear Download CSV ↓
Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
— 269-673 not yet reported which blocks → FRONTIER NORTH, INC. - MI 0695 ALLEGAN MI
— 269-674 0XXX1XXX2XXX5XXX6XXX9XXX · 5 holders which blocks → FRONTIER MIDSTATES, INC. - MI 0681 LAWRENCE MI
— 269-679 0XXX1XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → FRONTIER NORTH, INC. - MI 0695 SCHOOLCFT MI
— 269-683 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 NILES MI
— 269-684 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 NILES MI
— 269-685 7XXX which blocks → MICHIGAN BELL TEL CO 9323 PLAINWELL MI
— 269-686 6XXX which blocks → FRONTIER NORTH, INC. - MI 0695 ALLEGAN MI
— 269-687 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 NILES MI
— 269-689 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 STURGIS MI
— 269-692 0XXX1XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → MICHIGAN BELL TEL CO 9323 OTSEGO MI
— 269-694 0XXX1XXX3XXX7XXX · 3 holders which blocks → MICHIGAN BELL TEL CO 9323 OTSEGO MI
— 269-695 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 BUCHANAN MI
— 269-697 1XXX3XXX7XXX9XXX · 3 holders which blocks → MICHIGAN BELL TEL CO 9323 BUCHANAN MI
— 269-699 0XXX1XXX2XXX3XXX4XXX · 4 holders which blocks → FRONTIER NORTH, INC. - MI 0695 EDWARDSBG MI
— 269-700 not yet reported which blocks → MI
— 269-704 not yet reported which blocks → TELNET WORLDWIDE, INC. 817J BATTLE CRK MI
— 269-711 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX MI
— 269-716 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 KALAMAZOO MI
— 269-718 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 THREERIVRS MI
— 269-719 0–9 XXXall 10 · 6 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 BATTLE CRK MI
— 269-720 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 KALAMAZOO MI
— 269-721 not yet reported which blocks → BARRY COUNTY TEL. CO. 0676 BANFIELD MI
— 269-722 3XXX6XXX7XXX · 3 holders which blocks → COMCAST IP PHONE, LLC 318J FENNVILLE MI
— 269-727 5XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J MARSHALL MI
— 269-729 0XXX2XXX3XXX6XXX · 4 holders which blocks → MICHIGAN BELL TEL CO 9323 ATHENS MI
— 269-731 not yet reported which blocks → COMMUNICATIONS CORP. OF MI 0672 AUGUSTA MI
— 269-733 not yet reported which blocks → TELNET WORLDWIDE, INC. 4632 THREERIVRS MI
— 269-734 not yet reported which blocks → MI
— 269-736 2XXX3XXX6XXX7XXX · 4 holders which blocks → TELNET WORLDWIDE, INC. 817J MIDDLEVL MI
— 269-737 1XXX3XXX6XXX · 3 holders which blocks → ONVOY, LLCV - MI 543C OTSEGO MI
— 269-744 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 KALAMAZOO MI
— 269-746 not yet reported which blocks → CLIMAX TEL. CO. 0688 CLIMAX MI
— 269-749 0XXX1XXX5XXX8XXX · 3 holders which blocks → MICHIGAN BELL TEL CO 9323 OLIVET MI
— 269-751 0XXX9XXX · 2 holders which blocks → FRONTIER NORTH, INC. - MI 0695 HAMILTON MI
— 269-756 0XXX1XXX4XXX6XXX8XXX · 5 holders which blocks → MICHIGAN BELL TEL CO 9323 THREE OAKS MI
— 269-757 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BENTON HBR MI
— 269-758 not yet reported which blocks → BARRY COUNTY TEL. CO. 0676 LACEY MI
— 269-759 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 BENTON HBR MI
— 269-763 1XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → MICHIGAN BELL TEL CO 9323 BELLEVUE MI
— 269-764 5XXX6XXX7XXX · 3 holders which blocks → FRONTIER NORTH, INC. - MI 0695 COVERT MI
— 269-768 0XXX1XXX3XXX6XXX · 3 holders which blocks → PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G BELLEVUE MI
— 269-778 0XXX2XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → MICHIGAN BELL TEL CO 9323 FULTON MI
— 269-779 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX · 2 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 KALAMAZOO MI
— 269-781 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 MARSHALL MI
— 269-782 not yet reported which blocks → FRONTIER NORTH, INC. - MI 0695 DOWAGIAC MI
— 269-783 4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → FRONTIER NORTH, INC. - MI 0695 DOWAGIAC MI
— 269-788 2XXX4XXX5XXX7XXX8XXX which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 BATTLE CRK MI
— 269-789 5XXX6XXX · 2 holders which blocks → MICHIGAN BELL TEL CO 9323 MARSHALL MI
— 269-792 5XXX which blocks → MICHIGAN BELL TEL CO 9323 WAYLAND MI
— 269-793 1XXX2XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → MICHIGAN BELL TEL CO 9323 HOPKINS MI

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.