NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

1 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

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 989
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 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
— 989-738 0XXX which blocks → BRIGHTSPEED OF MICHIGAN, LLC 0702 PORTAUSTIN MI
— 989-739 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 OSCODA MI
— 989-742 1XXX5XXX6XXX9XXX · 4 holders which blocks → FRONTIER NORTH, INC. - MI 0695 HILLMAN MI
— 989-743 0XXX7XXX · 2 holders which blocks → FRONTIER NORTH, INC. - MI 0695 OWOSSO MI
— 989-744 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 OWOSSO MI
— 989-746 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → MICHIGAN BELL TEL CO 9323 SAGINAW MI
— 989-747 1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → MICHIGAN BELL TEL CO 9323 OSCODA MI
— 989-751 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 SAGINAW MI
— 989-752 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 SAGINAW MI
— 989-753 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 SAGINAW MI
— 989-754 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 SAGINAW MI
— 989-755 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 SAGINAW MI
— 989-756 0XXX1XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → BRIGHTSPEED OF MICHIGAN, LLC 0702 WHITTEMORE MI
— 989-757 7XXX8XXX which blocks → MICHIGAN BELL TEL CO 9323 SAGINAW MI
— 989-758 8XXX which blocks → MICHIGAN BELL TEL CO 9323 SAGINAW MI
— 989-759 0XXX9XXX · 2 holders which blocks → MICHIGAN BELL TEL CO 9323 SAGINAW MI
— 989-761 0XXX1XXX2XXX3XXX4XXX · 4 holders which blocks → FRONTIER NORTH, INC. - MI 0695 CLIFFORD MI
— 989-762 0XXX1XXX2XXX3XXX4XXX6XXX7XXX · 6 holders which blocks → FRONTIER NORTH, INC. - MI 0695 MCBRIDES MI
— 989-766 0XXX1XXX3XXX4XXX6XXX7XXX9XXX · 6 holders which blocks → FRONTIER NORTH, INC. - MI 0695 POSEN MI
— 989-770 0XXX1XXX2XXX3XXX6XXX7XXX8XXX · 2 holders which blocks → MICHIGAN BELL TEL CO 9323 SAGINAW MI
— 989-771 6XXX7XXX · 2 holders which blocks → MICHIGAN BELL TEL CO 9323 SAGINAW MI
— 989-772 not yet reported which blocks → FRONTIER NORTH, INC. - MI 0695 MTPLEASANT MI
— 989-773 not yet reported which blocks → FRONTIER NORTH, INC. - MI 0695 MTPLEASANT MI
— 989-774 not yet reported which blocks → FRONTIER NORTH, INC. - MI 0695 MTPLEASANT MI
— 989-775 not yet reported which blocks → FRONTIER NORTH, INC. - MI 0695 MTPLEASANT MI
— 989-776 3XXX which blocks → MICHIGAN BELL TEL CO 9323 SAGINAW MI
— 989-777 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 SAGINAW MI
— 989-779 not yet reported which blocks → FRONTIER NORTH, INC. - MI 0695 MTPLEASANT MI
— 989-781 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 SAGINAW MI
— 989-785 0XXX1XXX7XXX9XXX · 3 holders which blocks → FRONTIER NORTH, INC. - MI 0695 ATLANTA MI
— 989-786 0XXX8XXX · 2 holders which blocks → FRONTIER NORTH, INC. - MI 0695 LEWISTON MI
— 989-790 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 SAGINAW MI
— 989-791 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 SAGINAW MI
— 989-792 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 SAGINAW MI
— 989-793 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 SAGINAW MI
— 989-795 0XXX1XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → WOLVERINE TEL. CO. 0738 FOSTORIA MI
— 989-797 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 SAGINAW MI
— 989-798 9XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 SAGINAW MI
— 989-799 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 SAGINAW MI
— 989-801 7XXX8XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BRECKENRDG MI
— 989-802 1XXX2XXX3XXX4XXX6XXX7XXX9XXX · 4 holders which blocks → MICHIGAN BELL TEL CO 9323 CLARE MI
— 989-807 1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VESTABURG MI
— 989-808 0XXX1XXX2XXX3XXX4XXX6XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROSCOMMON MI
— 989-811 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX MI
— 989-814 2XXX4XXX5XXX6XXX7XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SIX LAKES MI
— 989-818 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAKEVIEW MI
— 989-819 1XXX2XXX3XXX7XXX9XXX · 4 holders which blocks → ONVOY, LLCV - MI 543C CASEVILLE MI
— 989-820 1XXX2XXX3XXX4XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EAST TAWAS MI
— 989-821 1XXX which blocks → FRONTIER NORTH, INC. - MI 0695 HIGGINS LK MI
— 989-822 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BARRYTON MI

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.