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 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
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Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
— 989-895 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 BAY CITY MI
— 989-903 3XXX4XXX7XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 STANDISH MI
— 989-906 8XXX which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SAGINAW MI
— 989-907 1XXX9XXX which blocks → MICHIGAN BELL TEL CO 9323 SAGINAW MI
— 989-909 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SAGINAW MI
— 989-910 not yet reported which blocks → TELNET WORLDWIDE, INC. 817J HOUGHTONLK MI
— 989-911 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX MI
— 989-920 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 SAGINAW MI
— 989-921 not yet reported which blocks → PAETEC ITEL, LLC 829J SAGINAW MI
— 989-922 not yet reported which blocks → PAETEC ITEL, LLC 829J BAY CITY MI
— 989-923 not yet reported which blocks → PAETEC ITEL, LLC 829J MIDLAND MI
— 989-924 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 ALMA MI
— 989-925 not yet reported which blocks → MICHIGAN CENTRAL BROADBAND COMPANY, LLC 785G MANISTE RV MI
— 989-928 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 SAGINAW MI
— 989-929 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 BAY CITY MI
— 989-934 1XXX2XXX3XXX4XXX7XXX8XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROSE CITY MI
— 989-935 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLARE MI
— 989-938 not yet reported which blocks → MICHIGAN CENTRAL BROADBAND COMPANY, LLC 785G GRACE HBR MI
— 989-939 not yet reported which blocks → MICHIGAN CENTRAL BROADBAND COMPANY, LLC 785G CHESTER MI
— 989-941 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MI 6120 MIDLAND MI
— 989-942 2XXX7XXX8XXX · 3 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 WESTBRANCH MI
— 989-943 2XXX3XXX4XXX5XXX7XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MIDDLETON MI
— 989-946 3XXX6XXX7XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J STANDISH MI
— 989-950 not yet reported which blocks → MI
— 989-953 not yet reported which blocks → WINN TELEPHONE COMPANY DBA WINN TELECOM - MI 0127 MTPLEASANT MI
— 989-954 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MTPLEASANT MI
— 989-958 not yet reported which blocks → MI
— 989-959 not yet reported which blocks → MI
— 989-967 0XXX4XXX5XXX6XXX7XXX · 5 holders which blocks → FRONTIER NORTH, INC. - MI 0695 REMUS MI
— 989-968 none assigned yet which blocks → WINN TELEPHONE COMPANY DBA WINN TELECOM - MI 0127 ALMA MI
— 989-971 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SAGINAW MI
— 989-975 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BAD AXE MI
— 989-976 not yet reported which blocks → MI
— 989-977 1XXX4XXX5XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SEBEWAING MI
— 989-979 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 ST JOHNS MI
— 989-981 1XXX7XXX8XXX9XXX · 4 holders which blocks → FRONTIER NORTH, INC. - MI 0695 HUBBARDSTN MI
— 989-983 0XXX5XXX8XXX · 2 holders which blocks → FRONTIER NORTH, INC. - MI 0695 VANDERBILT MI
— 989-984 4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → MICHIGAN BELL TEL CO 9323 EAST TAWAS 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.