NumberResearch Membership · Data 09/18/2026

Recent prefix assignments

369 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/18/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Which carriers received which NPA-NXX prefixes, and where. Assignments are initial assignments from NANPA records — because of number portability, the current serving carrier of individual numbers may differ. For finer-grained activity, see the thousands-block view above.

Most active assignees, last 30 days
8X8, INC. 38
ONVOY, LLC - CA 37
NEW CINGULAR WIRELESS PCS, LLC - IL 33
NEW CINGULAR WIRELESS PCS, LLC - DC 30
ONVOY, LLC - TX 18
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-NXXAssigneeOCNRate centerState
989-685 FRONTIER MIDSTATES, INC. - MI 0681 ROSE CITY MI
989-686 MICHIGAN BELL TEL CO 9323 BAY CITY MI
989-687 WOLVERINE TEL. CO. 0738 SANFORD MI
989-689 BRIGHTSPEED OF MICHIGAN, LLC 0702 HOPE MI
989-690 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HUBBARDSTN MI
989-691 MICHIGAN BELL TEL CO 9323 AKRON MI
989-692 MICHIGAN BELL TEL CO 9323 FREELAND MI
989-693 MICHIGAN BELL TEL CO 9323 FAIRGROVE MI
989-695 MICHIGAN BELL TEL CO 9323 FREELAND MI
989-697 MICHIGAN BELL TEL CO 9323 LINWOOD MI
989-698 PAETEC ITEL, LLC 829J MIDLAND MI
989-700 MI
989-701 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WESTBRANCH MI
989-704 ONVOY, LLCV - MI 543C SEBEWAING MI
989-705 FRONTIER NORTH, INC. - MI 0695 GAYLORD MI
989-707 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MAPLE RPD MI
989-708 METROPCS, INC. 5562 MIDLAND MI
989-710 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAYLING MI
989-711 MULTIPLE OCN LISTING MULT XXXXXXXXXX MI
989-714 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SAGINAW MI
989-717 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SAGINAW MI
989-721 PAETEC ITEL, LLC 829J OWOSSO MI
989-722 AMERICAN MESSAGING SERVICES, LLC 9748 BAD AXE MI
989-723 FRONTIER NORTH, INC. - MI 0695 OWOSSO MI
989-724 FRONTIER NORTH, INC. - MI 0695 HARRISVL MI
989-725 FRONTIER NORTH, INC. - MI 0695 OWOSSO MI
989-727 FRONTIER NORTH, INC. - MI 0695 HUBBARD LK MI
989-728 BRIGHTSPEED OF MICHIGAN, LLC 0702 HALE MI
989-729 FRONTIER NORTH, INC. - MI 0695 OWOSSO MI
989-730 AMERICAN MESSAGING SERVICES, LLC 9748 SAGINAW MI
989-731 FRONTIER NORTH, INC. - MI 0695 GAYLORD MI
989-732 FRONTIER NORTH, INC. - MI 0695 GAYLORD MI
989-733 FRONTIER NORTH, INC. - MI 0695 ONAWAY MI
989-734 FRONTIER NORTH, INC. - MI 0695 ROGERSCITY MI
989-735 BRIGHTSPEED OF MICHIGAN, LLC 0702 GLENNIE MI
989-736 FRONTIER NORTH, INC. - MI 0695 LINCOLN MI
989-737 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SAGINAW MI
989-738 BRIGHTSPEED OF MICHIGAN, LLC 0702 PORTAUSTIN MI
989-739 MICHIGAN BELL TEL CO 9323 OSCODA MI
989-742 FRONTIER NORTH, INC. - MI 0695 HILLMAN MI
989-743 FRONTIER NORTH, INC. - MI 0695 OWOSSO MI
989-744 AMERICAN MESSAGING SERVICES, LLC 9748 OWOSSO MI
989-746 MICHIGAN BELL TEL CO 9323 SAGINAW MI
989-747 MICHIGAN BELL TEL CO 9323 OSCODA MI
989-751 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 SAGINAW MI
989-752 MICHIGAN BELL TEL CO 9323 SAGINAW MI
989-753 MICHIGAN BELL TEL CO 9323 SAGINAW MI
989-754 MICHIGAN BELL TEL CO 9323 SAGINAW MI
989-755 MICHIGAN BELL TEL CO 9323 SAGINAW MI
989-756 BRIGHTSPEED OF MICHIGAN, LLC 0702 WHITTEMORE MI

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/18/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.