NumberResearch Membership · Data 09/18/2026

Recent prefix assignments

366 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. 37
ONVOY, LLC - CA 35
NEW CINGULAR WIRELESS PCS, LLC - IL 33
NEW CINGULAR WIRELESS PCS, LLC - DC 27
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
989-848 FRONTIER NORTH, INC. - MI 0695 FAIRVIEW MI
989-854 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MTPLEASANT MI
989-855 FRONTIER NORTH, INC. - MI 0695 MUIR MI
989-856 FRONTIER NORTH, INC. - MI 0695 CASEVILLE MI
989-858 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GAYLORD MI
989-859 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 MIDLAND MI
989-860 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 SAGINAW MI
989-862 FRONTIER NORTH, INC. - MI 0695 ELSIE MI
989-863 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 REESE MI
989-864 FRONTIER NORTH, INC. - MI 0695 MINDENCITY MI
989-865 MICHIGAN BELL TEL CO 9323 ST CHARLES MI
989-866 WINN TEL. CO. 0737 WINN MI
989-867 PIGEON TEL. CO. 0721 TWINING MI
989-868 MICHIGAN BELL TEL CO 9323 REESE MI
989-870 MICHIGAN BELL TEL CO 9323 SAGINAW MI
989-871 WOLVERINE TEL. CO. 0738 MILLINGTON MI
989-872 FRONTIER NORTH, INC. - MI 0695 CASS CITY MI
989-873 FRONTIER MIDSTATES, INC. - MI 0681 PRESCOTT MI
989-874 BRIGHTSPEED OF MICHIGAN, LLC 0702 KINDE MI
989-875 FRONTIER NORTH, INC. - MI 0695 ITHACA MI
989-876 BRIGHTSPEED OF CENTRAL MICHIGAN, INC 0671 AU GRES MI
989-878 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FREELAND MI
989-879 BRIGHTSPEED OF MICHIGAN, LLC 0702 PINCONNING MI
989-883 MICHIGAN BELL TEL CO 9323 SEBEWAING MI
989-889 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAYLING MI
989-890 MICHIGAN BELL TEL CO 9323 SAGINAW MI
989-891 MICHIGAN BELL TEL CO 9323 BAY CITY MI
989-892 MICHIGAN BELL TEL CO 9323 BAY CITY MI
989-893 MICHIGAN BELL TEL CO 9323 BAY CITY MI
989-894 MICHIGAN BELL TEL CO 9323 BAY CITY MI
989-895 MICHIGAN BELL TEL CO 9323 BAY CITY MI
989-903 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 STANDISH MI
989-906 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SAGINAW MI
989-907 MICHIGAN BELL TEL CO 9323 SAGINAW MI
989-909 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SAGINAW MI
989-910 TELNET WORLDWIDE, INC. 817J HOUGHTONLK MI
989-911 MULTIPLE OCN LISTING MULT XXXXXXXXXX MI
989-920 AMERICAN MESSAGING SERVICES, LLC 9748 SAGINAW MI
989-921 PAETEC ITEL, LLC 829J SAGINAW MI
989-922 PAETEC ITEL, LLC 829J BAY CITY MI
989-923 PAETEC ITEL, LLC 829J MIDLAND MI
989-924 AMERICAN MESSAGING SERVICES, LLC 9748 ALMA MI
989-925 MICHIGAN CENTRAL BROADBAND COMPANY, LLC 785G MANISTE RV MI
989-928 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 SAGINAW MI
989-929 AMERICAN MESSAGING SERVICES, LLC 9748 BAY CITY MI
989-934 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROSE CITY MI
989-935 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLARE MI
989-938 MICHIGAN CENTRAL BROADBAND COMPANY, LLC 785G GRACE HBR MI
989-939 MICHIGAN CENTRAL BROADBAND COMPANY, LLC 785G CHESTER MI
989-941 LEVEL 3 COMMUNICATIONS, LLC - MI 6120 MIDLAND 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.