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
989-215 PAETEC ITEL, LLC 829J OSCODA MI
989-216 PAETEC ITEL, LLC 829J WESTBRANCH MI
989-220 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 SAGINAW MI
989-222 AMERICAN MESSAGING SERVICES, LLC 9748 SAGINAW MI
989-224 FRONTIER NORTH, INC. - MI 0695 ST JOHNS MI
989-227 FRONTIER NORTH, INC. - MI 0695 ST JOHNS MI
989-233 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SAGINAW MI
989-235 BRIGHTSPEED OF MICHIGAN, LLC 0702 CRYSTAL MI
989-236 FRONTIER NORTH, INC. - MI 0695 MIDDLETON MI
989-239 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SAGINAW MI
989-240 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLARE MI
989-245 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 SAGINAW MI
989-246 MICHIGAN BELL TEL CO 9323 GLADWIN MI
989-248 FRONTIER NORTH, INC. - MI 0695 FENWICK MI
989-249 MICHIGAN BELL TEL CO 9323 SAGINAW MI
989-253 SPOK, INC. 6630 SAGINAW MI
989-256 ONVOY, LLCV - MI 543C GLADWIN MI
989-257 BRIGHTSPEED OF MICHIGAN, LLC 0702 SIXTYLAKES MI
989-258 AMERICAN MESSAGING SERVICES, LLC 9748 SAGINAW MI
989-261 BRIGHTSPEED OF MICHIGAN, LLC 0702 VICKERYVL MI
989-268 FRONTIER NORTH, INC. - MI 0695 VESTABURG MI
989-269 MICHIGAN BELL TEL CO 9323 BAD AXE MI
989-271 FRONTIER NORTH, INC. - MI 0695 GAINES MI
989-274 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 SAGINAW MI
989-275 FRONTIER NORTH, INC. - MI 0695 ROSCOMMON MI
989-276 AMERICAN MESSAGING SERVICES, LLC 9748 SAGINAW MI
989-277 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 OWOSSO MI
989-280 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 SAGINAW MI
989-284 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 SAGINAW MI
989-288 FRONTIER NORTH, INC. - MI 0695 DURAND MI
989-289 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 MTPLEASANT MI
989-291 FRONTIER NORTH, INC. - MI 0695 SHERIDAN MI
989-293 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 SAGINAW MI
989-295 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 SAGINAW MI
989-297 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 SAGINAW MI
989-298 MICHIGAN BELL TEL CO 9323 SAGINAW MI
989-302 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 HOUGHTONLK MI
989-305 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 EAST TAWAS MI
989-309 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 REMUS MI
989-310 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EAST TAWAS MI
989-311 MULTIPLE OCN LISTING MULT XXXXXXXXXX MI
989-312 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WESTBRANCH MI
989-314 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 STANDISH MI
989-326 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 SAGINAW MI
989-328 FRONTIER NORTH, INC. - MI 0695 SIDNEY MI
989-330 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 MTPLEASANT MI
989-343 MICHIGAN BELL TEL CO 9323 WESTBRANCH MI
989-344 FRONTIER NORTH, INC. - MI 0695 GRAYLING MI
989-345 MICHIGAN BELL TEL CO 9323 WESTBRANCH MI
989-348 FRONTIER NORTH, INC. - MI 0695 GRAYLING 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.