NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

371 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)

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 31
NEW CINGULAR WIRELESS PCS, LLC - IL 31
NEW CINGULAR WIRELESS PCS, LLC - DC 30
ONVOY, LLC - NJ 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
765-501 FRONTIER NORTH, INC.. - IN 0772 LAFAYETTE IN
765-502 FRONTIER NORTH, INC.. - IN 0772 LAFAYETTE IN
765-503 FRONTIER NORTH, INC.. - IN 0772 LAFAYETTE IN
765-511 MULTIPLE OCN LISTING MULT XXXXXXXXXX IN
765-515 INDIANA BELL TEL CO INC 9325 NEW CASTLE IN
765-516 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 MARTINSVL IN
765-518 LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 NEW CASTLE IN
765-519 INDIANA BELL TEL CO INC 9325 NEW CASTLE IN
765-521 INDIANA BELL TEL CO INC 9325 NEW CASTLE IN
765-522 COMMUNICATIONS CORP. OF INDIANA 0776 ROACHDALE IN
765-523 FRONTIER COMMUNICATIONS OF THORNTOWN, INC. 0828 CLARKSHILL IN
765-524 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 NEW CASTLE IN
765-525 HOME TEL. CO., INC. 0778 WALDRON IN
765-526 CLAY COUNTRY RURAL TEL COOP DBA ENDEAVOR COMM 0753 MTMERIDIAN IN
765-527 INDIANA BELL TEL CO INC 9325 NEW CASTLE IN
765-528 CLAY COUNTRY RURAL TEL COOP DBA ENDEAVOR COMM 0753 EMINENCE IN
765-529 INDIANA BELL TEL CO INC 9325 NEW CASTLE IN
765-531 HANCOCK RURAL TELEPHONE CORP. DBA NINESTAR CONNECT 0775 MARKLEVL IN
765-532 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 LAFAYETTE IN
765-533 HANCOCK RURAL TELEPHONE CORP. DBA NINESTAR CONNECT 0775 MARKLEVL IN
765-534 BRIGHTSPEED OF INDIANA, LLC 0832 LAPEL IN
765-535 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 LEBANON IN
765-536 INDIANA BELL TEL CO INC 9325 SUMMITVL IN
765-537 INDIANA BELL TEL CO INC 9325 PARAGON IN
765-538 TRI-COUNTY TEL. CO., INC. 0830 ROMNEY IN
765-542 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREENSFORK IN
765-544 INDIANA BELL TEL CO INC 9325 MANILLA IN
765-548 INDIANA BELL TEL CO INC 9325 ROSEDALE IN
765-551 LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 ELWOOD IN
765-552 INDIANA BELL TEL CO INC 9325 ELWOOD IN
765-553 METROPCS, INC. 5562 KOKOMO IN
765-555 MULTIPLE OCN LISTING MULT DIR ASST IN
765-557 INDIANA BELL TEL CO INC 9325 ELWOOD IN
765-558 LEVEL 3 COMMUNICATIONS, LLC - IN 4803 MARTINSVL IN
765-560 TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 BURLINGTON IN
765-562 LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 ROCKVILLE IN
765-563 BRIGHTSPEED OF CENTRAL INDIANA, LLC 0747 BROOKSTON IN
765-564 FRONTIER MIDSTATES, INC. - IN 0831 DELPHI IN
765-565 FRONTIER NORTH, INC.. - IN 0772 CARTHAGE IN
765-566 INDIANA BELL TEL CO INC 9325 BURLINGTON IN
765-567 BRIGHTSPEED OF CENTRAL INDIANA, LLC 0747 BATTLEGRND IN
765-569 INDIANA BELL TEL CO INC 9325 ROCKVILLE IN
765-571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 KNIGHTSTN IN
765-572 WEST POINT TEL. CO., INC. 0837 WEST POINT IN
765-573 TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 MARION IN
765-574 IN
765-581 TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 OTTERBEIN IN
765-582 LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 OTTERBEIN IN
765-583 INDIANA BELL TEL CO INC 9325 OTTERBEIN IN
765-584 FRONTIER NORTH, INC.. - IN 0772 WINCHESTER IN

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.