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 765
ONVOY, LLC - IN 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
— 765-548 1XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → INDIANA BELL TEL CO INC 9325 ROSEDALE IN
— 765-551 1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 ELWOOD IN
— 765-552 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 ELWOOD IN
— 765-553 0–9 XXXall 10 · 5 holders which blocks → METROPCS, INC. 5562 KOKOMO IN
— 765-555 not yet reported which blocks → MULTIPLE OCN LISTING MULT DIR ASST IN
— 765-557 1XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → INDIANA BELL TEL CO INC 9325 ELWOOD IN
— 765-558 0XXX1XXX2XXX3XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 MARTINSVL IN
— 765-560 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 BURLINGTON IN
— 765-562 1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 ROCKVILLE IN
— 765-563 1XXX2XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → BRIGHTSPEED OF CENTRAL INDIANA, LLC 0747 BROOKSTON IN
— 765-564 0XXX which blocks → FRONTIER MIDSTATES, INC. - IN 0831 DELPHI IN
— 765-565 0XXX2XXX3XXX4XXX5XXX8XXX · 4 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 CARTHAGE IN
— 765-566 0XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → INDIANA BELL TEL CO INC 9325 BURLINGTON IN
— 765-567 8XXX which blocks → BRIGHTSPEED OF CENTRAL INDIANA, LLC 0747 BATTLEGRND IN
— 765-569 7XXX8XXX which blocks → INDIANA BELL TEL CO INC 9325 ROCKVILLE IN
— 765-571 3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 KNIGHTSTN IN
— 765-572 4XXX5XXX8XXX9XXX · 2 holders which blocks → WEST POINT TEL. CO., INC. 0837 WEST POINT IN
— 765-573 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 MARION IN
— 765-574 not yet reported which blocks → IN
— 765-581 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 OTTERBEIN IN
— 765-582 4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 OTTERBEIN IN
— 765-583 7XXX8XXX which blocks → INDIANA BELL TEL CO INC 9325 OTTERBEIN IN
— 765-584 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 WINCHESTER IN
— 765-587 2XXX3XXX4XXX6XXX8XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J MUNCIE IN
— 765-589 1XXX2XXX4XXX5XXX6XXX9XXX · 4 holders which blocks → INDIANA BELL TEL CO INC 9325 BUCK CREEK IN
— 765-590 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 MARSHALL IN
— 765-591 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 NEW CASTLE IN
— 765-593 1XXX5XXX9XXX · 2 holders which blocks → INDIANA BELL TEL CO INC 9325 NEW CASTLE IN
— 765-597 4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → INDIANA BELL TEL CO INC 9325 MARSHALL IN
— 765-599 0XXX which blocks → INDIANA BELL TEL CO INC 9325 NEW CASTLE IN
— 765-601 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - IN 097D FRANKFORT IN
— 765-602 4XXX5XXX6XXX7XXX8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ANDERSON IN
— 765-605 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FRANKFORT IN
— 765-607 0–9 XXXall 10 · 7 holders which blocks → ONVOY, LLC - IN 097D LAFAYETTE IN
— 765-608 7XXX9XXX · 2 holders which blocks → INDIANA BELL TEL CO INC 9325 ANDERSON IN
— 765-609 0XXX1XXX2XXX7XXX8XXX9XXX · 2 holders which blocks → INDIANA BELL TEL CO INC 9325 ANDERSON IN
— 765-610 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ANDERSON IN
— 765-611 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX IN
— 765-614 1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KOKOMO IN
— 765-617 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ANDERSON IN
— 765-618 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 MARION IN
— 765-619 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 ANDERSON IN
— 765-620 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 ANDERSON IN
— 765-621 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ANDERSON IN
— 765-622 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 ANDERSON IN
— 765-623 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 ANDERSON IN
— 765-626 2XXX3XXX4XXX5XXX6XXX8XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J KOKOMO IN
— 765-627 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 GREENTOWN IN
— 765-628 4XXX8XXX9XXX · 3 holders which blocks → INDIANA BELL TEL CO INC 9325 GREENTOWN IN
— 765-629 1XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 MILROY IN

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.