NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

1 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)

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
Clear Download CSV ↓
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 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.