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
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Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2005-08-17 765-838 0–9 XXXall 10 · 3 holders which blocks → COMCAST IP PHONE, LLC 318J LAFAYETTE IN
2005-07-22 765-393 0–9 XXXall 10 · 5 holders which blocks → COMCAST IP PHONE, LLC 318J ANDERSON IN
2005-02-14 765-333 3XXX which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN 7440 UNION CITY IN
2004-12-22 765-232 1XXX2XXX3XXX5XXX6XXX7XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 UNION CITY IN
2004-10-20 765-405 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 YORKTOWN IN
2004-10-20 765-444 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 MIDDLETOWN IN
2004-10-12 765-848 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → PAETEC ITEL, LLC 829J GREENCASTL IN
2004-10-04 765-822 1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DELPHI IN
2004-06-24 765-353 3XXX4XXX which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 UNION CITY IN
2004-06-17 765-233 0–9 XXXall 10 · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 ALEXANDRIA IN
2004-03-31 765-387 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 CHESTERFLD IN
2003-10-30 765-373 0XXX1XXX3XXX4XXX8XXX9XXX · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN 7440 RICHMOND IN
2003-10-16 765-388 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NEW CASTLE IN
2003-03-25 765-360 0XXX1XXX2XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 WILKINSON IN
2003-01-03 765-338 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 CONNERSVL IN
2003-01-03 765-624 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 NEW CASTLE IN
2002-10-03 765-613 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 MARION IN
2002-08-22 765-205 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 CLINTON IN
2002-08-22 765-371 0XXX1XXX2XXX4XXX5XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 LAFONTAINE IN
2002-08-22 765-612 2XXX6XXX8XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 CRAWFODSVL IN
2002-08-22 765-633 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 DENVER IN
2002-08-22 765-736 1XXX2XXX4XXX5XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 JAMESTOWN IN
2002-08-19 765-328 0XXX1XXX8XXX9XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 BROOKVILLE IN
2002-08-19 765-334 0XXX8XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 CAMBDG CY IN
2002-08-19 765-377 0XXX1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 8 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 CONNERSVL IN
2002-08-19 765-392 0XXX1XXX2XXX3XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 CARTHAGE IN
2002-08-19 765-530 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 HAGERSTOWN IN
2002-08-19 765-594 0XXX1XXX8XXX9XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 LYNN IN
2002-08-19 765-595 0XXX1XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 WINCHESTER IN
2002-08-19 765-596 6XXX7XXX which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 LIBERTY IN
2002-08-19 765-598 5XXX7XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 RICHMOND IN
2002-08-19 765-740 0XXX2XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 MORRISTOWN IN
2002-08-05 765-267 1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CRAWFODSVL IN
2002-08-05 765-586 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAFAYETTE IN
2002-08-05 765-722 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 9 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 YORKTOWN IN
2002-08-05 765-725 1XXX2XXX3XXX4XXX5XXX6XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FOUNTAINCY IN
2002-08-05 765-753 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RUSSIAVL IN
2002-07-29 765-209 3XXX4XXX5XXX6XXX9XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 DUNKIRK IN
2002-07-25 765-256 3XXX4XXX5XXX6XXX7XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 BLOUNTSVL IN
2002-07-25 765-625 4XXX5XXX6XXX8XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 FARMLAND IN
2002-07-25 765-745 2XXX7XXX8XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 MORRISTOWN IN
2002-06-26 765-577 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 JAMESTOWN IN
2002-05-23 765-318 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MARTINSVL IN
2002-05-23 765-585 6XXX7XXX8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ATTICA IN
2002-05-23 765-592 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROCKVILLE IN
2002-05-23 765-894 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LEBANON IN
2002-05-17 765-891 3XXX4XXX5XXX6XXX7XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 LEBANON IN
2002-05-14 765-576 none assigned yet which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 LYNN IN
2002-05-14 765-578 9XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 REDKEY IN
2002-05-14 765-580 3XXX5XXX7XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 LIBERTY 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.