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 812
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 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
2012-07-12 812-832 0XXX1XXX2XXX4XXX7XXX8XXX9XXX · 6 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K SCOTTSBURG IN
2012-07-06 812-913 0–9 XXXall 10 · 5 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K NEW ALBANY IN
2012-03-28 812-808 4XXX7XXX8XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J HELTONVL IN
2011-12-09 812-203 0–9 XXXall 10 · 7 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN 7440 PAOLI IN
2011-08-17 812-286 0–9 XXXall 10 · 6 holders which blocks → AT&T ENTERPRISES, LLC 516C NEWWSHNGTN IN
2011-08-12 812-370 0–9 XXXall 10 · 6 holders which blocks → AT&T ENTERPRISES, LLC 516C ST JOSEPH IN
2011-05-31 812-668 0–9 XXXall 10 · 6 holders which blocks → PAETEC ITEL, LLC 829J BLOOMINGTN IN
2011-05-27 812-777 0–9 XXXall 10 · 5 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K EVANSVILLE IN
2011-03-15 812-996 0–9 XXXwhole prefix which blocks → FULLNET ADVANCED COMMUNICATIONS, INC. - IN 068F JASPER IN
2011-03-02 812-807 0–9 XXXall 10 · 4 holders which blocks → AT&T ENTERPRISES, LLC 516C HELTONVL IN
2011-02-22 812-964 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - IN 097D BLOOMINGTN IN
2011-02-17 812-297 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - IN 097D EVANSVILLE IN
2010-12-20 812-800 0–9 XXXall 10 · 5 holders which blocks → PAETEC ITEL, LLC 829J CHARLESTN IN
2010-10-26 812-210 0XXX5XXX · 2 holders which blocks → COMCAST IP PHONE, LLC 318J GOSPORT IN
2010-10-22 812-200 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - IN 105F NASHVILLE IN
2010-10-22 812-300 not yet reported which blocks → COMCAST IP PHONE, LLC 318J ELLETTSVL IN
2010-10-22 812-400 not yet reported which blocks → COMCAST IP PHONE, LLC 318J STANFORD IN
2010-10-22 812-500 not yet reported which blocks → COMCAST IP PHONE, LLC 318J SMITHVILLE IN
2010-10-22 812-600 not yet reported which blocks → COMCAST IP PHONE, LLC 318J LYONS IN
2010-09-17 812-646 0–9 XXXall 10 · 6 holders which blocks → AT&T ENTERPRISES, LLC 516C BOONVILLE IN
2010-04-19 812-772 1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → PERRY-SPENCER COMMUNICATIONS, INC. - IN 5584 TELL CITY IN
2010-01-28 812-531 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BRAZIL IN
2009-12-23 812-728 0–9 XXXall 10 · 3 holders which blocks → AT&T ENTERPRISES, LLC 516C GALENA IN
2009-12-23 812-924 0–9 XXXall 10 · 8 holders which blocks → AT&T ENTERPRISES, LLC 516C NEW ALBANY IN
2009-12-21 812-517 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 VINCENNES IN
2009-12-21 812-706 0–9 XXXall 10 · 7 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 NEWBURGH IN
2009-12-07 812-792 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → AT&T ENTERPRISES, LLC 516C BLOOMFIELD IN
2009-11-03 812-566 0XXX1XXX2XXX3XXX4XXX5XXX6XXX9XXX · 7 holders which blocks → COMCAST IP PHONE, LLC 318J TELL CITY IN
2009-11-02 812-684 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 7 holders which blocks → FULLNET ADVANCED COMMUNICATIONS, INC. - IN 068F HUNTINGBG IN
2009-10-08 812-556 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → FULLNET ADVANCED COMMUNICATIONS, INC. - IN 068F JASPER IN
2008-12-29 812-570 0–9 XXXall 10 · 5 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K SALEM IN
2008-08-27 812-902 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BEDFORD IN
2008-06-13 812-905 0XXX8XXX · 2 holders which blocks → COMCAST IP PHONE, LLC 318J SULLIVAN IN
2008-05-27 812-955 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - IN 105F BLOOMINGTN IN
2008-05-05 812-848 0XXX4XXX8XXX · 2 holders which blocks → PERRY-SPENCER COMMUNICATIONS, INC. - IN 5584 JASPER IN
2008-02-28 812-920 0–9 XXXall 10 · 4 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K NEW ALBANY IN
2007-08-28 812-903 0–9 XXXall 10 · 4 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K GALENA IN
2007-07-02 812-250 0–9 XXXall 10 · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 EVANSVILLE IN
2007-06-14 812-804 0–9 XXXall 10 · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 BEDFORD IN
2007-02-21 812-998 5XXX6XXX8XXX which blocks → PERRY-SPENCER COMMUNICATIONS, INC. - IN 5584 FERDINAND IN
2006-10-30 812-947 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - IN 097D BLOOMINGTN IN
2006-10-24 812-602 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - IN 097D EVANSVILLE IN
2006-06-23 812-919 0–9 XXXall 10 · 9 holders which blocks → BLUERIVER COMMUNICATIONS, INC. - IN 8943 BROWNSTOWN IN
2006-06-23 812-992 0–9 XXXall 10 · 8 holders which blocks → BLUERIVER COMMUNICATIONS, INC. - IN 8943 MITCHELL IN
2006-05-08 812-909 6XXX7XXX8XXX9XXX · 3 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K EVANSVILLE IN
2006-04-20 812-557 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NEW ALBANY IN
2006-04-12 812-676 not yet reported which blocks → SMITHVILLE TELECOM LLC - IN 774D BLOOMINGTN IN
2006-03-01 812-588 not yet reported which blocks → RCN TELECOM SERVICES OF ILLINOIS, LLC 511K CHANDLER IN
2006-03-01 812-715 not yet reported which blocks → RCN TELECOM SERVICES OF ILLINOIS, LLC 511K BOONVILLE IN
2006-01-16 812-965 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 NEWBURGH 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.