Recent prefix assignments

2 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 430

PAETEC ITEL, LLC 1

ONVOY, LLC - TX 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

Recent NPA-NXX prefix assignments
Assigned	NPA-NXX	Thousands-blocks taken (last-4 opening)	Code holder	OCN	Rate center	State
2015-04-17	430-590	not yet reported which blocks →	AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX	0132	STREETMAN	TX
2015-04-09	430-216	0–9 XXXall 10 · 6 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	JEWETT	TX
2015-04-06	430-502	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	ATHENS	TX
2015-02-04	430-225	1XXX4XXX5XXX7XXX · 4 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	STREETMAN	TX
2015-01-21	430-213	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	MALAKOFF	TX
2014-12-23	430-212	2XXX7XXX · 2 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	FROST	TX
2014-05-13	430-208	0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TX	6114	DEKALB	TX
2014-05-07	430-215	0–9 XXXall 10 · 4 holders which blocks →	NUSO, LLC	551G	LONGVIEW	TX
2014-04-24	430-206	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	WOLFE CITY	TX
2014-02-03	430-702	0–9 XXXall 10 · 5 holders which blocks →	CSC VOICE, LLC	612K	GLADEWATER	TX
2014-01-31	430-701	0XXX1XXX2XXX3XXX5XXX8XXX · 5 holders which blocks →	CSC VOICE, LLC	612K	HUGHES SPG	TX
2013-09-27	430-703	0–9 XXXall 10 · 7 holders which blocks →	PEERLESS NETWORK OF TEXAS, LLC - TX	177F	WHITEWRGHT	TX
2013-09-27	430-803	0–9 XXXall 10 · 6 holders which blocks →	PEERLESS NETWORK OF TEXAS, LLC - TX	177F	JACKSON	TX
2013-09-27	430-808	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks →	PEERLESS NETWORK OF TEXAS, LLC - TX	177F	LONE OAK	TX
2013-07-29	430-203	0–9 XXXall 10 · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TX	6114	BECKVILLE	TX
2012-11-14	430-562	0–9 XXXall 10 · 4 holders which blocks →	AT&T ENTERPRISES, LLC	516C	ATLANTA	TX
2011-09-23	430-235	0–9 XXXall 10 · 5 holders which blocks →	AT&T ENTERPRISES, LLC	516C	LINDL SWAN	TX
2010-09-22	430-222	0–9 XXXall 10 · 5 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - TX	7148	MTPLEASANT	TX
2010-09-17	430-625	2XXX3XXX4XXX5XXX7XXX8XXX · 3 holders which blocks →	AT&T ENTERPRISES, LLC	516C	LONGVIEW	TX
2010-01-12	430-777	0XXX2XXX3XXX4XXX5XXX7XXX · 5 holders which blocks →	EVOLVE CELLULAR, INC.	139F	TROUP	TX
2010-01-12	430-888	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX · 6 holders which blocks →	EVOLVE CELLULAR, INC.	139F	MONTALBA	TX
2007-02-01	430-241	1XXX2XXX3XXX4XXX7XXX8XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TX	6114	DEADWOOD	TX
2007-01-08	430-200	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	T-MOBILE USA, INC.	6529	TEXARKANA	TX
2004-12-15	430-558	0–9 XXXall 10 · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	LONGVIEW	TX
2004-09-09	430-255	0–9 XXXall 10 · 4 holders which blocks →	PEERLESS NETWORK OF TEXAS, LLC - TX	177F	KEMP	TX
—	430-201	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - TX	903C	LONGVIEW	TX
—	430-207	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	MABANK	TX
—	430-209	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - TX	903C	DEPORT	TX
—	430-211	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	TX
—	430-249	2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	ONVOY, LLC - TX	903C	MTPLEASANT	TX
—	430-273	0XXX1XXX2XXX3XXX8XXX9XXX · 5 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	OAKLAND	TX
—	430-301	not yet reported which blocks →	SOUTHWESTERN BELL	9533	XXXXXXXXXX	TX
—	430-311	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	TX
—	430-340	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	CANTON	TX
—	430-342	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	ATLANTA	TX
—	430-343	0XXX1XXX2XXX4XXX5XXX8XXX9XXX · 6 holders which blocks →	ONVOY, LLC - TX	903C	CELESTE	TX
—	430-411	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	TX
—	430-431	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 8 holders which blocks →	PEERLESS NETWORK OF TEXAS, LLC - TX	177F	WILLSPOINT	TX
—	430-433	0XXX1XXX2XXX4XXX6XXX9XXX · 6 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	COMO	TX
—	430-434	0XXX1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	EMHOUSE	TX
—	430-443	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	ONVOY, LLC - TX	903C	COLLINSVL	TX
—	430-511	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	TX
—	430-555	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	DIR ASST	TX
—	430-611	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	TX
—	430-700	not yet reported which blocks →				TX
—	430-711	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	TX
—	430-811	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	TX
—	430-895	0XXX1XXX3XXX5XXX6XXX7XXX9XXX · 5 holders which blocks →	ONVOY SPECTRUM, LLC	624H	BIRTHRIGHT	TX
—	430-911	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	TX
—	430-950	not yet reported which blocks →				TX

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.