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 830

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
2015-06-04	830-310	0–9 XXXall 10 · 5 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	NEWBRANFLS	TX
2015-04-28	830-321	0–9 XXXall 10 · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	FLORESVL	TX
2015-02-09	830-407	0–9 XXXall 10 · 7 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	UVALDE	TX
2015-02-02	830-498	0–9 XXXall 10 · 6 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	EAGLE PASS	TX
2014-10-21	830-312	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	NEWBRANFLS	TX
2014-07-15	830-309	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	DEL RIO	TX
2014-07-11	830-308	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	DEL RIO	TX
2014-05-27	830-240	0–9 XXXall 10 · 6 holders which blocks →	PEERLESS NETWORK OF TEXAS, LLC - TX	177F	CARRIZOSPG	TX
2013-04-27	830-243	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	SEGUIN	TX
2013-04-01	830-213	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	EAGLE PASS	TX
2013-01-11	830-212	0–9 XXXall 10 · 6 holders which blocks →	STPCS JOINT VENTURE, LLC	4290	DEL RIO	TX
2012-03-26	830-770	0XXX1XXX6XXX7XXX8XXX · 3 holders which blocks →	VTX COMMUNICATIONS, LLC	776A	JOURDANTON	TX
2012-03-26	830-771	0XXX2XXX3XXX7XXX8XXX9XXX · 4 holders which blocks →	VTX COMMUNICATIONS, LLC	776A	CHARLOTTE	TX
2011-09-28	830-304	not yet reported which blocks →	HILL COUNTRY TELECOMMUNICATIONS, LLC - TX	413F	FREDECKSBG	TX
2011-09-19	830-302	0–9 XXXall 10 · 8 holders which blocks →	AT&T ENTERPRISES, LLC	516C	NEWBRANFLS	TX
2011-05-24	830-282	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	DEL RIO	TX
2011-05-10	830-499	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	ASHERTON	TX
2011-03-18	830-319	0–9 XXXall 10 · 6 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	EAGLE PASS	TX
2010-06-17	830-383	0–9 XXXall 10 · 6 holders which blocks →	T-MOBILE USA, INC.	6529	FREDECKSBG	TX
2010-06-16	830-353	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	KERRVILLE	TX
2010-05-11	830-341	0–9 XXXall 10 · 6 holders which blocks →	ONVOY, LLC - TX	903C	PLEASANTON	TX
2010-01-12	830-666	0XXX1XXX2XXX3XXX5XXX6XXX8XXX · 4 holders which blocks →	FOREMOST TELECOMMUNICATIONS CORPORATION - TX	319D	SEGUIN	TX
2010-01-12	830-667	7XXX8XXX · 2 holders which blocks →	EVOLVE CELLULAR, INC.	139F	FOWLERTON	TX
2010-01-11	830-335	0–9 XXXall 10 · 4 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - TX	7138	EAGLE PASS	TX
2009-04-13	830-315	not yet reported which blocks →	HILL COUNTRY TELECOMMUNICATIONS, LLC - TX	413F	KERRVILLE	TX
2009-02-19	830-955	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	KERRVILLE	TX
2009-02-12	830-307	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	FREDECKSBG	TX
2008-12-11	830-358	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	NEWBRANFLS	TX
2008-07-16	830-328	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	BANDERA	TX
2008-07-10	830-967	4XXX5XXX6XXX7XXX · 4 holders which blocks →	EVOLVE CELLULAR, INC.	139F	WAELDER	TX
2008-06-25	830-888	0–9 XXXall 10 · 5 holders which blocks →	EVOLVE CELLULAR, INC.	139F	GONZALES	TX
2008-02-07	830-339	2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	GONZALES	TX
2007-07-13	830-890	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	KERRVILLE	TX
2007-07-12	830-333	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	UVALDE	TX
2007-06-27	830-387	0–9 XXXall 10 · 6 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - TX	7148	NEWBRANFLS	TX
2007-06-12	830-963	not yet reported which blocks →	VTX COMMUNICATIONS, LLC	776A	DILLEY	TX
2007-04-05	830-368	0–9 XXXall 10 · 8 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	BALCONES	TX
2007-03-08	830-777	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	KERRVILLE	TX
2007-01-05	830-201	0–9 XXXall 10 · 7 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	MARBLE FLS	TX
2006-08-25	830-637	0–9 XXXall 10 · 8 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	MARBLE FLS	TX
2006-07-24	830-928	6XXX7XXX8XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	KERRVILLE	TX
2006-07-12	830-573	3XXX7XXX9XXX · 3 holders which blocks →	ONVOY, LLC - TX	903C	BRACKETTVL	TX
2006-04-24	830-834	1XXX2XXX9XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	ROCKSPRIGS	TX
2006-01-16	830-325	0–9 XXXall 10 · 2 holders which blocks →	AT&T ENTERPRISES, LLC	516C	EAGLE PASS	TX
2006-01-06	830-837	0–9 XXXall 10 · 4 holders which blocks →	AT&T ENTERPRISES, LLC	516C	NEWBRANFLS	TX
2005-09-12	830-733	0–9 XXXall 10 · 8 holders which blocks →	WINDSTREAM COMMUNICATIONS TELECOM, L.P. - TX	1997	FREDECKSBG	TX
2005-08-16	830-496	3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	KERRVILLE	TX
2005-02-17	830-448	0–9 XXXall 10 · 7 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	CRYSTAL CY	TX
2004-09-07	830-331	0–9 XXXall 10 · 5 holders which blocks →	GUADALUPE VALLEY COMMUNICATIONS SYSTEMS, LP - TX	9872	BOERNE	TX
2004-03-09	830-351	0–9 XXXall 10 · 7 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	LULING	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.