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 806

8X8, INC. 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
2015-04-06	806-516	0–9 XXXall 10 · 6 holders which blocks →	PAETEC ITEL, LLC	829J	LUBBOCK	TX
2015-02-18	806-509	0XXX5XXX6XXX9XXX · 4 holders which blocks →	VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW	1163	DENVERCITY	TX
2015-02-18	806-515	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks →	VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW	1163	HURLWOOD	TX
2014-10-28	806-306	not yet reported which blocks →	AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX	0132	HARTLEY	TX
2014-05-07	806-503	0–9 XXXall 10 · 5 holders which blocks →	NUSO, LLC	551G	LUBBOCK	TX
2013-10-29	806-453	none assigned yet which blocks →	CEBRIDGE TELECOM TX , L.P. - TX	318C	FARWELL	TX
2013-10-25	806-704	none assigned yet which blocks →	CEBRIDGE TELECOM TX , L.P. - TX	318C	WOODROW	TX
2013-10-24	806-701	0–9 XXXall 10 · 3 holders which blocks →	CEBRIDGE TELECOM TX , L.P. - TX	318C	LUBBOCK	TX
2013-10-24	806-803	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX which blocks →	CEBRIDGE TELECOM TX , L.P. - TX	318C	AMARILLO	TX
2013-08-26	806-309	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	LUBBOCK	TX
2013-03-04	806-502	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	NUSO, LLC	551G	AMARILLO	TX
2013-01-31	806-406	0XXX2XXX3XXX8XXX9XXX · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	BEAN	TX
2012-02-22	806-218	6XXX7XXX8XXX9XXX · 2 holders which blocks →	T-MOBILE USA, INC.	6529	LUBBOCK	TX
2012-02-14	806-490	not yet reported which blocks →	VEXUS	4913	ABERNATHY	TX
2012-01-31	806-208	4XXX which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TX	6114	HEDLEY	TX
2011-09-23	806-307	0–9 XXXall 10 · 6 holders which blocks →	AT&T ENTERPRISES, LLC	516C	SKELLYTOWN	TX
2011-09-12	806-302	0–9 XXXall 10 · 5 holders which blocks →	AT&T ENTERPRISES, LLC	516C	HALECENTER	TX
2011-09-02	806-728	not yet reported which blocks →	VEXUS	4913	SLATON	TX
2011-05-25	806-984	0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 2 holders which blocks →	XIT RURAL TEL. COOP., INC.	2170	COLDWATER	TX
2011-04-11	806-530	not yet reported which blocks →	VEXUS	4913	MEADOW	TX
2011-04-11	806-564	not yet reported which blocks →	VEXUS	4913	ROPESVILLE	TX
2011-04-11	806-636	not yet reported which blocks →	VEXUS	4913	BROWNFIELD	TX
2011-04-11	806-870	not yet reported which blocks →	VEXUS	4913	LAMESA	TX
2011-02-11	806-834	0–9 XXXwhole prefix which blocks →	SOUTHWESTERN BELL	9533	LUBBOCK	TX
2011-01-21	806-485	not yet reported which blocks →	VEXUS	4913	LITTLEFLD	TX
2011-01-21	806-569	not yet reported which blocks →	VEXUS	4913	WHITHARRAL	TX
2010-11-15	806-513	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - TX	903C	AMARILLO	TX
2010-11-04	806-500	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - TX	903C	LUBBOCK	TX
2010-10-19	806-442	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks →	VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW	1163	LEVELLAND	TX
2010-09-07	806-800	0XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	VEXUS	4913	WILSON	TX
2010-08-06	806-400	7XXX9XXX which blocks →	T-MOBILE USA, INC.	6529	AMARILLO	TX
2010-06-21	806-844	0XXX1XXX4XXX8XXX · 3 holders which blocks →	XIT TELECOMMUNICATIONS & TECHNOLOGY, INC. - TX	7893	DALHART	TX
2010-06-17	806-471	0–9 XXXwhole prefix which blocks →	T-MOBILE USA, INC.	6529	AMARILLO	TX
2010-03-12	806-427	not yet reported which blocks →	AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX	0132	WILDORADO	TX
2010-03-04	806-554	not yet reported which blocks →	AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX	0132	HAPPY	TX
2010-02-18	806-448	5XXX6XXX7XXX · 2 holders which blocks →	TERRA NOVA TELECOM INC.	145J	LUBBOCK	TX
2010-01-26	806-431	not yet reported which blocks →	VEXUS	4913	CANYON	TX
2010-01-26	806-521	not yet reported which blocks →	TELNYX LLC	073H	BORGER	TX
2010-01-12	806-303	0XXX1XXX3XXX4XXX5XXX6XXX · 5 holders which blocks →	CEBRIDGE TELECOM TX , L.P. - TX	318C	POST	TX
2010-01-11	806-429	0–9 XXXall 10 · 7 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - TX	7148	PLAINVIEW	TX
2010-01-11	806-464	0–9 XXXall 10 · 5 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - TX	7148	BORGER	TX
2009-11-04	806-475	0–9 XXXall 10 · 5 holders which blocks →	AT&T ENTERPRISES, LLC	516C	FLOYDADA	TX
2009-11-03	806-380	not yet reported which blocks →	AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX	0132	AMARILLO	TX
2009-09-15	806-417	0XXX7XXX · 2 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TX	6114	SMYER	TX
2009-09-10	806-424	0XXX1XXX2XXX3XXX4XXX5XXX6XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TX	6114	HURLWOOD	TX
2009-04-07	806-588	not yet reported which blocks →	VEXUS	4913	HURLWOOD	TX
2009-02-10	806-388	9XXX which blocks →	ONVOY, LLC - TX	903C	PLAINVIEW	TX
2009-02-02	806-437	0–9 XXXall 10 · 3 holders which blocks →	AT&T ENTERPRISES, LLC	516C	AMARILLO	TX
2009-01-05	806-419	0–9 XXXall 10 · 8 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - TX	7148	PAMPA	TX
2008-12-16	806-416	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - TX	903C	LUBBOCK	TX

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.