Recent prefix assignments

4 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 254

ONVOY, LLC - TX 4

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
2016-03-17	254-800	0–9 XXXall 10 · 6 holders which blocks →	FOREMOST TELECOMMUNICATIONS CORPORATION - TX	319D	TEMPLE	TX
2016-02-26	254-271	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks →	ONVOY, LLC - TX	903C	EASTLAND	TX
2016-01-13	254-410	0–9 XXXall 10 · 7 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	TEMPLE	TX
2015-12-17	254-720	0–9 XXXall 10 · 5 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	GORDON	TX
2015-07-30	254-407	0XXX2XXX3XXX4XXX7XXX8XXX · 3 holders which blocks →	GRANDE COMMUNICATIONS NETWORKS, INC. - TX	7670	ROGERS	TX
2015-07-28	254-360	0XXX1XXX2XXX3XXX4XXX6XXX8XXX9XXX · 3 holders which blocks →	GRANDE COMMUNICATIONS NETWORKS, INC. - TX	7670	LITTLE RIV	TX
2015-07-28	254-406	0XXX1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	GRANDE COMMUNICATIONS NETWORKS, INC. - TX	7670	FORT HOOD	TX
2015-07-27	254-402	0–9 XXXall 10 · 2 holders which blocks →	GRANDE COMMUNICATIONS NETWORKS, INC. - TX	7670	KILLEEN	TX
2015-07-01	254-268	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks →	VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW	1181	CROSS PL	TX
2015-07-01	254-269	0–9 XXXall 10 · 7 holders which blocks →	VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW	1181	GLEN ROSE	TX
2015-07-01	254-637	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks →	VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW	1163	MOUNT CALM	TX
2015-07-01	254-988	2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks →	VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW	1181	ROSEBUD	TX
2015-06-24	254-401	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - TX	903C	ROSENTHAL	TX
2015-06-10	254-414	0–9 XXXall 10 · 4 holders which blocks →	VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW	1181	LOTT	TX
2015-06-08	254-376	not yet reported which blocks →	AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX	0132	KOSSE	TX
2015-06-08	254-380	not yet reported which blocks →	AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX	0132	THORNTON	TX
2015-05-18	254-330	0–9 XXXall 10 · 4 holders which blocks →	VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW	1163	HUBBARD	TX
2015-04-14	254-727	0–9 XXXall 10 · 6 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	TEMPLE	TX
2015-02-18	254-331	0–9 XXXall 10 · 4 holders which blocks →	VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW	1181	RIESEL	TX
2015-02-04	254-276	0–9 XXXall 10 · 3 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	IRENE	TX
2015-02-04	254-332	0–9 XXXall 10 · 5 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	WHITNEY	TX
2015-02-03	254-615	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	TEAGUE	TX
2015-01-21	254-320	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - TX	903C	MOODY	TX
2014-12-23	254-321	0–9 XXXall 10 · 3 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	BURLINGTON	TX
2014-11-06	254-314	0–9 XXXall 10 · 6 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	TEMPLE	TX
2014-03-27	254-431	0–9 XXXall 10 · 4 holders which blocks →	AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX	0132	STEPHENVL	TX
2014-03-18	254-242	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	CHINA SPG	TX
2014-01-14	254-676	not yet reported which blocks →	AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX	0132	IRENE	TX
2013-12-24	254-496	not yet reported which blocks →	AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX	0132	TURNERSVL	TX
2013-12-24	254-596	not yet reported which blocks →	AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX	0132	CRANFILSGP	TX
2013-08-14	254-312	0–9 XXXall 10 · 4 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	KILLEEN	TX
2013-04-22	254-294	0–9 XXXall 10 · 4 holders which blocks →	AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX	0132	WACO	TX
2013-04-10	254-530	not yet reported which blocks →	AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX	0132	MALONE	TX
2013-04-10	254-626	not yet reported which blocks →	AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX	0132	BYNUM	TX
2013-04-10	254-994	not yet reported which blocks →	AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX	0132	MOUNT CALM	TX
2012-11-14	254-735	0–9 XXXall 10 · 5 holders which blocks →	AT&T ENTERPRISES, LLC	516C	CISCO	TX
2012-10-31	254-301	0–9 XXXall 10 · 4 holders which blocks →	NUSO, LLC	551G	WACO	TX
2012-08-29	254-316	0–9 XXXall 10 · 4 holders which blocks →	SOUTHWESTERN BELL	9533	TEMPLE	TX
2011-09-23	254-263	0–9 XXXall 10 · 4 holders which blocks →	AT&T ENTERPRISES, LLC	516C	REAGAN	TX
2011-09-02	254-374	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	AT&T ENTERPRISES, LLC	516C	GHOLSON	TX
2011-02-22	254-400	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - TX	903C	WACO	TX
2010-11-24	254-300	0–9 XXXall 10 · 4 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	WACO	TX
2010-09-17	254-273	0–9 XXXall 10 · 5 holders which blocks →	AT&T ENTERPRISES, LLC	516C	BARTLETT	TX
2010-09-07	254-999	7XXX8XXX9XXX · 2 holders which blocks →	FOREMOST TELECOMMUNICATIONS CORPORATION - TX	319D	HILLSBORO	TX
2010-05-10	254-257	not yet reported which blocks →	AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX	0132	MAY	TX
2010-05-10	254-641	not yet reported which blocks →	AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX	0132	RISINGSTAR	TX
2010-05-03	254-270	not yet reported which blocks →	AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX	0132	CROSS PL	TX
2010-03-13	254-777	0–9 XXXall 10 · 4 holders which blocks →	FOREMOST TELECOMMUNICATIONS CORPORATION - TX	319D	WACO	TX
2010-01-12	254-283	0–9 XXXall 10 · 7 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - TX	7148	HILLSBORO	TX
2010-01-12	254-444	0–9 XXXall 10 · 3 holders which blocks →	FOREMOST TELECOMMUNICATIONS CORPORATION - TX	319D	BELTON	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.