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 940

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
2019-06-04	940-572	not yet reported which blocks →	AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX	0132	RULE	TX
2019-05-31	940-545	0XXX1XXX2XXX3XXX4XXX5XXX7XXX · 3 holders which blocks →	AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX	0132	SEYMOUR	TX
2019-05-31	940-570	0XXX1XXX · 2 holders which blocks →	AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX	0132	MEGARGEL	TX
2019-05-24	940-373	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	JUSTIN	TX
2019-05-23	940-290	0–9 XXXall 10 · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	AUBREY	TX
2019-05-23	940-291	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	GAINESVL	TX
2019-05-14	940-331	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	DENTON	TX
2019-04-18	940-289	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	TIOGA	TX
2019-01-25	940-666	0–9 XXXall 10 · 2 holders which blocks →	FRACTEL, LLC	965H	AUBREY	TX
2018-12-05	940-288	not yet reported which blocks →	SHELCOMM	0051	DENTON	TX
2018-11-09	940-287	0–9 XXXall 10 · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	DENTON	TX
2018-10-29	940-286	0–9 XXXall 10 · 5 holders which blocks →	PEERLESS NETWORK OF TEXAS, LLC - TX	177F	PILOTPOINT	TX
2018-09-10	940-283	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - TX	903C	BURKBURNTT	TX
2018-08-28	940-278	0–9 XXXall 10 · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	JUSTIN	TX
2018-07-03	940-277	0–9 XXXwhole prefix which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	GAINESVL	TX
2018-06-06	940-276	0–9 XXXall 10 · 4 holders which blocks →	VONAGE AMERICA LLC	197D	WICHITAFLS	TX
2018-05-14	940-274	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	MINERLWLLS	TX
2018-04-25	940-259	1XXX5XXX · 2 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TX	6114	BRYSON	TX
2018-03-22	940-253	0–9 XXXall 10 · 6 holders which blocks →	COMCELL, INC. - TX	162J	BOWIE	TX
2018-03-02	940-252	0–9 XXXall 10 · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	DENTON	TX
2018-02-23	940-248	0–9 XXXall 10 · 4 holders which blocks →	EXIANT COMMUNICATIONS LLC	114J	AUBREY	TX
2017-10-03	940-800	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - TX	903C	DENTON	TX
2017-05-25	940-204	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - TX	903C	SANTO	TX
2017-05-25	940-236	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	ONVOY, LLC - TX	903C	ST JO	TX
2016-11-14	940-938	0XXX1XXX3XXX7XXX8XXX9XXX · 4 holders which blocks →	SANTA ROSA TELEPHONE COOPERATIVE, INC.	4046	CHILDRESS	TX
2016-09-20	940-308	0–9 XXXall 10 · 5 holders which blocks →	VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW	1181	KAMAY	TX
2016-08-15	940-313	3XXX6XXX9XXX · 3 holders which blocks →	VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW	1163	MUNDAY	TX
2016-08-15	940-316	1XXX6XXX9XXX · 3 holders which blocks →	VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW	1163	KNOX CITY	TX
2016-08-15	940-401	1XXX2XXX4XXX9XXX · 2 holders which blocks →	VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW	1163	HOLLIDAY	TX
2016-08-15	940-402	1XXX9XXX · 2 holders which blocks →	VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW	1163	HASKELL	TX
2016-08-03	940-762	7XXX8XXX9XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	WOODSON	TX
2016-07-25	940-317	0–9 XXXall 10 · 3 holders which blocks →	VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW	1163	SEYMOUR	TX
2016-07-15	940-314	0–9 XXXall 10 · 3 holders which blocks →	TEXAS WINDSTREAM, LLC	2153	NOCONA	TX
2016-03-29	940-514	0–9 XXXall 10 · 6 holders which blocks →	CHARTER IP ENABLED SERVICES, LLC	792K	DENTON	TX
2016-03-23	940-310	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	ONVOY, LLC - TX	903C	TIOGA	TX
2016-03-17	940-304	0–9 XXXall 10 · 8 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	DENTON	TX
2015-10-28	940-307	0–9 XXXwhole prefix which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	DENTON	TX
2015-04-27	940-251	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TX	6114	PSMKNGDMLK	TX
2015-04-27	940-260	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TX	6114	GRAFORD	TX
2015-01-20	940-208	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	DENTON	TX
2015-01-16	940-315	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	DENTON	TX
2014-09-29	940-303	0XXX3XXX9XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	ELBERT	TX
2014-05-13	940-978	2XXX3XXX4XXX9XXX · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TX	6114	RUNAWAYBAY	TX
2013-11-04	940-301	0–9 XXXall 10 · 7 holders which blocks →	CSC VOICE, LLC	612K	GAINESVL	TX
2013-11-04	940-302	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	CSC VOICE, LLC	612K	SANGER	TX
2013-10-25	940-703	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	DENTON	TX
2013-05-02	940-618	not yet reported which blocks →	CHOICE WIRELESS, LC	3533	WICHITAFLS	TX
2013-05-02	940-621	not yet reported which blocks →	CHOICE WIRELESS, LC	3533	BURKBURNTT	TX
2013-05-02	940-623	not yet reported which blocks →	CHOICE WIRELESS, LC	3533	BOWIE	TX
2013-05-02	940-625	not yet reported which blocks →	CHOICE WIRELESS, LC	3533	HENRIETTA	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.