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 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
2006-01-05	940-312	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	SOUTHWESTERN BELL TELEPHONE COMPANY - TX	7726	DENTON	TX
2005-06-23	940-473	0XXX2XXX3XXX4XXX5XXX6XXX7XXX · 4 holders which blocks →	T-MOBILE USA, INC.	6529	VERNON	TX
2005-05-10	940-443	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	MYRA	TX
2005-04-27	940-233	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	BOWIE	TX
2005-03-14	940-238	not yet reported which blocks →	CHOICE WIRELESS, LC	3533	WICHITAFLS	TX
2005-02-28	940-421	not yet reported which blocks →	SANTA ROSA TELEPHONE COOPERATIVE, INC.	4046	MUNDAY	TX
2004-10-15	940-394	0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	BRIGHTSPEED OF EASTERN TEXAS, INC.	2084	BRIDGEPORT	TX
2004-10-08	940-456	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	GRAHAM	TX
2004-08-13	940-403	0XXX1XXX5XXX8XXX which blocks →	ONVOY, LLC - TX	903C	WICHITAFLS	TX
2004-07-15	940-353	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	MILLSAP	TX
2004-07-14	940-284	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	MYRA	TX
2004-07-14	940-351	2XXX4XXX5XXX8XXX · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	JACKSBORO	TX
2004-06-01	940-210	0–9 XXXall 10 · 3 holders which blocks →	METROPCS, INC.	5562	DECATUR	TX
2004-05-24	940-213	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TX	6114	IOWA PARK	TX
2004-04-19	940-988	not yet reported which blocks →	SANTA ROSA TELEPHONE COOPERATIVE, INC.	4046	ASPERMONT	TX
2004-03-26	940-991	3XXX which blocks →	ONVOY, LLC - TX	903C	WICHITAFLS	TX
2004-03-09	940-282	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	GRAHAM	TX
2004-02-25	940-634	6XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	ROSSTON	TX
2004-02-24	940-882	0–9 XXXwhole prefix which blocks →	T-MOBILE USA, INC.	6529	WICHITAFLS	TX
2003-12-30	940-255	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	DECATUR	TX
2003-11-25	940-234	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	WICHITAFLS	TX
2003-11-10	940-329	2XXX3XXX4XXX5XXX6XXX9XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	PALO PINTO	TX
2003-10-24	940-232	0–9 XXXall 10 · 2 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	WICHITAFLS	TX
2003-10-21	940-221	not yet reported which blocks →	WEB FIRE COMMUNICATIONS, INC. - TX	2985	GRAHAM	TX
2003-10-20	940-244	not yet reported which blocks →	WEB FIRE COMMUNICATIONS, INC. - TX	2985	WICHITAFLS	TX
2003-07-22	940-560	not yet reported which blocks →	CHOICE WIRELESS, LC	3533	GRAHAM	TX
2003-07-09	940-428	not yet reported which blocks →	SANTA ROSA TELEPHONE COOPERATIVE, INC.	4046	KAMAY	TX
2003-05-21	940-366	2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	BOWIE	TX
2003-03-26	940-229	0–9 XXXall 10 · 7 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	JACKSBORO	TX
2003-03-14	940-583	not yet reported which blocks →	SANTA ROSA TELEPHONE COOPERATIVE, INC.	4046	HOLLIDAY	TX
2003-02-11	940-207	2XXX7XXX9XXX · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	ROCHESTER	TX
2002-11-25	940-200	2XXX4XXX7XXX · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	ASPERMONT	TX
2002-11-25	940-203	3XXX which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	MUNDAY	TX
2002-09-16	940-225	not yet reported which blocks →	WEB FIRE COMMUNICATIONS, INC. - TX	2985	VERNON	TX
2002-08-19	940-202	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TX	6114	TIOGA	TX
2002-08-05	940-799	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TX	6114	DECATUR	TX
2002-07-19	940-226	1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TX	6114	CHILDRESS	TX
2002-07-19	940-227	0XXX1XXX2XXX3XXX5XXX7XXX8XXX9XXX · 2 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TX	6114	VERNON	TX
2002-07-19	940-228	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TX	6114	WICHITAFLS	TX
2002-07-16	940-580	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 8 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TX	6114	GAINESVL	TX
2002-03-29	940-468	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 8 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TX	6114	MINERLWLLS	TX
2002-03-25	940-215	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	HENRIETTA	TX
2002-02-14	940-742	not yet reported which blocks →	SANTA ROSA TELEPHONE COOPERATIVE, INC.	4046	ROCHESTER	TX
2002-02-14	940-996	not yet reported which blocks →	SANTA ROSA TELEPHONE COOPERATIVE, INC.	4046	RULE	TX
2002-02-06	940-463	0XXX2XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TX	6114	MINERLWLLS	TX
2002-02-05	940-745	2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	MINERLWLLS	TX
2002-01-02	940-399	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	METROPCS, INC.	5562	DECATUR	TX
2001-12-11	940-577	5XXX6XXX8XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	DECATUR	TX
2001-10-25	940-923	0XXX2XXX which blocks →	T-MOBILE USA, INC.	6529	WICHITAFLS	TX
2001-10-09	940-867	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	WICHITAFLS	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.