Recent prefix assignments

349 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/24/2026

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

8X8, INC. 43

NEW CINGULAR WIRELESS PCS, LLC - DC 31

ONVOY, LLC - CA 27

NEW CINGULAR WIRELESS PCS, LLC - IL 27

ONVOY, LLC - NJ 15

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
2002-05-20	434-334	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	DANVILLE	VA
2002-05-20	504-234	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	NEWORLEANS	LA
2002-05-20	507-216	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MN	5256	ROCHESTER	MN
2002-05-20	507-589	4XXX5XXX8XXX9XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	AUSTIN	MN
2002-05-20	517-615	1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	VERMONTVL	MI
2002-05-20	561-856	not yet reported which blocks →	METROPCS, INC.	5562	WPALMBEACH	FL
2002-05-20	580-649	0XXX1XXX2XXX3XXX4XXX6XXX7XXX · 3 holders which blocks →	T-MOBILE USA, INC.	6529	ALTUS	OK
2002-05-20	603-760	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - NH	8299	SEABROOK	NH
2002-05-20	603-790	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	BELL ATLANTIC MOBILE, INC	6386	W LEBANON	NH
2002-05-20	603-793	0XXX4XXX5XXX7XXX8XXX · 2 holders which blocks →	METROPCS, INC.	5562	EXETER	NH
2002-05-20	603-836	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	COMCAST IP PHONE, LLC	318J	MANCHESTER	NH
2002-05-20	603-969	none assigned yet which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	PORTSMOUTH	NH
2002-05-20	603-973	0XXX5XXX7XXX which blocks →	METROPCS, INC.	5562	ROCHESTER	NH
2002-05-20	630-862	0–9 XXXall 10 · 3 holders which blocks →	ILLINOIS BELL TEL CO	9329	AURORA	IL
2002-05-20	718-612	4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	NWYRCYZN14	NY
2002-05-20	757-297	7XXX9XXX · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA	6827	NRFOLKZON3	VA
2002-05-20	757-298	2XXX7XXX · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA	6827	NWPTNWSZN3	VA
2002-05-20	786-787	not yet reported which blocks →	DSL INTERNET CORPORATION - FL	9264	NORTH DADE	FL
2002-05-20	786-900	not yet reported which blocks →	DSL INTERNET CORPORATION - FL	9264	HOMESTEAD	FL
2002-05-20	810-643	0–9 XXXall 10 · 7 holders which blocks →	PAETEC ITEL, LLC	829J	MARINECITY	MI
2002-05-20	812-840	4XXX5XXX6XXX · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN	6725	MONROECITY	IN
2002-05-20	812-910	none assigned yet which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN	6725	BICKNELL	IN
2002-05-20	828-334	2XXX3XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	MORGANTON	NC
2002-05-20	904-449	5XXX7XXX8XXX9XXX · 2 holders which blocks →	POWERTEL JACKSONVILLE LICENSES, INC.	7472	ORANGEPARK	FL
2002-05-20	971-248	0–9 XXXall 10 · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - OR	3234	VERNONIA	OR
2002-05-20	989-565	1XXX2XXX4XXX5XXX8XXX9XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	EDMORE	MI
2002-05-20	989-857	1XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	REMUS	MI
2002-05-17	209-496	0XXX1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	MODESTO	CA
2002-05-17	213-725	1XXX2XXX5XXX7XXX8XXX9XXX · 4 holders which blocks →	METROPCS NETWORKS, LLC	899D	LSAN DA 07	CA
2002-05-17	304-817	not yet reported which blocks →	FIBERNET, LLC - WV	4095	BLUEFIELD	WV
2002-05-17	304-818	not yet reported which blocks →	FIBERNET, LLC - WV	4095	PRINCETON	WV
2002-05-17	304-819	not yet reported which blocks →	FIBERNET, LLC - WV	4095	ATHENS	WV
2002-05-17	323-620	not yet reported which blocks →	T-MOBILE USA, INC.	6529	LSAN DA 11	CA
2002-05-17	323-632	none assigned yet which blocks →	METROPCS NETWORKS, LLC	899D	LSAN DA 14	CA
2002-05-17	323-702	not yet reported which blocks →	T-MOBILE USA, INC.	6529	LSAN DA 12	CA
2002-05-17	323-842	not yet reported which blocks →	T-MOBILE USA, INC.	6529	LSAN DA 03	CA
2002-05-17	323-899	not yet reported which blocks →	T-MOBILE USA, INC.	6529	LSAN DA 13	CA
2002-05-17	325-480	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TX	6114	ABILENE	TX
2002-05-17	334-276	0XXX1XXX2XXX3XXX4XXX6XXX8XXX · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL	6804	LAFAYETTE	AL
2002-05-17	361-237	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TX	6114	VICTORIA	TX
2002-05-17	408-802	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	SNJS NORTH	CA
2002-05-17	417-229	4XXX5XXX6XXX8XXX which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO	5814	AURORA	MO
2002-05-17	478-387	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - GA	6116	MILLEDGEVL	GA
2002-05-17	510-754	none assigned yet which blocks →	METROPCS, INC.	5562	HAYWARD	CA
2002-05-17	530-784	1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	WEAVERVL	CA
2002-05-17	559-682	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - CA	8826	CARUTHERS	CA
2002-05-17	559-827	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - CA	8826	VISALIA	CA
2002-05-17	559-862	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - CA	8826	CLOVIS	CA
2002-05-17	626-757	not yet reported which blocks →	T-MOBILE USA, INC.	6529	ALHAMBRA	CA
2002-05-17	670-484	not yet reported which blocks →	GUAM WIRELESS TELEPHONE COMPANY, LLC	4974	SAIPAN	—

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/24/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.