Recent prefix assignments

7 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 856

ONVOY, LLC - NJ 6

NEW CINGULAR WIRELESS PCS, LLC - DC 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
2012-08-24	856-407	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX which blocks →	PEERLESS NETWORK OF NEW JERSEY, LLC - NJ	264F	PAULSBORO	NJ
2012-08-08	856-402	0–9 XXXall 10 · 4 holders which blocks →	AT&T - LOCAL	7421	BEAVER BRK	NJ
2012-06-07	856-888	0–9 XXXall 10 · 4 holders which blocks →	PEERLESS NETWORK OF NEW JERSEY, LLC - NJ	264F	HADDONFLD	NJ
2012-05-14	856-320	0–9 XXXall 10 · 5 holders which blocks →	COMCAST IP PHONE, LLC	318J	MERCHANTVL	NJ
2012-03-01	856-777	0–9 XXXall 10 · 6 holders which blocks →	PEERLESS NETWORK OF NEW JERSEY, LLC - NJ	264F	VINELAND	NJ
2011-12-28	856-333	0–9 XXXall 10 · 2 holders which blocks →	COMCAST IP PHONE, LLC	318J	MERCHANTVL	NJ
2011-11-28	856-281	0–9 XXXall 10 · 6 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ	6391	HADDONFLD	NJ
2011-07-05	856-434	0–9 XXXall 10 · 6 holders which blocks →	OMNIPOINT COMMUNICATIONS ENTERPRISES, LP	6626	MULLICA HL	NJ
2011-06-30	856-352	0–9 XXXall 10 · 6 holders which blocks →	COMCAST IP PHONE, LLC	318J	BLACKWOOD	NJ
2011-06-30	856-516	0–9 XXXall 10 · 4 holders which blocks →	COMCAST IP PHONE, LLC	318J	WILLIAMSTN	NJ
2011-06-30	856-839	0–9 XXXall 10 · 6 holders which blocks →	COMCAST IP PHONE, LLC	318J	VINELAND	NJ
2011-06-17	856-238	0–9 XXXall 10 · 6 holders which blocks →	METROPCS, INC.	5562	VINELAND	NJ
2011-06-14	856-230	0–9 XXXall 10 · 5 holders which blocks →	OMNIPOINT COMMUNICATIONS ENTERPRISES, LP	6626	MULLICA HL	NJ
2010-12-22	856-200	0–9 XXXall 10 · 5 holders which blocks →	METROPCS, INC.	5562	VINELAND	NJ
2010-11-03	856-300	0–9 XXXall 10 · 7 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NJ	118F	MILLVILLE	NJ
2010-02-25	856-288	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - NJ	637C	CAMDEN	NJ
2010-02-12	856-418	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NJ	118F	MULLICA HL	NJ
2009-10-14	856-291	0–9 XXXall 10 · 5 holders which blocks →	PAETEC ITEL, LLC	829J	MOORESTOWN	NJ
2009-07-08	856-725	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ	6391	WILLIAMSTN	NJ
2009-01-07	856-899	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	VINELAND	NJ
2009-01-06	856-295	0–9 XXXall 10 · 4 holders which blocks →	PEERLESS NETWORK OF NEW JERSEY, LLC - NJ	264F	CAMDEN	NJ
2008-12-11	856-375	0–9 XXXall 10 · 6 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	HADDONFLD	NJ
2008-11-21	856-883	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	CAMDEN	NJ
2008-11-10	856-298	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ	6391	HADDONFLD	NJ
2008-10-08	856-318	0–9 XXXall 10 · 6 holders which blocks →	COMCAST IP PHONE, LLC	318J	WILLIAMSTN	NJ
2008-08-12	856-448	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ	6391	HADDONFLD	NJ
2008-05-28	856-441	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NJ	118F	LAUREL SPG	NJ
2008-02-19	856-254	0–9 XXXall 10 · 3 holders which blocks →	METROPCS, INC.	5562	MERCHANTVL	NJ
2007-10-12	856-602	0–9 XXXall 10 · 3 holders which blocks →	BLOCK LINE SYSTEMS, LLC - NJ	835E	CAMDEN	NJ
2007-08-22	856-723	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ	6391	WILLIAMSTN	NJ
2007-08-22	856-955	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - NJ	637C	CAMDEN	NJ
2007-03-08	856-449	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	OMNIPOINT COMMUNICATIONS ENTERPRISES, LP	6626	MULLICA HL	NJ
2007-03-06	856-472	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ	6391	MULLICA HL	NJ
2007-01-03	856-213	0–9 XXXall 10 · 6 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ	7134	VINELAND	NJ
2006-11-15	856-204	0–9 XXXall 10 · 6 holders which blocks →	YMAX COMMUNICATIONS CORP. - NJ	325E	VINELAND	NJ
2005-05-23	856-807	0–9 XXXall 10 · 6 holders which blocks →	XTEL COMMUNICATIONS, INC.	854D	CAMDEN	NJ
2005-03-18	856-617	0–9 XXXall 10 · 6 holders which blocks →	COMCAST IP PHONE, LLC	318J	HADDON HTS	NJ
2004-11-15	856-676	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	CAMDEN	NJ
2004-06-09	856-726	0–9 XXXall 10 · 4 holders which blocks →	NETCARRIER TELECOM, INC. - NJ	9003	CAMDEN	NJ
2004-02-09	856-203	0–9 XXXall 10 · 4 holders which blocks →	MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ	3639	CAMDEN	NJ
2002-10-08	856-466	none assigned yet which blocks →	METROPCS, INC.	5562	VINELAND	NJ
2002-09-06	856-364	3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ	6391	VINELAND	NJ
2002-09-03	856-889	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ	6391	WILLIAMSTN	NJ
2002-08-07	856-579	0XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	PAETEC ITEL, LLC	829J	WOODBURY	NJ
2002-07-29	856-558	4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	VINELAND	NJ
2002-07-29	856-562	5XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	WILLIAMSTN	NJ
2002-07-11	856-655	none assigned yet which blocks →	OMNIPOINT COMMUNICATIONS ENTERPRISES, LP	6626	CAMDEN	NJ
2002-05-31	856-381	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - NJ	4804	WOODBURY	NJ
2002-05-30	856-631	0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	PAETEC ITEL, LLC	829J	HADDON HTS	NJ
2002-05-15	856-389	0XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks →	PAETEC ITEL, LLC	829J	RIVERTON	NJ

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.