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
2001-06-20	856-202	1XXX2XXX3XXX5XXX6XXX7XXX8XXX · 5 holders which blocks →	MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ	3639	WOODBURY	NJ
2001-06-20	856-528	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - NJ	4804	HADDONFLD	NJ
2001-06-20	856-553	0–9 XXXall 10 · 6 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PITMAN	NJ
2001-06-19	856-406	0XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	PAETEC ITEL, LLC	829J	MERCHANTVL	NJ
2001-06-19	856-505	0XXX5XXX6XXX7XXX9XXX · 2 holders which blocks →	PAETEC ITEL, LLC	829J	MOORESTOWN	NJ
2001-06-19	856-685	0XXX3XXX4XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	PAETEC ITEL, LLC	829J	HADDONFLD	NJ
2001-06-19	856-925	0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	PAETEC ITEL, LLC	829J	LAUREL SPG	NJ
2001-06-13	856-297	none assigned yet which blocks →	METROPCS, INC.	5562	VINELAND	NJ
2001-05-17	856-287	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ	6391	HADDON HTS	NJ
2001-03-29	856-236	not yet reported which blocks →	OMNIPOINT COMMUNICATIONS ENTERPRISES, LP	6626	CAMDEN	NJ
2001-03-29	856-313	not yet reported which blocks →	OMNIPOINT COMMUNICATIONS ENTERPRISES, LP	6626	MOORESTOWN	NJ
2001-03-29	856-534	not yet reported which blocks →	OMNIPOINT COMMUNICATIONS ENTERPRISES, LP	6626	HADDON HTS	NJ
2001-03-28	856-872	2XXX3XXX5XXX6XXX7XXX8XXX · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - NJ	4804	MARLTON	NJ
2001-03-14	856-206	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks →	COMCAST IP PHONE, LLC	318J	MOORESTOWN	NJ
2001-02-09	856-264	none assigned yet which blocks →	OMNIPOINT COMMUNICATIONS ENTERPRISES, LP	6626	MULLICA HL	NJ
2001-01-25	856-279	0XXX2XXX3XXX4XXX5XXX7XXX · 6 holders which blocks →	OMNIPOINT COMMUNICATIONS ENTERPRISES, LP	6626	SALEM	NJ
2001-01-18	856-607	0–9 XXXall 10 · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	COLLINGSWD	NJ
2001-01-15	856-506	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	PAETEC ITEL, LLC	829J	MILLVILLE	NJ
2001-01-08	856-425	0XXX2XXX which blocks →	OMNIPOINT COMMUNICATIONS ENTERPRISES, LP	6626	COLLINGSWD	NJ
2001-01-04	856-221	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks →	MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ	3639	BRIDGETON	NJ
—	856-205	4XXX which blocks →	VERIZON NEW JERSEY, INC.	9206	VINELAND	NJ
—	856-207	none assigned yet which blocks →	METROPCS, INC.	5562	VINELAND	NJ
—	856-209	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NJ	118F	CAMDEN	NJ
—	856-210	3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ	7134	BERLIN	NJ
—	856-211	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	NJ
—	856-214	0–9 XXXall 10 · 6 holders which blocks →	PEERLESS NETWORK OF NEW JERSEY, LLC - NJ	264F	SWEDESBORO	NJ
—	856-216	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	HADDONFLD	NJ
—	856-217	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	WOODBURY	NJ
—	856-218	3XXX5XXX6XXX · 3 holders which blocks →	VERIZON NEW JERSEY, INC.	9206	PITMAN	NJ
—	856-219	0–9 XXXall 10 · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NJ	118F	BEAVER BRK	NJ
—	856-220	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	MOORESTOWN	NJ
—	856-222	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	MOORESTOWN	NJ
—	856-223	4XXX7XXX · 2 holders which blocks →	VERIZON NEW JERSEY, INC.	9206	MULLICA HL	NJ
—	856-224	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	PAULSBORO	NJ
—	856-225	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	CAMDEN	NJ
—	856-227	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	BLACKWOOD	NJ
—	856-228	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	BLACKWOOD	NJ
—	856-229	0–9 XXXall 10 · 6 holders which blocks →	OMNIPOINT COMMUNICATIONS ENTERPRISES, LP	6626	HADDONFLD	NJ
—	856-231	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	MOORESTOWN	NJ
—	856-232	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	BLACKWOOD	NJ
—	856-233	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	CAMDEN	NJ
—	856-234	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	MOORESTOWN	NJ
—	856-235	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	MOORESTOWN	NJ
—	856-237	1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 3 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - NJ	7310	WILLIAMSTN	NJ
—	856-240	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 8 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - NJ	7310	COLLINGSWD	NJ
—	856-241	6XXX which blocks →	VERIZON NEW JERSEY, INC.	9206	SWEDESBORO	NJ
—	856-242	0–9 XXXall 10 · 8 holders which blocks →	OMNIPOINT COMMUNICATIONS ENTERPRISES, LP	6626	MOORESTOWN	NJ
—	856-243	2XXX5XXX6XXX7XXX8XXX · 2 holders which blocks →	PAETEC ITEL, LLC	829J	GLASSBORO	NJ
—	856-244	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - NJ	7310	GLASSBORO	NJ
—	856-245	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - NJ	7310	BLACKWOOD	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.