Recent prefix assignments

2 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 973

BARR TELL USA, INC. 2

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
—	973-353	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	NEWARK	NJ
—	973-354	0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - NJ	4804	BELLEVILLE	NJ
—	973-355	0XXX1XXX3XXX5XXX6XXX7XXX · 4 holders which blocks →	AT&T - LOCAL	7421	MORRISTOWN	NJ
—	973-356	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PASSAIC	NJ
—	973-357	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	PATERSON	NJ
—	973-358	0XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - NJ	4804	ERSKINELKS	NJ
—	973-359	5XXX which blocks →	VERIZON NEW JERSEY, INC.	9206	MORRISTOWN	NJ
—	973-360	8XXX which blocks →	VERIZON NEW JERSEY, INC.	9206	MADISON	NJ
—	973-361	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	DOVER	NJ
—	973-363	0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - NJ	4804	HAWTHORNE	NJ
—	973-364	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	CALDWELL	NJ
—	973-365	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	PASSAIC	NJ
—	973-366	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	DOVER	NJ
—	973-367	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	NEWARK	NJ
—	973-368	2XXX3XXX4XXX5XXX7XXX8XXX · 2 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - NJ	7142	NEWARK	NJ
—	973-369	0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - NJ	4804	LIVINGSTON	NJ
—	973-370	0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - NJ	4804	MENDHAM	NJ
—	973-371	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	NEWARK	NJ
—	973-372	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	NEWARK	NJ
—	973-373	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	NEWARK	NJ
—	973-374	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	NEWARK	NJ
—	973-375	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	NEWARK	NJ
—	973-376	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	MILLBURN	NJ
—	973-377	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	MADISON	NJ
—	973-378	0XXX1XXX4XXX · 2 holders which blocks →	VERIZON NEW JERSEY, INC.	9206	SO ORANGE	NJ
—	973-379	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	MILLBURN	NJ
—	973-380	0–9 XXXall 10 · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - NJ	4804	ORANGE	NJ
—	973-382	0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - NJ	4804	SO ORANGE	NJ
—	973-383	not yet reported which blocks →	BRIGHTSPEED OF NEW JERSEY, INC.	0138	NEWTON	NJ
—	973-384	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - NJ	7142	DOVER	NJ
—	973-385	1XXX8XXX9XXX · 2 holders which blocks →	VERIZON NEW JERSEY, INC.	9206	MORRISTOWN	NJ
—	973-386	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	WHIPPANY	NJ
—	973-387	1XXX3XXX4XXX5XXX6XXX7XXX · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - NJ	4804	MORRISTOWN	NJ
—	973-389	3XXX6XXX · 2 holders which blocks →	VERIZON NEW JERSEY, INC.	9206	PATERSON	NJ
—	973-390	none assigned yet which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NJ	6623	CALDWELL	NJ
—	973-391	2XXX3XXX4XXX5XXX6XXX7XXX · 3 holders which blocks →	VERIZON NEW JERSEY, INC.	9206	NEWARK	NJ
—	973-392	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	METROPCS, INC.	5562	NEWARK	NJ
—	973-394	3XXX which blocks →	VERIZON NEW JERSEY, INC.	9206	BOONTON	NJ
—	973-395	6XXX which blocks →	VERIZON NEW JERSEY, INC.	9206	ORANGE	NJ
—	973-396	2XXX3XXX6XXX7XXX8XXX · 3 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	CALDWELL	NJ
—	973-397	0XXX1XXX5XXX8XXX · 3 holders which blocks →	VERIZON NEW JERSEY, INC.	9206	MORRISTOWN	NJ
—	973-398	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	HOPATCONG	NJ
—	973-399	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	NEWARK	NJ
—	973-400	3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	ROCKAWAY	NJ
—	973-401	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	MORRISTOWN	NJ
—	973-402	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	BOONTON	NJ
—	973-403	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	CALDWELL	NJ
—	973-404	0XXX6XXX7XXX8XXX · 2 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	BOONTON	NJ
—	973-405	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks →	PAETEC ITEL, LLC	829J	PASSAIC	NJ
—	973-406	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks →	AT&T - LOCAL	7421	MT VIEW	NJ

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.