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
—	973-588	0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ	3639	BOONTON	NJ
—	973-589	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	NEWARK	NJ
—	973-590	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - NJ	4804	MORRISTOWN	NJ
—	973-591	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	PASSAIC	NJ
—	973-592	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks →	PAETEC ITEL, LLC	829J	ORANGE	NJ
—	973-593	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	MADISON	NJ
—	973-594	2XXX6XXX · 2 holders which blocks →	VERIZON NEW JERSEY, INC.	9206	PASSAIC	NJ
—	973-595	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	PATERSON	NJ
—	973-596	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	NEWARK	NJ
—	973-597	8XXX which blocks →	VERIZON NEW JERSEY, INC.	9206	LIVINGSTON	NJ
—	973-598	3XXX4XXX5XXX6XXX7XXX · 4 holders which blocks →	VERIZON NEW JERSEY, INC.	9206	SUCCASUNNA	NJ
—	973-599	8XXX which blocks →	VERIZON NEW JERSEY, INC.	9206	WHIPPANY	NJ
—	973-601	2XXX3XXX4XXX5XXX7XXX8XXX · 5 holders which blocks →	VERIZON NEW JERSEY, INC.	9206	HOPATCONG	NJ
—	973-602	2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	AT&T - LOCAL	7421	WHIPPANY	NJ
—	973-603	not yet reported which blocks →	SPOK, INC.	6630	NEWARK	NJ
—	973-604	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - NJ	637C	BELLEVILLE	NJ
—	973-605	0XXX4XXX · 2 holders which blocks →	VERIZON NEW JERSEY, INC.	9206	MORRISTOWN	NJ
—	973-606	0XXX1XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	VERIZON NEW JERSEY, INC.	9206	MORRISTOWN	NJ
—	973-607	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	AT&T - LOCAL	7421	DOVER	NJ
—	973-608	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	MORRISTOWN	NJ
—	973-610	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	MORRISTOWN	NJ
—	973-611	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	NJ
—	973-612	not yet reported which blocks →	AMERICAN MESSAGING SERVICES, LLC	9748	NEWARK	NJ
—	973-614	4XXX which blocks →	VERIZON NEW JERSEY, INC.	9206	PASSAIC	NJ
—	973-615	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	MORRISTOWN	NJ
—	973-616	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	POMPTONLKS	NJ
—	973-617	0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	POMPTONLKS	NJ
—	973-618	6XXX7XXX8XXX which blocks →	VERIZON NEW JERSEY, INC.	9206	CALDWELL	NJ
—	973-619	0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - NJ	4804	BLOOMFIELD	NJ
—	973-620	0–9 XXXall 10 · 6 holders which blocks →	METROPCS, INC.	5562	DOVER	NJ
—	973-621	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	NEWARK	NJ
—	973-622	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	NEWARK	NJ
—	973-623	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	NEWARK	NJ
—	973-624	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	NEWARK	NJ
—	973-625	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	ROCKAWAY	NJ
—	973-626	not yet reported which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NJ	6623	MT VIEW	NJ
—	973-627	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	ROCKAWAY	NJ
—	973-628	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	MT VIEW	NJ
—	973-629	1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	LIVINGSTON	NJ
—	973-630	not yet reported which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	MORRISTOWN	NJ
—	973-631	0XXX4XXX · 2 holders which blocks →	VERIZON NEW JERSEY, INC.	9206	MORRISTOWN	NJ
—	973-632	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ	6391	CALDWELL	NJ
—	973-633	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	MT VIEW	NJ
—	973-634	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ	6391	NEWARK	NJ
—	973-635	not yet reported which blocks →	VERIZON NEW JERSEY, INC.	9206	CHATHAM	NJ
—	973-636	1XXX4XXX8XXX · 3 holders which blocks →	VERIZON NEW JERSEY, INC.	9206	HAWTHORNE	NJ
—	973-637	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 6 holders which blocks →	AT&T - LOCAL	7421	WHIPPANY	NJ
—	973-638	1XXX2XXX6XXX7XXX8XXX · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - NJ	4804	LITTLE FLS	NJ
—	973-639	9XXX which blocks →	VERIZON NEW JERSEY, INC.	9206	NEWARK	NJ
—	973-641	not yet reported which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NJ	6623	CALDWELL	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.