NumberResearch Membership · Data 09/19/2026

Thousands-blocks in 973-821

This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/19/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

The ten 1,000-number thousand-blocks inside prefix 973-821 and who was initially assigned each. Under pooling these blocks often belong to different carriers — the single prefix-level “assignee” is usually just the pool / code holder, not who holds the numbers. ← all 973 blocks

Most active assignees, all time — NPA 973
LEVEL 3 COMMUNICATIONS, LLC - NJ 3
NEW CINGULAR WIRELESS PCS, LLC - DC 2
PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 1
ONVOY, LLC - NJ 1
MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2021-02-10 973-821-0XXX 0000–0999Assigned ONVOY, LLC - NJ 637C SO ORANGE NJ
2002-03-12 973-821-1XXX 1000–1999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 SO ORANGE NJ
2024-12-02 973-821-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SO ORANGE NJ
2005-02-16 973-821-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NJ 4804 SO ORANGE NJ
2003-08-07 973-821-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NJ 4804 SO ORANGE NJ
2006-09-13 973-821-5XXX 5000–5999Assigned CSC VOICE, LLC 612K SO ORANGE NJ
2024-12-02 973-821-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SO ORANGE NJ
2005-02-16 973-821-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NJ 4804 SO ORANGE NJ
2013-04-02 973-821-8XXX 8000–8999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F SO ORANGE NJ
— 973-821-9XXX 9000–9999Reserved MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ 7134 SO ORANGE NJ

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.