NumberResearch Membership · Data 09/19/2026

Thousands-blocks in 856-368

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 856-368 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 856 blocks

Most active assignees, all time — NPA 856
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ 3
CORETEL NEW JERSEY, INC. - NJ 3
TERRA NOVA TELECOM INC. 2
YMAX COMMUNICATIONS CORP. - NJ 1
PEERLESS NETWORK OF NEW JERSEY, LLC - 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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
— 856-368-0XXX 0000–0999Reserved MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ 7134 RIVERSIDE NJ
2026-03-05 856-368-1XXX 1000–1999Assigned TERRA NOVA TELECOM INC. 145J RIVERSIDE NJ
— 856-368-2XXX 2000–2999Reserved MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ 7134 RIVERSIDE NJ
2005-07-01 856-368-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ 7134 RIVERSIDE NJ
2019-05-16 856-368-4XXX 4000–4999Assigned CORETEL NEW JERSEY, INC. - NJ 482F RIVERSIDE NJ
2009-11-20 856-368-5XXX 5000–5999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F RIVERSIDE NJ
2019-04-01 856-368-6XXX 6000–6999Assigned CORETEL NEW JERSEY, INC. - NJ 482F RIVERSIDE NJ
2019-05-16 856-368-7XXX 7000–7999Assigned CORETEL NEW JERSEY, INC. - NJ 482F RIVERSIDE NJ
2025-07-02 856-368-8XXX 8000–8999Assigned TERRA NOVA TELECOM INC. 145J RIVERSIDE NJ
2008-02-08 856-368-9XXX 9000–9999Assigned YMAX COMMUNICATIONS CORP. - NJ 325E RIVERSIDE 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.