NumberResearch Membership · Data 09/20/2026

Thousands-blocks in 860-381

This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/20/2026

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

The ten 1,000-number thousand-blocks inside prefix 860-381 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 860 blocks

Most active assignees, all time — NPA 860
OMNIPOINT COMMUNICATIONS, INC. - CT 2
LEVEL 3 COMMUNICATIONS, LLC - CT 2
TELEPORT COMMUNICATIONS AMERICA, LLC - CT 1
SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 1
PEERLESS NETWORK OF CONNECTICUT, LLC - CT 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
2008-10-31 860-381-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F LEDYARD CT
2025-05-20 860-381-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 LEDYARD CT
— 860-381-2XXX 2000–2999Reserved TELEPORT COMMUNICATIONS AMERICA, LLC - CT 7143 LEDYARD CT
2026-03-23 860-381-3XXX 3000–3999Assigned PEERLESS NETWORK OF CONNECTICUT, LLC - CT 539F LEDYARD CT
2005-06-21 860-381-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CT 4800 LEDYARD CT
2004-11-22 860-381-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J LEDYARD CT
2007-01-02 860-381-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CT 4800 LEDYARD CT
2011-03-14 860-381-7XXX 7000–7999Assigned METROPCS, INC. 5562 LEDYARD CT
2011-04-14 860-381-8XXX 8000–8999Assigned SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 9147 LEDYARD CT
2002-11-14 860-381-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 LEDYARD CT

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.