Thousands-blocks in 860-454

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 860-454 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

COMCAST IP PHONE, LLC 4

TELEPORT COMMUNICATIONS AMERICA, LLC - CT 1

SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 1

PEERLESS NETWORK OF CONNECTICUT, LLC - CT 1

PAETEC ITEL, LLC 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

Recent thousands-block assignments
Assigned	Thousands-block	Last 4 digits	Status	Assignee	OCN	Rate center	State
—	860-454-0XXX	0000–0999	Reserved	COMCAST IP PHONE, LLC	318J	ROCKVILLE	CT
—	860-454-1XXX	1000–1999	Available			ROCKVILLE	CT
—	860-454-2XXX	2000–2999	Reserved	TELEPORT COMMUNICATIONS AMERICA, LLC - CT	7143	ROCKVILLE	CT
2006-04-27	860-454-3XXX	3000–3999	Assigned	PAETEC ITEL, LLC	829J	ROCKVILLE	CT
2002-12-02	860-454-4XXX	4000–4999	Assigned	COMCAST IP PHONE, LLC	318J	ROCKVILLE	CT
2005-10-19	860-454-5XXX	5000–5999	Assigned	SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT	9147	ROCKVILLE	CT
2023-07-07	860-454-6XXX	6000–6999	Assigned	ONVOY, LLC - CT	639C	ROCKVILLE	CT
2006-05-10	860-454-7XXX	7000–7999	Assigned	COMCAST IP PHONE, LLC	318J	ROCKVILLE	CT
2006-05-10	860-454-8XXX	8000–8999	Assigned	COMCAST IP PHONE, LLC	318J	ROCKVILLE	CT
2013-04-04	860-454-9XXX	9000–9999	Assigned	PEERLESS NETWORK OF CONNECTICUT, LLC - CT	539F	ROCKVILLE	CT

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.