Thousands-blocks in 978-431

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 978-431 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 978 blocks

Most active assignees, all time — NPA 978

PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 2

BANDWIDTH.COM CLEC, LLC - MA 2

YMAX COMMUNICATIONS CORP. - MA 1

U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 1

TERRA NOVA TELECOM INC. 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
—	978-431-0XXX	0000–0999	Reserved	BANDWIDTH.COM CLEC, LLC - MA	990E	LITTLETON	MA
2002-07-29	978-431-1XXX	1000–1999	Assigned	PAETEC ITEL, LLC	829J	LITTLETON	MA
—	978-431-2XXX	2000–2999	Reserved	BANDWIDTH.COM CLEC, LLC - MA	990E	LITTLETON	MA
—	978-431-3XXX	3000–3999	Reserved	PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA	268F	LITTLETON	MA
2024-10-21	978-431-4XXX	4000–4999	Assigned	PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA	268F	LITTLETON	MA
2006-07-14	978-431-5XXX	5000–5999	Assigned	U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS	671J	LITTLETON	MA
2023-05-23	978-431-6XXX	6000–6999	Assigned	TERRA NOVA TELECOM INC.	145J	LITTLETON	MA
2008-02-08	978-431-7XXX	7000–7999	Assigned	YMAX COMMUNICATIONS CORP. - MA	316E	LITTLETON	MA
—	978-431-8XXX	8000–8999	Available			LITTLETON	MA
2017-04-28	978-431-9XXX	9000–9999	Assigned	ONVOY, LLC - MA	892D	LITTLETON	MA

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.