Thousands-blocks in 978-633

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 978-633 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

LEVEL 3 COMMUNICATIONS, LLC - MA 3

BANDWIDTH.COM CLEC, LLC - MA 2

TWC IP ENABLED SERVICES, LLC 1

TON80 COMMUNICATIONS, LLC 1

PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 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
2012-04-16	978-633-0XXX	0000–0999	Assigned	PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA	268F	ORANGE	MA
2007-12-04	978-633-1XXX	1000–1999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	ORANGE	MA
2007-07-19	978-633-2XXX	2000–2999	Assigned	COMCAST IP PHONE, LLC	318J	ORANGE	MA
2004-08-06	978-633-3XXX	3000–3999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	ORANGE	MA
2005-06-01	978-633-4XXX	4000–4999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	ORANGE	MA
2010-12-13	978-633-5XXX	5000–5999	Assigned	BANDWIDTH.COM CLEC, LLC - MA	990E	ORANGE	MA
2022-03-22	978-633-6XXX	6000–6999	Assigned	TON80 COMMUNICATIONS, LLC	516J	ORANGE	MA
2006-06-19	978-633-7XXX	7000–7999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	ORANGE	MA
2021-03-23	978-633-8XXX	8000–8999	Assigned	ONVOY, LLC - MA	892D	ORANGE	MA
2008-11-10	978-633-9XXX	9000–9999	Assigned	BANDWIDTH.COM CLEC, LLC - MA	990E	ORANGE	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.