NumberResearch Membership · Data 09/19/2026

Thousands-blocks in 978-843

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 978-843 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
ONVOY, LLC - MA 4
TERRA NOVA TELECOM INC. 1
PAETEC ITEL, LLC 1
LEVEL 3 COMMUNICATIONS, LLC - MA 1
IP HORIZON 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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2022-07-05 978-843-0XXX 0000–0999Assigned TERRA NOVA TELECOM INC. 145J STERLING MA
2005-11-23 978-843-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J STERLING MA
— 978-843-2XXX 2000–2999Available STERLING MA
2023-10-05 978-843-3XXX 3000–3999Assigned ONVOY, LLC - MA 892D STERLING MA
2016-03-15 978-843-4XXX 4000–4999Assigned ONVOY, LLC - MA 892D STERLING MA
2015-05-07 978-843-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E STERLING MA
2015-10-01 978-843-6XXX 6000–6999Assigned IP HORIZON LLC 515J STERLING MA
— 978-843-7XXX 7000–7999Reserved LEVEL 3 COMMUNICATIONS, LLC - MA 4018 STERLING MA
2016-03-15 978-843-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D STERLING MA
2023-06-27 978-843-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D STERLING MA

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.