NumberResearch Membership · Data 09/20/2026

Thousands-blocks in 978-588

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 978-588 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
VERIZON NEW ENGLAND INC. 5
ONVOY, LLC - MA 3
TELNYX LLC 1
ONVOY SPECTRUM, 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
2017-04-18 978-588-0XXX 0000–0999Assigned TELNYX LLC 073H AYER MA
2019-01-24 978-588-1XXX 1000–1999Assigned ONVOY, LLC - MA 892D AYER MA
2023-05-26 978-588-2XXX 2000–2999Assigned ONVOY, LLC - MA 892D AYER MA
2016-07-05 978-588-3XXX 3000–3999Assigned VERIZON NEW ENGLAND INC. 9102 AYER MA
2016-07-05 978-588-4XXX 4000–4999Assigned VERIZON NEW ENGLAND INC. 9102 AYER MA
2016-07-05 978-588-5XXX 5000–5999Assigned VERIZON NEW ENGLAND INC. 9102 AYER MA
2016-07-05 978-588-6XXX 6000–6999Assigned VERIZON NEW ENGLAND INC. 9102 AYER MA
2016-07-05 978-588-7XXX 7000–7999Assigned VERIZON NEW ENGLAND INC. 9102 AYER MA
2019-01-24 978-588-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D AYER MA
2021-02-01 978-588-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H AYER 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.