NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.

Most active assignees, all time — NPA 978
COMCAST IP PHONE, LLC 197
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
2023-06-15 978-616-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J WINCHENDON MA
2023-04-10 978-949-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J MANCHESTER MA
2022-10-14 978-680-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J CONCORD MA
2022-10-14 978-680-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J CONCORD MA
2022-06-24 978-919-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J GARDNER MA
2022-06-24 978-919-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J GARDNER MA
2020-10-20 978-519-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J HAVERHILL MA
2020-10-19 978-519-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J HAVERHILL MA
2020-10-19 978-941-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J LOWELL MA
2020-05-12 978-962-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J LEOMINSTER MA
2019-06-05 978-941-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J LOWELL MA
2019-06-05 978-961-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J NEWBURYPT MA
2019-06-04 978-759-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J CONCORD MA
2019-04-01 978-896-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J PEABODY MA
2018-06-13 978-519-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J HAVERHILL MA
2018-05-30 978-941-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J LOWELL MA
2018-05-14 978-834-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J AMESBURY MA
2018-03-08 978-909-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J WILMINGTON MA
2017-11-15 978-962-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J LEOMINSTER MA
2017-11-08 978-529-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J BEVERLY MA
2017-11-07 978-783-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J ANDOVER MA
2017-09-08 978-572-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J NEWBURYPT MA
2017-06-28 978-918-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J LAWRENCE MA
2016-12-12 978-519-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J HAVERHILL MA
2016-10-17 978-871-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J PEABODY MA
2016-04-25 978-306-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J SALEM MA
2016-03-02 978-955-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J LOWELL MA
2015-12-30 978-294-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J BILLERICA MA
2015-12-02 978-626-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J HAMILTON MA
2015-11-09 978-972-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J DANVERS MA
2015-11-05 978-954-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J LOWELL MA
2015-10-21 978-883-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J ASHBURNHAM MA
2015-10-14 978-491-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J GLOUCESTER MA
2015-09-15 978-965-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J LAWRENCE MA
2015-08-03 978-890-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J ESSEX MA
2015-07-21 978-243-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J MAYNARD MA
2015-07-21 978-986-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J TOPSFIELD MA
2015-07-16 978-510-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J W NEWBURY MA
2015-07-16 978-813-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J SHIRLEY MA
2015-07-14 978-668-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J WESTMINSTR MA
2015-07-10 978-572-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J NEWBURYPT MA
2015-06-30 978-641-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J HAVERHILL MA
2015-05-12 978-584-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J BILLERICA MA
2015-03-03 978-523-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J TOWNSEND MA
2015-02-20 978-652-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J TEMPLETON MA
2015-01-30 978-403-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J LUNENBURG MA
2015-01-23 978-677-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J LOWELL MA
2015-01-22 978-999-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J ROCKPORT MA
2015-01-16 978-626-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J HAMILTON MA
2014-12-31 978-208-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J LAWRENCE 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.