NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

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 616
COMCAST IP PHONE, LLC 97
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
2024-02-08 616-381-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2024-02-08 616-381-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2024-02-08 616-381-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2024-02-08 616-381-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2024-02-08 616-381-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2023-04-13 616-758-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J GRANDHAVEN MI
2023-01-26 616-314-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J ADA MI
2023-01-12 616-341-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2023-01-12 616-980-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2023-01-12 616-980-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2023-01-12 616-980-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2023-01-12 616-980-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2023-01-12 616-980-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2023-01-10 616-342-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J HUDSONVL MI
2022-10-27 616-626-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J BYRON CTR MI
2021-11-24 616-210-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J ZEELAND MI
2020-10-19 616-284-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2020-10-19 616-286-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2020-10-19 616-500-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2020-10-19 616-574-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2020-06-26 616-800-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J JAMESTOWN MI
2017-05-31 616-279-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2017-05-01 616-279-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2016-12-21 616-265-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2016-10-21 616-278-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2016-09-16 616-377-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J HOLLAND MI
2016-08-11 616-888-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2016-08-03 616-649-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2016-05-05 616-512-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J DUTTON MI
2016-03-31 616-591-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2016-02-17 616-591-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2015-12-10 616-734-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2015-08-25 616-333-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2015-04-23 616-930-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2015-04-15 616-319-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J LOWELL MI
2015-04-09 616-326-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J ROCKFORD MI
2015-03-12 616-512-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J DUTTON MI
2014-09-25 616-228-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2014-05-19 616-288-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2014-05-19 616-288-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2014-05-19 616-288-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2014-03-03 616-226-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2014-01-15 616-294-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J HOLLAND MI
2013-11-20 616-202-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2013-10-28 616-379-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J HUDSONVL MI
2013-04-30 616-259-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2013-04-30 616-259-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2013-04-30 616-259-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2012-12-18 616-288-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2012-12-18 616-323-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI

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.