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 717
COMCAST IP PHONE, LLC 304
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
2024-04-25 717-223-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J STEWARTSTN PA
2023-01-05 717-674-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J DAUPHIN PA
2022-12-06 717-325-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J MCONELLSBG PA
2021-11-30 717-642-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J FAIRFIELD PA
2020-09-18 717-714-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J YORK PA
2020-09-18 717-714-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J YORK PA
2020-08-17 717-790-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J MECHANCSBG PA
2019-12-20 717-795-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J MECHANCSBG PA
2019-07-11 717-699-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J YORK PA
2019-07-03 717-931-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J DOVER PA
2019-07-03 717-931-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J DOVER PA
2019-05-02 717-716-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J MOUNTVILLE PA
2018-11-21 717-257-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J HARISBGZN1 PA
2018-11-13 717-714-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J YORK PA
2018-10-03 717-874-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J LANCASTER PA
2018-09-12 717-588-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J AKRON PA
2018-09-12 717-863-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J EPHRATA PA
2018-09-11 717-804-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J RED LION PA
2018-05-22 717-797-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J HANOVER PA
2018-05-02 717-452-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J MERCERSBG PA
2018-04-26 717-251-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J CHAMBERSBG PA
2018-04-11 717-740-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J LANCASTER PA
2018-03-29 717-788-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J WAYNESBORO PA
2018-02-28 717-797-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J HANOVER PA
2017-12-14 717-797-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J HANOVER PA
2017-12-13 717-893-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J YORK PA
2017-11-15 717-210-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J HARISBGZN1 PA
2017-11-15 717-287-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J ELIZABTHTN PA
2017-09-08 717-550-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J MECHANCSBG PA
2017-08-15 717-874-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J LANCASTER PA
2017-07-17 717-549-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J GETTYSBURG PA
2017-06-30 717-857-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J HARISBGZN1 PA
2017-05-15 717-797-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J HANOVER PA
2017-05-04 717-356-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J YORK PA
2017-04-26 717-708-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J LEBANON PA
2017-04-26 717-710-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J HARISBGZN1 PA
2017-01-20 717-621-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J LANCASTER PA
2016-11-10 717-984-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J LANCASTER PA
2016-10-27 717-251-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J CHAMBERSBG PA
2016-07-26 717-906-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J CARLISLE PA
2016-04-27 717-797-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J HANOVER PA
2016-02-16 717-727-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J HARISBGZN1 PA
2016-02-16 717-894-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J YORK PA
2016-02-12 717-790-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J MECHANCSBG PA
2016-01-22 717-628-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J MYERSTOWN PA
2016-01-15 717-869-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J LANCASTER PA
2015-12-15 717-857-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J HARISBGZN1 PA
2015-12-01 717-893-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J YORK PA
2015-11-09 717-869-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J LANCASTER PA
2015-11-05 717-980-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J HARISBGZN1 PA

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.