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 224
COMCAST IP PHONE, LLC 144
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
2022-10-05 224-550-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J ELK GROVE IL
2022-09-25 224-367-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J DUNDEE IL
2022-09-25 224-481-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J WHEELING IL
2022-09-25 224-481-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J WHEELING IL
2022-09-25 224-768-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J LAKEFOREST IL
2022-09-25 224-768-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J LAKEFOREST IL
2022-06-22 224-472-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J WINNETKA IL
2021-08-10 224-398-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J ARLIGTNHTS IL
2021-08-09 224-396-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J BARRINGTON IL
2020-02-28 224-487-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J CARY IL
2020-01-08 224-218-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J HAMPSHIRE IL
2019-10-04 224-781-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J FRANKLINPK IL
2018-11-13 224-294-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J LIBERTYVL IL
2018-10-30 224-282-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J NORTHBROOK IL
2018-09-07 224-529-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J GLENVIEW IL
2018-09-07 224-529-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J GLENVIEW IL
2018-04-11 224-282-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J NORTHBROOK IL
2018-04-03 224-284-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J DEERFIELD IL
2018-02-28 224-266-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J ELK GROVE IL
2017-09-08 224-580-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J DESPLAINES IL
2017-08-18 224-539-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J PALATINE IL
2017-02-17 224-857-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J ARLIGTNHTS IL
2017-02-14 224-271-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J LAKEFOREST IL
2016-12-30 224-781-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J FRANKLINPK IL
2016-09-26 224-769-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J ELGIN IL
2016-08-02 224-814-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J ROUND LAKE IL
2016-06-24 224-504-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J LIBERTYVL IL
2016-06-24 224-904-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J NORTHBROOK IL
2016-02-16 224-313-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J WHEELING IL
2016-02-11 224-268-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J ELGIN IL
2015-11-04 224-470-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J SKOKIE IL
2015-09-22 224-802-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J DUNDEE IL
2015-08-31 224-985-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J PARK RIDGE IL
2015-08-26 224-509-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J ALGONQUIN IL
2015-08-24 224-701-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J LAKE VILLA IL
2015-08-03 224-443-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J DESPLAINES IL
2015-07-20 224-408-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J WILMETTE IL
2015-07-01 224-352-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J HALF DAY IL
2015-06-26 224-434-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J WHEELING IL
2015-06-26 224-505-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J WINNETKA IL
2015-03-25 224-530-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J PLATO CTR IL
2015-03-10 224-662-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J LAKEZURICH IL
2015-03-10 224-908-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J FOX LAKE IL
2015-03-03 224-480-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J WAUKEGAN IL
2014-12-29 224-248-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J ARLIGTNHTS IL
2014-11-05 224-760-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J ELGIN IL
2014-10-29 224-714-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J EVANSTON IL
2014-10-23 224-385-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J BARRINGTON IL
2014-09-18 224-470-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J SKOKIE IL
2014-09-16 224-261-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J NORTHBROOK IL

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.