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 309
COMCAST IP PHONE, LLC 62
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
2025-12-04 309-446-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J BRIMFIELD IL
2025-05-16 309-969-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J MOLINE IL
2020-11-24 309-324-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J PEORIA IL
2020-11-23 309-239-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J BLOOMINGTN IL
2017-09-15 309-760-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J MONMOUTH IL
2016-08-25 309-966-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J PEORIA IL
2015-06-24 309-863-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J PEORIA IL
2014-09-17 309-431-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J PEORIA IL
2014-08-11 309-319-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J BLOOMINGTN IL
2014-07-11 309-315-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J GALESBURG IL
2014-07-11 309-973-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J GALESBURG IL
2014-06-13 309-585-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J BLOOMINGTN IL
2014-04-02 309-201-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J PEKIN IL
2014-02-11 309-421-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J MACOMB IL
2013-11-07 309-981-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J PEORIA IL
2013-10-24 309-200-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J BLOOMINGTN IL
2013-09-06 309-326-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J CANTON IL
2013-05-07 309-201-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J PEKIN IL
2013-04-04 309-839-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J PEORIA IL
2012-02-08 309-886-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J WASHINGTON IL
2011-08-31 309-297-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J GALESBURG IL
2010-09-01 309-349-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J PEKIN IL
2008-06-25 309-713-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J PEORIA IL
2008-06-25 309-713-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J PEORIA IL
2008-06-25 309-713-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J PEORIA IL
2008-06-06 309-569-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J BUSHNELL IL
2008-06-03 309-351-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J GALESBURG IL
2008-05-28 309-421-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J MACOMB IL
2008-05-16 309-357-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J CANTON IL
2008-05-16 309-518-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J LEWISTOWN IL
2008-05-16 309-620-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J PEKIN IL
2008-05-16 309-717-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J SUNNYLAND IL
2008-05-16 309-785-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J CUBA IL
2008-05-16 309-840-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J SOUTHPEKIN IL
2008-05-16 309-929-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J TREMONT IL
2007-08-16 309-240-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J DUNLAP IL
2007-08-16 309-321-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J MORTON IL
2007-08-16 309-387-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J GROVELAND IL
2007-08-16 309-580-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J MOSSVILLE IL
2007-08-16 309-761-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J KEWANEE IL
2007-08-14 309-585-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J BLOOMINGTN IL
2007-08-14 309-585-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J BLOOMINGTN IL
2007-08-14 309-585-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J BLOOMINGTN IL
2007-08-14 309-839-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J PEORIA IL
2007-08-14 309-839-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J PEORIA IL
2007-08-14 309-839-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J PEORIA IL
2007-04-04 309-966-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J PEORIA IL
2007-04-04 309-966-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J PEORIA IL
2007-04-04 309-966-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J PEORIA IL
2007-04-04 309-966-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J PEORIA IL

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.