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 601
COMCAST IP PHONE, LLC 60
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
2017-06-02 601-586-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J JACKSON MS
2017-05-18 601-778-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J LAUREL MS
2016-04-04 601-402-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J HATTIESBG MS
2015-08-25 601-800-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J ELLISVILLE MS
2015-07-28 601-882-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J JACKSON MS
2015-07-27 601-342-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J LAUREL MS
2015-07-17 601-691-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J CANTON MS
2015-06-19 601-531-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J MERIDIAN MS
2014-06-20 601-909-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J HATTIESBG MS
2014-05-20 601-203-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J JACKSON MS
2014-04-25 601-708-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J CLINTON MS
2014-01-24 601-488-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J CLINTON MS
2013-10-15 601-286-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J MERIDIAN MS
2013-10-08 601-340-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J LAUREL MS
2013-09-09 601-591-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J BRANDON MS
2013-08-16 601-602-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J HATTIESBG MS
2013-06-17 601-909-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J HATTIESBG MS
2012-09-06 601-348-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J PURVIS MS
2012-03-22 601-336-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J HATTIESBG MS
2012-02-21 601-453-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J MERIDIAN MS
2012-01-19 601-336-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J HATTIESBG MS
2011-11-01 601-427-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J MADISON MS
2011-10-05 601-453-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J MERIDIAN MS
2011-09-30 601-345-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J JACKSON MS
2011-09-30 601-651-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J LAUREL MS
2011-09-26 601-398-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J JACKSON MS
2011-09-26 601-398-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J JACKSON MS
2011-09-26 601-398-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J JACKSON MS
2011-09-26 601-398-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J JACKSON MS
2011-09-26 601-398-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J JACKSON MS
2011-09-21 601-602-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J HATTIESBG MS
2011-08-10 601-391-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J CANTON MS
2011-06-16 601-602-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J HATTIESBG MS
2010-08-17 601-286-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J MERIDIAN MS
2009-07-10 601-724-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J BRANDON MS
2009-03-23 601-651-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J LAUREL MS
2009-02-27 601-255-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J HATTIESBG MS
2008-11-21 601-453-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J MERIDIAN MS
2008-05-22 601-336-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J HATTIESBG MS
2008-05-22 601-336-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J HATTIESBG MS
2008-03-05 601-397-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J JACKSON MS
2008-03-05 601-487-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J JACKSON MS
2008-03-04 601-321-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J JACKSON MS
2008-02-29 601-336-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J HATTIESBG MS
2008-02-06 601-487-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J JACKSON MS
2008-01-30 601-707-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J MADISON MS
2007-11-01 601-282-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J MERIDIAN MS
2007-07-27 601-667-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J CANTON MS
2007-07-26 601-706-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J BRANDON MS
2007-04-30 601-342-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J LAUREL MS

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.