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 816
COMCAST IP PHONE, LLC 51
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
2025-08-13 816-297-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J ADRIAN MO
2025-05-29 816-970-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J ARCHIE MO
2024-12-04 816-553-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J HARRISONVL MO
2024-12-04 816-954-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J WELLINGTON MO
2022-08-23 816-481-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J LONEJACK MO
2020-10-05 816-815-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J BLUE SPG MO
2020-10-05 816-815-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J BLUE SPG MO
2020-08-18 816-710-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J KANSASCITY MO
2019-10-03 816-534-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J KANSASCITY MO
2017-04-20 816-295-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J BLUE SPG MO
2017-02-15 816-620-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J PECULIAR MO
2017-01-23 816-642-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J KANSASCITY MO
2016-08-16 816-381-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J KANSASCITY MO
2016-03-25 816-491-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J KANSASCITY MO
2015-07-30 816-598-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J BLUE SPG MO
2013-08-14 816-908-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J KANSASCITY MO
2013-05-13 816-912-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J KANSASCITY MO
2011-11-10 816-272-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J LEESSUMMIT MO
2011-11-10 816-443-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J GRAIN VLY MO
2011-11-10 816-540-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J PLEASANTHL MO
2011-11-10 816-622-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J BLUE SPG MO
2011-11-10 816-623-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J GREENWOOD MO
2011-11-10 816-650-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J BUCKNER MO
2011-11-10 816-653-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J ODESSA MO
2011-11-10 816-690-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J OAK GROVE MO
2011-11-10 816-709-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J KANSASCITY MO
2011-11-10 816-974-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J BELTON MO
2010-09-14 816-313-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J KANSASCITY MO
2008-03-03 816-867-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J GRAIN VLY MO
2008-02-14 816-348-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J BELTON MO
2007-08-27 816-503-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J KANSASCITY MO
2007-08-27 816-503-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J KANSASCITY MO
2007-03-09 816-834-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J OAK GROVE MO
2007-01-05 816-886-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J KANSASCITY MO
2007-01-05 816-886-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J KANSASCITY MO
2007-01-05 816-886-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J KANSASCITY MO
2006-11-13 816-988-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J BLUE SPG MO
2006-11-13 816-988-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J BLUE SPG MO
2006-07-11 816-886-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J KANSASCITY MO
2006-07-11 816-886-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J KANSASCITY MO
2005-09-20 816-249-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J BUCKNER MO
2005-09-20 816-265-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J BELTON MO
2005-09-20 816-272-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J LEESSUMMIT MO
2005-09-20 816-295-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J BLUE SPG MO
2005-09-20 816-355-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J GRAIN VLY MO
2005-09-20 816-366-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J GREENWOOD MO
2005-09-20 816-565-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J ODESSA MO
2005-09-20 816-625-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J OAK GROVE MO
2005-09-20 816-774-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J LKLOTAWANA MO
2005-09-20 816-987-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J PLEASANTHL MO

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.