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 225
COMCAST IP PHONE, LLC 131
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
2019-08-29 225-256-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J BATONROUGE LA
2019-08-29 225-256-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J BATONROUGE LA
2019-08-29 225-256-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J BATONROUGE LA
2019-03-26 225-523-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J DENHAM SPG LA
2018-12-11 225-256-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J BATONROUGE LA
2018-12-11 225-256-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J BATONROUGE LA
2018-12-11 225-256-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J BATONROUGE LA
2018-12-11 225-256-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J BATONROUGE LA
2018-06-06 225-465-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J BATONROUGE LA
2018-06-06 225-465-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J BATONROUGE LA
2018-04-24 225-251-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J BATONROUGE LA
2018-04-24 225-251-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J BATONROUGE LA
2017-12-14 225-390-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J GONZALES LA
2017-12-14 225-396-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J VACHERIE LA
2017-12-14 225-398-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J LUTCHER LA
2017-12-11 225-306-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J ZACHARY LA
2017-12-11 225-314-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J ST GABRIEL LA
2017-12-11 225-351-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J ROUGON LA
2017-12-11 225-363-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J GALVEZ LA
2017-12-11 225-401-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J PLAQUEMINE LA
2017-12-11 225-402-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J DUTCH TOWN LA
2017-12-11 225-423-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J FRENCHSMNT LA
2017-12-11 225-470-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J WH CASTLE LA
2017-12-11 225-484-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J LIVINGSTON LA
2017-12-11 225-523-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J DENHAM SPG LA
2017-12-11 225-558-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J SORRENTO LA
2017-12-11 225-725-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J DONALDSNVL LA
2017-12-06 225-256-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J BATONROUGE LA
2017-07-10 225-964-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J BATONROUGE LA
2017-05-09 225-681-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J ZACHARY LA
2017-04-14 225-828-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J GONZALES LA
2017-03-21 225-412-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J BATONROUGE LA
2017-03-01 225-831-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J BATONROUGE LA
2017-03-01 225-831-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J BATONROUGE LA
2017-01-25 225-998-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J DENHAM SPG LA
2016-12-30 225-831-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J BATONROUGE LA
2016-12-30 225-831-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J BATONROUGE LA
2016-09-30 225-960-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J BATONROUGE LA
2016-08-10 225-960-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J BATONROUGE LA
2016-07-27 225-930-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J BATONROUGE LA
2016-07-05 225-201-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J BATONROUGE LA
2016-05-16 225-960-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J BATONROUGE LA
2016-04-28 225-930-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J BATONROUGE LA
2015-08-10 225-508-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J BATONROUGE LA
2015-07-09 225-478-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J BATONROUGE LA
2015-06-10 225-478-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J BATONROUGE LA
2015-06-10 225-478-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J BATONROUGE LA
2015-06-10 225-478-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J BATONROUGE LA
2015-05-12 225-478-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J BATONROUGE LA
2015-04-07 225-478-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J BATONROUGE LA

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.