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 225
CHARTER IP ENABLED SERVICES, LLC 12
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
2021-09-29 225-321-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K GREENSBURG LA
2021-09-29 225-458-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MONTPELIER LA
2019-02-07 225-423-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K FRENCHSMNT LA
2019-02-07 225-558-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K SORRENTO LA
2019-02-07 225-600-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MAUREPAS LA
2013-09-04 225-624-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K VACHERIE LA
2008-09-10 225-209-6XXX 6000–6999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ALBANY LA
2006-10-13 225-209-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ALBANY LA
2006-10-13 225-243-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K DENHAM SPG LA
2006-10-13 225-257-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K DONALDSNVL LA
2006-10-13 225-435-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K LIVINGSTON LA
2006-10-09 225-414-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K SPRINGFLD LA

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.