NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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
CENTURYLINK COMMUNICATIONS, LLC 22
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
2017-08-30 225-251-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BATONROUGE LA
2014-05-22 225-470-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WH CASTLE LA
2014-05-15 225-263-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ST GABRIEL LA
2014-05-15 225-271-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DENHAM SPG LA
2014-05-15 225-283-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LIVINGSTON LA
2014-05-15 225-306-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ZACHARY LA
2014-05-15 225-307-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J STFRNCISVL LA
2014-05-15 225-310-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J JACKSON LA
2014-05-15 225-331-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CONVENT LA
2014-05-15 225-414-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SPRINGFLD LA
2014-05-15 225-417-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LUTCHER LA
2014-05-15 225-434-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J VACHERIE LA
2014-05-15 225-443-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ROUGON LA
2014-05-15 225-452-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MORGANZA LA
2014-05-15 225-500-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ALBANY LA
2014-05-15 225-522-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CLINTON LA
2014-05-15 225-629-2XXX 2000–2999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WILSON LA
2014-05-15 225-655-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TUNICA LA
2014-05-15 225-692-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PLAQUEMINE LA
2014-05-15 225-713-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NEW ROADS LA
2014-05-15 225-746-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DONALDSNVL LA
2014-02-11 225-442-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BATONROUGE LA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.