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 254
CENTURYLINK COMMUNICATIONS, LLC 58
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
2016-03-02 254-522-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BRECKENRDG TX
2015-12-17 254-720-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GORDON TX
2015-11-30 254-334-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J EASTLAND TX
2015-09-08 254-595-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J STRAWN TX
2015-02-04 254-276-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J IRENE TX
2015-02-04 254-332-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WHITNEY TX
2015-01-21 254-874-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BLUM TX
2015-01-09 254-789-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BEN HUR TX
2015-01-09 254-945-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MOSHEIM TX
2014-12-23 254-321-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BURLINGTON TX
2014-12-23 254-546-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CHILTON TX
2014-12-23 254-576-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HUBBARD TX
2014-12-23 254-578-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DAWSON TX
2014-12-23 254-584-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LOTT TX
2014-12-23 254-642-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ROGERS TX
2014-12-23 254-896-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J RIESEL TX
2014-12-23 254-993-0XXX 0000–0999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MOUNT CALM TX
2014-12-12 254-623-0XXX 0000–0999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BYNUM TX
2014-11-20 254-309-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ROSEBUD TX
2014-11-20 254-888-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J KOPPERL TX
2014-11-20 254-998-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MORGAN TX
2014-06-25 254-267-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J RANGER TX
2014-04-23 254-232-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LAGUNA PK TX
2014-04-23 254-236-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MCGREGOR TX
2014-04-23 254-237-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MEXIA TX
2014-04-23 254-242-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CHINA SPG TX
2014-04-23 254-244-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OGLESBY TX
2014-04-23 254-255-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GROESBECK TX
2014-04-23 254-256-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SALADO TX
2014-04-23 254-283-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HILLSBORO TX
2014-04-23 254-326-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CLIFTON TX
2014-04-23 254-374-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GHOLSON TX
2014-04-23 254-375-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J KOSSE TX
2014-04-23 254-426-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MARLIN TX
2014-04-23 254-527-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BARTLETT TX
2014-04-23 254-534-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TEMPLE TX
2014-04-23 254-587-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J REAGAN TX
2014-04-23 254-589-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NOLANVILLE TX
2014-04-23 254-655-9XXX 9000–9999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LORENA TX
2014-04-23 254-687-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ITASCA TX
2014-04-23 254-739-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TEAGUE TX
2014-04-23 254-765-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WORTHAM TX
2014-04-23 254-822-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LEROY TX
2014-04-23 254-831-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BELTON TX
2014-04-23 254-845-2XXX 2000–2999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SO BOSQUE TX
2014-04-23 254-853-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MOODY TX
2014-04-23 254-859-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J EDDY TX
2014-04-23 254-863-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J AXTELL TX
2014-04-23 254-875-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HALLSBURG TX
2014-04-23 254-876-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MART TX

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.