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 337
CENTURYLINK COMMUNICATIONS, LLC 57
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
2016-11-08 337-222-2XXX 2000–2999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DE QUINCY LA
2016-02-23 337-609-0XXX 0000–0999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LAFAYETTE LA
2016-02-23 337-609-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LAFAYETTE LA
2016-02-23 337-609-2XXX 2000–2999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LAFAYETTE LA
2016-02-23 337-609-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LAFAYETTE LA
2016-02-23 337-609-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LAFAYETTE LA
2016-02-23 337-609-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LAFAYETTE LA
2016-02-23 337-609-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LAFAYETTE LA
2016-02-23 337-609-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LAFAYETTE LA
2016-02-23 337-609-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LAFAYETTE LA
2016-02-23 337-609-9XXX 9000–9999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LAFAYETTE LA
2014-08-22 337-599-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PINEPRAIRI LA
2014-08-18 337-468-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MAMOU LA
2014-08-08 337-200-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BASILE LA
2014-08-08 337-220-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TURKEY CRK LA
2014-08-08 337-221-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DE RIDDER LA
2014-08-08 337-222-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DE QUINCY LA
2014-08-08 337-245-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SWEET LAKE LA
2014-08-08 337-301-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ELTON LA
2014-08-08 337-307-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J KROTZ SPG LA
2014-08-08 337-329-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J JENNINGS LA
2014-08-08 337-389-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OBERLIN LA
2014-08-08 337-390-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J KINDER LA
2014-08-08 337-409-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J VINTON LA
2014-08-08 337-416-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J REEVES LA
2014-08-08 337-548-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LAKEARTHUR LA
2014-08-08 337-724-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CHATAIGNIR LA
2014-08-08 337-753-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ROANOKE LA
2014-08-08 337-766-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LAWTELL LA
2014-08-08 337-888-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SULPHUR LA
2014-08-08 337-944-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LOREAUVL LA
2014-08-07 337-223-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GUEYDAN LA
2014-08-07 337-227-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CHURCH PT LA
2014-08-07 337-284-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OPELOUSAS LA
2014-08-07 337-306-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J RAYNE LA
2014-08-07 337-350-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CENTERVL LA
2014-08-07 337-357-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WEEKS IS LA
2014-08-07 337-391-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J IOWA LA
2014-08-07 337-441-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J STMARTINVL LA
2014-08-07 337-458-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CROWLEY LA
2014-08-07 337-510-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SUNSET LA
2014-08-07 337-550-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J EUNICE LA
2014-08-07 337-551-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NEW IBERIA LA
2014-08-07 337-565-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CARENCRO LA
2014-08-07 337-573-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J YOUNGSVL LA
2014-08-07 337-628-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WASHINGTON LA
2014-08-07 337-777-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PORT BARRE LA
2014-08-07 337-918-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ERATH LA
2014-08-07 337-935-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DUSON LA
2014-08-06 337-414-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BREAUX BDG 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.