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 567
CENTURYLINK COMMUNICATIONS, LLC 47
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
2017-03-13 567-287-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DELTA OH
2015-02-12 567-368-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PERRYSBURG OH
2014-10-10 567-601-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ARLINGTON OH
2014-08-13 567-402-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MAUMEE OH
2014-06-17 567-393-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GALION OH
2014-06-17 567-443-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CRESTLINE OH
2014-03-31 567-407-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PLYMOUTH OH
2014-03-31 567-423-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PERRYSVL OH
2014-03-31 567-706-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MONROEVL OH
2014-03-27 567-352-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HASKISTGNY OH
2014-03-27 567-612-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GREEN SPG OH
2014-03-24 567-237-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BETTSVILLE OH
2014-03-24 567-337-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BRYAN OH
2014-03-24 567-380-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SCOTT OH
2014-03-24 567-413-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BOWLNGGREN OH
2014-03-24 567-482-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WOODVILLE OH
2014-03-24 567-495-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WESTON OH
2014-03-24 567-952-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WATERVILLE OH
2014-03-21 567-223-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LOUDONVL OH
2014-03-20 567-212-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WEST SALEM OH
2014-03-20 567-250-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FINDLAY OH
2014-03-20 567-268-2XXX 2000–2999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TIFFIN OH
2014-03-20 567-742-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HOLLAND OH
2014-03-19 567-321-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NEWWSHNGTN OH
2014-03-19 567-384-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MCCOMB OH
2014-03-19 567-401-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MILAN OH
2014-03-19 567-404-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FAYETTE OH
2014-03-19 567-424-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NORWALK OH
2014-03-19 567-444-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ARCHBOLD OH
2014-03-18 567-228-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BELLEVUE OH
2014-03-18 567-279-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CELINA OH
2014-03-18 567-286-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ST MARYS OH
2014-03-18 567-603-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MINSTER OH
2014-03-18 567-621-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FTRECOVERY OH
2014-03-18 567-623-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HURON OH
2014-03-18 567-855-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CLYDE OH
2014-01-16 567-209-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LEXINGTON OH
2014-01-16 567-233-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MARENGO OH
2014-01-16 567-483-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LUCAS OH
2013-12-17 567-200-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TOLEDO OH
2013-12-17 567-217-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ASHLAND OH
2013-11-22 567-292-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SHELBY OH
2013-11-22 567-309-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MANSFIELD OH
2013-11-15 567-701-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NAPOLEON OH
2013-09-17 567-231-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CHESTERVL OH
2013-09-16 567-226-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BLUFFTON OH
2013-03-29 567-418-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LIMA OH

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.