NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

5 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, last 30 days — NPA 205
ONVOY, LLC - AL 4
BANDWIDTH.COM CLEC, LLC - AL 1
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
2014-02-25 205-528-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GUIN AL
2014-02-25 205-549-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CARBONHILL AL
2014-02-25 205-564-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ALABASTER AL
2014-02-25 205-575-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LIVINGSTON AL
2014-02-25 205-627-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 DOUBLE SPG AL
2014-02-25 205-656-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 GORDO AL
2014-02-25 205-670-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J COLUMBIANA AL
2014-02-25 205-694-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GARDENDALE AL
2014-02-25 205-708-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J YORK AL
2014-02-25 205-775-9XXX 9000–9999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CHELSEA AL
2014-02-25 205-928-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CENTREVL AL
2014-02-24 205-319-8XXX 8000–8999Assigned LEVEL 3 TELECOM OF ALABAMA, LLC - AL 7327 CALERA AL
2014-02-24 205-430-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HAMILTON AL
2014-02-24 205-448-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SURFSIDE AL
2014-02-24 205-494-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HALEYVILLE AL
2014-02-24 205-508-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TRUSSVILLE AL
2014-02-24 205-530-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J JASPER AL
2014-02-24 205-551-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 PHILCMPBLL AL
2014-02-24 205-557-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J VERNON AL
2014-02-24 205-606-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 SULLIGENT AL
2014-02-24 205-632-9XXX 9000–9999Assigned METROPCS, INC. 5562 TUSCALOOSA AL
2014-02-24 205-679-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MONTEVALLO AL
2014-02-24 205-707-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 HACKLEBURG AL
2014-02-24 205-735-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WARRIOR AL
2014-02-24 205-810-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PINSON AL
2014-02-24 205-814-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PELL CITY AL
2014-02-24 205-828-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J REFORM AL
2014-02-24 205-857-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 THORSBY AL
2014-02-24 205-955-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 JEMISON AL
2014-02-20 205-203-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F BIRMINGHAM AL
2014-02-20 205-203-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F BIRMINGHAM AL
2014-02-20 205-203-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F BIRMINGHAM AL
2014-02-20 205-224-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F BIRMINGHAM AL
2014-02-20 205-235-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F DORA AL
2014-02-20 205-245-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 THORSBY AL
2014-02-20 205-259-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F BIRMINGHAM AL
2014-02-20 205-259-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F BIRMINGHAM AL
2014-02-20 205-319-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F CALERA AL
2014-02-20 205-379-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F BIRMINGHAM AL
2014-02-20 205-379-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F BIRMINGHAM AL
2014-02-20 205-549-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F CARBONHILL AL
2014-02-20 205-578-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F BIRMINGHAM AL
2014-02-20 205-607-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F GARDENDALE AL
2014-02-20 205-607-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F GARDENDALE AL
2014-02-20 205-678-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F CHELSEA AL
2014-02-20 205-861-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F TUSCALOOSA AL
2014-02-20 205-861-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F TUSCALOOSA AL
2014-02-19 205-203-5XXX 5000–5999Assigned METROPCS, INC. 5562 BIRMINGHAM AL
2014-02-19 205-203-6XXX 6000–6999Assigned METROPCS, INC. 5562 BIRMINGHAM AL
2014-02-19 205-203-7XXX 7000–7999Assigned METROPCS, INC. 5562 BIRMINGHAM AL

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.