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 251
MCC TELEPHONY OF THE SOUTH, LLC - AL 51
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
2026-06-24 251-464-5XXX 5000–5999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F BEATRICE AL
2025-04-17 251-448-2XXX 2000–2999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F MCCULLOUGH AL
2024-08-08 251-488-9XXX 9000–9999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F CASTLEBRY AL
2024-06-11 251-296-6XXX 6000–6999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F FLOMATON AL
2024-06-11 251-557-1XXX 1000–1999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F PETERMAN AL
2020-03-05 251-322-5XXX 5000–5999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F ATMORE AL
2019-10-11 251-651-4XXX 4000–4999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F BAYMINETTE AL
2019-08-06 251-286-8XXX 8000–8999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F BREWTON AL
2018-07-12 251-355-6XXX 6000–6999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F MOBILE AL
2017-07-11 251-264-2XXX 2000–2999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F MOBILE AL
2016-12-08 251-312-1XXX 1000–1999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F REPTON AL
2016-09-16 251-930-1XXX 1000–1999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F MOBILE AL
2015-04-23 251-340-2XXX 2000–2999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F MOBILE AL
2013-01-10 251-210-6XXX 6000–6999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F FAIRHOPE AL
2012-07-18 251-267-7XXX 7000–7999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F FRISCOCITY AL
2012-07-18 251-765-1XXX 1000–1999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F EXCEL AL
2012-07-16 251-262-1XXX 1000–1999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F JACKSON AL
2012-07-11 251-216-5XXX 5000–5999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F EVERGREEN AL
2012-07-11 251-302-2XXX 2000–2999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F MONROEVL AL
2011-08-25 251-288-3XXX 3000–3999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F MOBILE AL
2011-08-25 251-288-4XXX 4000–4999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F MOBILE AL
2010-12-17 251-600-1XXX 1000–1999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F FOLEY AL
2010-12-13 251-200-0XXX 0000–0999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F FOLEY AL
2010-12-13 251-240-0XXX 0000–0999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F FOLEY AL
2010-12-13 251-256-0XXX 0000–0999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F FOLEY AL
2010-12-13 251-271-0XXX 0000–0999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F FOLEY AL
2010-12-13 251-324-0XXX 0000–0999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F FOLEY AL
2010-12-13 251-677-0XXX 0000–0999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F FOLEY AL
2010-12-01 251-500-1XXX 1000–1999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F FOLEY AL
2010-06-02 251-494-0XXX 0000–0999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F BAYMINETTE AL
2010-06-02 251-517-9XXX 9000–9999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F FAIRHOPE AL
2010-05-25 251-321-0XXX 0000–0999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F ATMORE AL
2010-05-25 251-357-0XXX 0000–0999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F HUXFORD AL
2010-05-21 251-299-1XXX 1000–1999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F MT VERNON AL
2010-05-21 251-306-1XXX 1000–1999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F IRNGTNSTEL AL
2010-05-14 251-207-0XXX 0000–0999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F BELLEFONTN AL
2010-05-14 251-273-0XXX 0000–0999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F CITRONELLE AL
2010-05-14 251-290-0XXX 0000–0999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F GRAND BAY AL
2010-05-14 251-375-0XXX 0000–0999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F MOBILE AL
2010-05-14 251-418-1XXX 1000–1999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F MCINTOSH AL
2010-05-14 251-824-6XXX 6000–6999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F BAYOUBATRE AL
2010-05-05 251-314-1XXX 1000–1999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F BREWTON AL
2007-11-05 251-223-4XXX 4000–4999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F FOLEY AL
2006-12-14 251-210-4XXX 4000–4999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F FAIRHOPE AL
2005-03-22 251-224-1XXX 1000–1999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F FOLEY AL
2004-03-31 251-224-5XXX 5000–5999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F FOLEY AL
2004-02-06 251-224-3XXX 3000–3999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F FOLEY AL
2004-02-06 251-224-4XXX 4000–4999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F FOLEY AL
2004-02-06 251-224-8XXX 8000–8999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F FOLEY AL
2004-02-06 251-224-9XXX 9000–9999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F FOLEY AL

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.