NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

11 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 251
NEW CINGULAR WIRELESS PCS, LLC - GA 6
ONVOY, LLC - AL 3
WIDE VOICE, LLC - AL 2
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
2021-11-16 251-240-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 FOLEY AL
2021-11-16 251-374-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H MOBILE AL
2021-11-16 251-374-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H MOBILE AL
2021-11-16 251-374-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H MOBILE AL
2021-11-16 251-374-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H MOBILE AL
2021-11-16 251-374-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H MOBILE AL
2021-11-16 251-374-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H MOBILE AL
2021-11-15 251-349-9XXX 9000–9999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 MOBILE AL
2021-11-15 251-373-0XXX 0000–0999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 MOBILE AL
2021-11-15 251-373-5XXX 5000–5999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 MOBILE AL
2021-11-15 251-373-6XXX 6000–6999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 MOBILE AL
2021-11-15 251-373-8XXX 8000–8999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 MOBILE AL
2021-11-15 251-373-9XXX 9000–9999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 MOBILE AL
2021-11-05 251-449-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FINCHBURG AL
2021-11-05 251-449-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FINCHBURG AL
2021-11-04 251-297-8XXX 8000–8999Assigned ONVOY, LLC - AL 604E FLOMATON AL
2021-11-04 251-297-9XXX 9000–9999Assigned ONVOY, LLC - AL 604E FLOMATON AL
2021-11-04 251-346-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E EVERGREEN AL
2021-11-04 251-346-6XXX 6000–6999Assigned ONVOY, LLC - AL 604E EVERGREEN AL
2021-11-04 251-354-8XXX 8000–8999Assigned ONVOY, LLC - AL 604E GROVE HILL AL
2021-11-04 251-354-9XXX 9000–9999Assigned ONVOY, LLC - AL 604E GROVE HILL AL
2021-11-04 251-364-8XXX 8000–8999Assigned ONVOY, LLC - AL 604E JACKSON AL
2021-11-04 251-364-9XXX 9000–9999Assigned ONVOY, LLC - AL 604E JACKSON AL
2021-11-04 251-365-8XXX 8000–8999Assigned ONVOY, LLC - AL 604E CITRONELLE AL
2021-11-04 251-365-9XXX 9000–9999Assigned ONVOY, LLC - AL 604E CITRONELLE AL
2021-11-04 251-372-8XXX 8000–8999Assigned ONVOY, LLC - AL 604E BELLEFONTN AL
2021-11-04 251-372-9XXX 9000–9999Assigned ONVOY, LLC - AL 604E BELLEFONTN AL
2021-11-04 251-390-0XXX 0000–0999Assigned ONVOY, LLC - AL 604E BAYOUBATRE AL
2021-11-04 251-390-1XXX 1000–1999Assigned ONVOY, LLC - AL 604E BAYOUBATRE AL
2021-11-04 251-515-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H BAYMINETTE AL
2021-11-04 251-519-0XXX 0000–0999Assigned ONVOY, LLC - AL 604E DAUPHIN IS AL
2021-11-04 251-519-1XXX 1000–1999Assigned ONVOY, LLC - AL 604E DAUPHIN IS AL
2021-11-04 251-522-0XXX 0000–0999Assigned ONVOY, LLC - AL 604E COFFEEVL AL
2021-11-04 251-522-1XXX 1000–1999Assigned ONVOY, LLC - AL 604E COFFEEVL AL
2021-11-04 251-566-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H GOSPORT AL
2021-11-04 251-566-1XXX 1000–1999Assigned ONVOY, LLC - AL 604E GOSPORT AL
2021-11-04 251-615-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H FAIRHOPE AL
2021-11-04 251-615-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H FAIRHOPE AL
2021-11-04 251-664-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H MCINTOSH AL
2021-11-04 251-664-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H MCINTOSH AL
2021-11-03 251-353-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E PETERMAN AL
2021-11-03 251-353-6XXX 6000–6999Assigned ONVOY, LLC - AL 604E PETERMAN AL
2021-11-03 251-420-9XXX 9000–9999Assigned ONVOY, LLC - AL 604E BEATRICE AL
2021-11-03 251-830-8XXX 8000–8999Assigned ONVOY, LLC - AL 604E BEATRICE AL
2021-11-03 251-890-6XXX 6000–6999Assigned ONVOY, LLC - AL 604E REPTON AL
2021-11-03 251-890-9XXX 9000–9999Assigned ONVOY, LLC - AL 604E REPTON AL
2021-10-25 251-223-8XXX 8000–8999Assigned METROPCS, INC. 5562 FOLEY AL
2021-10-25 251-349-3XXX 3000–3999Assigned METROPCS, INC. 5562 MOBILE AL
2021-10-25 251-349-4XXX 4000–4999Assigned METROPCS, INC. 5562 MOBILE AL
2021-10-25 251-373-7XXX 7000–7999Assigned METROPCS, INC. 5562 MOBILE 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.