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
2021-06-23 251-901-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2021-06-18 251-880-6XXX 6000–6999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 ATMORE AL
2021-06-18 251-880-7XXX 7000–7999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 ATMORE AL
2021-06-18 251-880-8XXX 8000–8999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 ATMORE AL
2021-06-18 251-880-9XXX 9000–9999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 ATMORE AL
2021-06-15 251-228-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 FOLEY AL
2021-06-15 251-238-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F BREWTON AL
2021-06-15 251-810-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F GRAND BAY AL
2021-06-02 251-901-1XXX 1000–1999Assigned ONVOY, LLC - AL 604E MOBILE AL
2021-06-02 251-901-2XXX 2000–2999Assigned ONVOY, LLC - AL 604E MOBILE AL
2021-06-02 251-901-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E MOBILE AL
2021-06-02 251-901-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E MOBILE AL
2021-06-02 251-901-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E MOBILE AL
2021-05-25 251-515-0XXX 0000–0999Assigned ONVOY, LLC - AL 604E BAYMINETTE AL
2021-05-25 251-515-1XXX 1000–1999Assigned ONVOY, LLC - AL 604E BAYMINETTE AL
2021-05-25 251-515-2XXX 2000–2999Assigned ONVOY, LLC - AL 604E BAYMINETTE AL
2021-05-25 251-515-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E BAYMINETTE AL
2021-05-25 251-615-0XXX 0000–0999Assigned ONVOY, LLC - AL 604E FAIRHOPE AL
2021-05-25 251-615-1XXX 1000–1999Assigned ONVOY, LLC - AL 604E FAIRHOPE AL
2021-05-25 251-615-2XXX 2000–2999Assigned ONVOY, LLC - AL 604E FAIRHOPE AL
2021-05-25 251-615-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E FAIRHOPE AL
2021-05-24 251-310-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E BELLEFONTN AL
2021-05-24 251-310-6XXX 6000–6999Assigned ONVOY, LLC - AL 604E BELLEFONTN AL
2021-05-24 251-335-9XXX 9000–9999Assigned VONAGE AMERICA LLC 197D MELVIN AL
2021-05-19 251-880-0XXX 0000–0999Assigned ONVOY, LLC - AL 604E ATMORE AL
2021-05-19 251-880-1XXX 1000–1999Assigned ONVOY, LLC - AL 604E ATMORE AL
2021-05-18 251-215-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 FOLEY AL
2021-04-17 251-350-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BAYMINETTE AL
2021-04-17 251-350-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BAYMINETTE AL
2021-04-17 251-350-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BAYMINETTE AL
2021-04-17 251-500-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FOLEY AL
2021-04-17 251-500-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FOLEY AL
2021-04-17 251-500-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FOLEY AL
2021-04-17 251-500-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FOLEY AL
2021-04-17 251-500-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FOLEY AL
2021-04-17 251-500-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FOLEY AL
2021-04-17 251-543-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FOLEY AL
2021-04-17 251-543-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FOLEY AL
2021-04-17 251-543-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FOLEY AL
2021-04-17 251-543-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FOLEY AL
2021-04-17 251-600-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FOLEY AL
2021-04-17 251-949-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FOLEY AL
2021-04-14 251-901-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H MOBILE AL
2021-03-22 251-219-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2021-03-22 251-431-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2021-03-22 251-431-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2021-03-22 251-431-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2021-03-22 251-431-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2021-03-22 251-465-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2021-03-22 251-465-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 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.