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
2019-03-14 251-278-2XXX 2000–2999Assigned ONVOY, LLC - AL 604E FAIRHOPE AL
2019-03-14 251-278-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E FAIRHOPE AL
2019-03-14 251-280-1XXX 1000–1999Assigned ONVOY, LLC - AL 604E FLOMATON AL
2019-03-14 251-290-2XXX 2000–2999Assigned ONVOY, LLC - AL 604E GRAND BAY AL
2019-03-14 251-290-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E GRAND BAY AL
2019-03-14 251-299-6XXX 6000–6999Assigned ONVOY, LLC - AL 604E MT VERNON AL
2019-03-14 251-299-9XXX 9000–9999Assigned ONVOY, LLC - AL 604E MT VERNON AL
2019-03-14 251-302-0XXX 0000–0999Assigned ONVOY, LLC - AL 604E MONROEVL AL
2019-03-14 251-302-1XXX 1000–1999Assigned ONVOY, LLC - AL 604E MONROEVL AL
2019-03-14 251-306-0XXX 0000–0999Assigned ONVOY, LLC - AL 604E IRNGTNSTEL AL
2019-03-14 251-306-2XXX 2000–2999Assigned ONVOY, LLC - AL 604E IRNGTNSTEL AL
2019-03-14 251-317-9XXX 9000–9999Assigned ONVOY, LLC - AL 604E CITRONELLE AL
2019-03-14 251-357-1XXX 1000–1999Assigned ONVOY, LLC - AL 604E HUXFORD AL
2019-03-14 251-369-8XXX 8000–8999Assigned ONVOY, LLC - AL 604E EVERGREEN AL
2019-03-14 251-428-1XXX 1000–1999Assigned ONVOY, LLC - AL 604E HUXFORD AL
2019-03-14 251-651-0XXX 0000–0999Assigned ONVOY, LLC - AL 604E BAYMINETTE AL
2019-03-14 251-651-1XXX 1000–1999Assigned ONVOY, LLC - AL 604E BAYMINETTE AL
2019-03-14 251-866-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E CITRONELLE AL
2019-02-07 251-257-7XXX 7000–7999Assigned ONVOY, LLC - AL 604E BELLEFONTN AL
2019-02-07 251-385-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E MOBILE AL
2019-02-07 251-385-9XXX 9000–9999Assigned ONVOY, LLC - AL 604E MOBILE AL
2019-02-07 251-973-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E BELLEFONTN AL
2019-01-22 251-385-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E MOBILE AL
2019-01-09 251-727-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E BREWTON AL
2019-01-09 251-727-6XXX 6000–6999Assigned ONVOY, LLC - AL 604E BREWTON AL
2019-01-08 251-257-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BELLEFONTN AL
2019-01-08 251-900-0XXX 0000–0999Assigned ONVOY, LLC - AL 604E EXCEL AL
2019-01-07 251-277-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 MOBILE AL
2019-01-03 251-235-8XXX 8000–8999Assigned ONVOY, LLC - AL 604E MCINTOSH AL
2019-01-03 251-237-8XXX 8000–8999Assigned ONVOY, LLC - AL 604E FLOMATON AL
2019-01-03 251-244-1XXX 1000–1999Assigned ONVOY, LLC - AL 604E PETERMAN AL
2019-01-03 251-273-8XXX 8000–8999Assigned ONVOY, LLC - AL 604E CITRONELLE AL
2019-01-03 251-309-0XXX 0000–0999Assigned ONVOY, LLC - AL 604E BAYOUBATRE AL
2019-01-03 251-309-1XXX 1000–1999Assigned ONVOY, LLC - AL 604E BAYOUBATRE AL
2019-01-03 251-312-8XXX 8000–8999Assigned ONVOY, LLC - AL 604E REPTON AL
2019-01-03 251-312-9XXX 9000–9999Assigned ONVOY, LLC - AL 604E REPTON AL
2019-01-03 251-313-0XXX 0000–0999Assigned ONVOY, LLC - AL 604E DAUPHIN IS AL
2019-01-03 251-313-1XXX 1000–1999Assigned ONVOY, LLC - AL 604E DAUPHIN IS AL
2019-01-03 251-322-1XXX 1000–1999Assigned ONVOY, LLC - AL 604E ATMORE AL
2019-01-03 251-351-0XXX 0000–0999Assigned ONVOY, LLC - AL 604E BEATRICE AL
2019-01-03 251-359-9XXX 9000–9999Assigned ONVOY, LLC - AL 604E ATMORE AL
2019-01-03 251-451-0XXX 0000–0999Assigned ONVOY, LLC - AL 604E GOSPORT AL
2019-01-03 251-551-0XXX 0000–0999Assigned ONVOY, LLC - AL 604E PINE APPLE AL
2019-01-03 251-577-8XXX 8000–8999Assigned ONVOY, LLC - AL 604E MCCULLOUGH AL
2019-01-03 251-714-1XXX 1000–1999Assigned ONVOY, LLC - AL 604E FINCHBURG AL
2019-01-03 251-862-0XXX 0000–0999Assigned ONVOY, LLC - AL 604E URIAH AL
2019-01-03 251-873-1XXX 1000–1999Assigned ONVOY, LLC - AL 604E FOWL RIVER AL
2019-01-03 251-931-6XXX 6000–6999Assigned ONVOY, LLC - AL 604E CLEAR SPG AL
2019-01-03 251-931-8XXX 8000–8999Assigned ONVOY, LLC - AL 604E CLEAR SPG AL
2018-12-28 251-223-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 FOLEY 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.