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
2020-10-29 251-356-2XXX 2000–2999Assigned ONVOY, LLC - AL 604E FINCHBURG AL
2020-10-29 251-360-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E GROVE HILL AL
2020-10-29 251-360-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E GROVE HILL AL
2020-10-29 251-551-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E PINE APPLE AL
2020-10-29 251-551-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E PINE APPLE AL
2020-10-29 251-572-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E FRISCOCITY AL
2020-10-29 251-572-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E FRISCOCITY AL
2020-10-29 251-577-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E MCCULLOUGH AL
2020-10-29 251-655-2XXX 2000–2999Assigned ONVOY, LLC - AL 604E ATMORE AL
2020-10-29 251-714-2XXX 2000–2999Assigned ONVOY, LLC - AL 604E FINCHBURG AL
2020-10-29 251-758-0XXX 0000–0999Assigned ONVOY, LLC - AL 604E MT VERNON AL
2020-10-29 251-758-1XXX 1000–1999Assigned ONVOY, LLC - AL 604E MT VERNON AL
2020-10-29 251-766-0XXX 0000–0999Assigned ONVOY, LLC - AL 604E JACKSON AL
2020-10-29 251-766-1XXX 1000–1999Assigned ONVOY, LLC - AL 604E JACKSON AL
2020-10-29 251-866-8XXX 8000–8999Assigned ONVOY, LLC - AL 604E CITRONELLE AL
2020-10-29 251-868-2XXX 2000–2999Assigned ONVOY, LLC - AL 604E BREWTON AL
2020-10-29 251-868-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E BREWTON AL
2020-10-20 251-309-2XXX 2000–2999Assigned ONVOY, LLC - AL 604E BAYOUBATRE AL
2020-10-20 251-309-7XXX 7000–7999Assigned ONVOY, LLC - AL 604E BAYOUBATRE AL
2020-10-20 251-310-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E BELLEFONTN AL
2020-10-20 251-310-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E BELLEFONTN AL
2020-10-20 251-312-6XXX 6000–6999Assigned ONVOY, LLC - AL 604E REPTON AL
2020-10-20 251-312-7XXX 7000–7999Assigned ONVOY, LLC - AL 604E REPTON AL
2020-10-20 251-313-7XXX 7000–7999Assigned ONVOY, LLC - AL 604E DAUPHIN IS AL
2020-10-20 251-313-9XXX 9000–9999Assigned ONVOY, LLC - AL 604E DAUPHIN IS AL
2020-10-20 251-315-9XXX 9000–9999Assigned ONVOY, LLC - AL 604E EVERGREEN AL
2020-10-20 251-325-0XXX 0000–0999Assigned ONVOY, LLC - AL 604E BAYMINETTE AL
2020-10-20 251-325-1XXX 1000–1999Assigned ONVOY, LLC - AL 604E BAYMINETTE AL
2020-10-20 251-336-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E MONROEVL AL
2020-10-20 251-336-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E MONROEVL AL
2020-10-20 251-346-8XXX 8000–8999Assigned ONVOY, LLC - AL 604E EVERGREEN AL
2020-10-20 251-351-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E BEATRICE AL
2020-10-20 251-351-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E BEATRICE AL
2020-10-20 251-428-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E HUXFORD AL
2020-10-20 251-428-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E HUXFORD AL
2020-10-20 251-451-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E GOSPORT AL
2020-10-20 251-451-6XXX 6000–6999Assigned ONVOY, LLC - AL 604E GOSPORT AL
2020-10-20 251-512-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E COFFEEVL AL
2020-10-20 251-512-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E COFFEEVL AL
2020-10-19 251-810-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AL 8271 GRAND BAY AL
2020-10-01 251-501-5XXX 5000–5999Assigned TWILIO INTERNATIONAL, INC. 506J MOBILE AL
2020-09-24 251-699-9XXX 9000–9999Assigned FRACTEL, LLC 965H IRNGTNSTEL AL
2020-09-24 251-724-6XXX 6000–6999Assigned FRACTEL, LLC 965H MOBILE AL
2020-09-22 251-620-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 MOBILE AL
2020-09-14 251-335-1XXX 1000–1999Assigned NUSO, LLC 478J MELVIN AL
2020-09-08 251-336-2XXX 2000–2999Assigned TELNYX LLC 073H MONROEVL AL
2020-08-27 251-329-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2020-08-27 251-329-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2020-08-27 251-329-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2020-08-27 251-329-3XXX 3000–3999Assigned 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.