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
2021-06-30 251-335-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E MELVIN AL
2021-06-29 251-207-6XXX 6000–6999Assigned ONVOY, LLC - AL 604E BELLEFONTN AL
2021-06-29 251-235-6XXX 6000–6999Assigned ONVOY, LLC - AL 604E MCINTOSH AL
2021-06-29 251-293-7XXX 7000–7999Assigned ONVOY, LLC - AL 604E BELLEFONTN AL
2021-06-29 251-297-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E FLOMATON AL
2021-06-29 251-315-6XXX 6000–6999Assigned ONVOY, LLC - AL 604E EVERGREEN AL
2021-06-29 251-315-7XXX 7000–7999Assigned ONVOY, LLC - AL 604E EVERGREEN AL
2021-06-29 251-337-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E REPTON AL
2021-06-29 251-339-2XXX 2000–2999Assigned ONVOY, LLC - AL 604E GOSPORT AL
2021-06-29 251-347-2XXX 2000–2999Assigned ONVOY, LLC - AL 604E URIAH AL
2021-06-29 251-353-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E PETERMAN AL
2021-06-29 251-354-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E GROVE HILL AL
2021-06-29 251-390-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E BAYOUBATRE AL
2021-06-29 251-390-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E BAYOUBATRE AL
2021-06-29 251-397-8XXX 8000–8999Assigned ONVOY, LLC - AL 604E DAUPHIN IS AL
2021-06-29 251-420-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E BEATRICE AL
2021-06-29 251-430-8XXX 8000–8999Assigned ONVOY, LLC - AL 604E COFFEEVL AL
2021-06-29 251-440-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E FRISCOCITY AL
2021-06-29 251-440-8XXX 8000–8999Assigned ONVOY, LLC - AL 604E FRISCOCITY AL
2021-06-29 251-448-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E MCCULLOUGH AL
2021-06-29 251-449-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E FINCHBURG AL
2021-06-29 251-480-7XXX 7000–7999Assigned ONVOY, LLC - AL 604E MONROEVL AL
2021-06-29 251-480-9XXX 9000–9999Assigned ONVOY, LLC - AL 604E MONROEVL AL
2021-06-29 251-515-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E BAYMINETTE AL
2021-06-29 251-515-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E BAYMINETTE AL
2021-06-29 251-530-7XXX 7000–7999Assigned ONVOY, LLC - AL 604E PINE APPLE AL
2021-06-29 251-615-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E FAIRHOPE AL
2021-06-29 251-615-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E FAIRHOPE AL
2021-06-29 251-699-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E IRNGTNSTEL AL
2021-06-29 251-868-6XXX 6000–6999Assigned ONVOY, LLC - AL 604E BREWTON AL
2021-06-29 251-868-7XXX 7000–7999Assigned ONVOY, LLC - AL 604E BREWTON AL
2021-06-29 251-877-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E FOWL RIVER AL
2021-06-29 251-880-2XXX 2000–2999Assigned ONVOY, LLC - AL 604E ATMORE AL
2021-06-29 251-880-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E ATMORE AL
2021-06-29 251-900-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E EXCEL AL
2021-06-28 251-699-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F IRNGTNSTEL AL
2021-06-23 251-208-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2021-06-23 251-358-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2021-06-23 251-358-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2021-06-23 251-358-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2021-06-23 251-358-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2021-06-23 251-358-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2021-06-23 251-358-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2021-06-23 251-358-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2021-06-23 251-358-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2021-06-23 251-358-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2021-06-23 251-465-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2021-06-23 251-901-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2021-06-23 251-901-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2021-06-23 251-901-7XXX 7000–7999Assigned 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.