NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

5 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 585
EXIANT COMMUNICATIONS LLC 3
TC SYSTEMS, INC. - NY 1
NEW CINGULAR WIRELESS PCS, LLC - DC 1
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
2021-01-19 585-390-8XXX 8000–8999Assigned TELNYX LLC 073H BYRON NY
2021-01-19 585-541-1XXX 1000–1999Assigned TELNYX LLC 073H CASTILE NY
2021-01-19 585-552-0XXX 0000–0999Assigned TELNYX LLC 073H COHOCTON NY
2021-01-15 585-580-6XXX 6000–6999Assigned ONVOY, LLC- NY 384C ANGELICA NY
2021-01-15 585-580-7XXX 7000–7999Assigned ONVOY, LLC- NY 384C ANGELICA NY
2021-01-15 585-774-4XXX 4000–4999Assigned ONVOY, LLC- NY 384C ALBION NY
2021-01-15 585-774-5XXX 5000–5999Assigned ONVOY, LLC- NY 384C ALBION NY
2021-01-12 585-488-1XXX 1000–1999Assigned TELNYX LLC 073H SPENCERPT NY
2021-01-07 585-788-6XXX 6000–6999Assigned ONVOY, LLC- NY 384C VICTOR NY
2021-01-07 585-788-7XXX 7000–7999Assigned ONVOY, LLC- NY 384C VICTOR NY
2021-01-07 585-788-8XXX 8000–8999Assigned ONVOY, LLC- NY 384C VICTOR NY
2021-01-06 585-553-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 BATAVIA NY
2021-01-06 585-553-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 BATAVIA NY
2021-01-04 585-252-4XXX 4000–4999Assigned ONVOY, LLC- NY 384C PAVILION NY
2021-01-04 585-252-6XXX 6000–6999Assigned ONVOY, LLC- NY 384C PAVILION NY
2021-01-04 585-401-4XXX 4000–4999Assigned ONVOY, LLC- NY 384C WYOMING NY
2021-01-04 585-401-5XXX 5000–5999Assigned ONVOY, LLC- NY 384C WYOMING NY
2021-01-04 585-401-6XXX 6000–6999Assigned ONVOY, LLC- NY 384C WYOMING NY
2021-01-04 585-460-6XXX 6000–6999Assigned ONVOY, LLC- NY 384C CALEDONIA NY
2021-01-04 585-460-7XXX 7000–7999Assigned ONVOY, LLC- NY 384C CALEDONIA NY
2021-01-04 585-460-9XXX 9000–9999Assigned ONVOY, LLC- NY 384C CALEDONIA NY
2021-01-04 585-501-5XXX 5000–5999Assigned ONVOY, LLC- NY 384C HONEOYEFLS NY
2021-01-04 585-501-6XXX 6000–6999Assigned ONVOY, LLC- NY 384C HONEOYEFLS NY
2021-01-04 585-508-5XXX 5000–5999Assigned ONVOY, LLC- NY 384C HOLCOMB NY
2021-01-04 585-508-6XXX 6000–6999Assigned ONVOY, LLC- NY 384C HOLCOMB NY
2021-01-04 585-508-7XXX 7000–7999Assigned ONVOY, LLC- NY 384C HOLCOMB NY
2021-01-04 585-513-5XXX 5000–5999Assigned ONVOY, LLC- NY 384C BERGEN NY
2021-01-04 585-513-6XXX 6000–6999Assigned ONVOY, LLC- NY 384C BERGEN NY
2021-01-04 585-541-4XXX 4000–4999Assigned ONVOY, LLC- NY 384C CASTILE NY
2021-01-04 585-541-5XXX 5000–5999Assigned ONVOY, LLC- NY 384C CASTILE NY
2021-01-04 585-549-4XXX 4000–4999Assigned ONVOY, LLC- NY 384C GENESEO NY
2021-01-04 585-549-5XXX 5000–5999Assigned ONVOY, LLC- NY 384C GENESEO NY
2021-01-04 585-552-6XXX 6000–6999Assigned ONVOY, LLC- NY 384C COHOCTON NY
2021-01-04 585-552-7XXX 7000–7999Assigned ONVOY, LLC- NY 384C COHOCTON NY
2021-01-04 585-572-2XXX 2000–2999Assigned ONVOY, LLC- NY 384C LIVONIA NY
2021-01-04 585-572-4XXX 4000–4999Assigned ONVOY, LLC- NY 384C LIVONIA NY
2021-01-04 585-575-5XXX 5000–5999Assigned ONVOY, LLC- NY 384C HONEOYE NY
2021-01-04 585-575-7XXX 7000–7999Assigned ONVOY, LLC- NY 384C HONEOYE NY
2021-01-04 585-577-6XXX 6000–6999Assigned ONVOY, LLC- NY 384C CANANDAGUA NY
2021-01-04 585-577-9XXX 9000–9999Assigned ONVOY, LLC- NY 384C CANANDAGUA NY
2021-01-04 585-595-5XXX 5000–5999Assigned ONVOY, LLC- NY 384C HEMLOCK NY
2021-01-04 585-595-6XXX 6000–6999Assigned ONVOY, LLC- NY 384C HEMLOCK NY
2021-01-04 585-601-6XXX 6000–6999Assigned ONVOY, LLC- NY 384C HENRIETTA NY
2021-01-04 585-601-7XXX 7000–7999Assigned ONVOY, LLC- NY 384C HENRIETTA NY
2021-01-04 585-601-8XXX 8000–8999Assigned ONVOY, LLC- NY 384C HENRIETTA NY
2021-01-04 585-634-4XXX 4000–4999Assigned ONVOY, LLC- NY 384C RUSHVILLE NY
2021-01-04 585-634-6XXX 6000–6999Assigned ONVOY, LLC- NY 384C RUSHVILLE NY
2021-01-04 585-639-7XXX 7000–7999Assigned ONVOY, LLC- NY 384C BROCKPORT NY
2021-01-04 585-639-8XXX 8000–8999Assigned ONVOY, LLC- NY 384C BROCKPORT NY
2021-01-04 585-990-7XXX 7000–7999Assigned ONVOY, LLC- NY 384C NUNDA NY

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.