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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2021-12-22 585-665-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H OAKFIELD NY
2021-12-22 585-665-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H OAKFIELD NY
2021-12-21 585-686-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H HOLLEY NY
2021-12-21 585-686-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H HOLLEY NY
2021-12-20 585-375-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H OLEAN NY
2021-12-20 585-375-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H OLEAN NY
2021-12-20 585-655-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H EASTAURORA NY
2021-12-20 585-655-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H EASTAURORA NY
2021-12-14 585-604-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 BATAVIA NY
2021-12-14 585-606-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 EROCHESTER NY
2021-12-10 585-524-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 BATAVIA NY
2021-12-08 585-557-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 ROCHESTER NY
2021-12-07 585-562-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E ATTICA NY
2021-12-07 585-603-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J ROCHESTER NY
2021-12-03 585-614-4XXX 4000–4999Assigned ONVOY, LLC- NY 384C SHORTSVL NY
2021-11-22 585-895-8XXX 8000–8999Assigned TWILIO INTERNATIONAL, INC. 506J ROCHESTER NY
2021-11-19 585-605-0XXX 0000–0999Assigned TELNYX LLC 073H FILLMORE NY
2021-11-17 585-641-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 EROCHESTER NY
2021-11-10 585-557-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 ROCHESTER NY
2021-11-10 585-557-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 ROCHESTER NY
2021-11-10 585-557-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 ROCHESTER NY
2021-11-10 585-557-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 ROCHESTER NY
2021-11-10 585-557-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 ROCHESTER NY
2021-11-09 585-495-4XXX 4000–4999Assigned ONVOY, LLC- NY 384C WYOMING NY
2021-10-29 585-408-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H ARCADE NY
2021-10-29 585-408-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H ARCADE NY
2021-10-29 585-480-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H MIDDLEPORT NY
2021-10-29 585-480-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H MIDDLEPORT NY
2021-10-29 585-523-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H WATERPORT NY
2021-10-29 585-566-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H BLISS NY
2021-10-29 585-570-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H FRIENDSHIP NY
2021-10-29 585-570-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H FRIENDSHIP NY
2021-10-29 585-580-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H ANGELICA NY
2021-10-29 585-597-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H CORFU NY
2021-10-29 585-599-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H CORFU NY
2021-10-29 585-605-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H FILLMORE NY
2021-10-29 585-605-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H FILLMORE NY
2021-10-29 585-650-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H RUSHFORD NY
2021-10-29 585-650-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H RUSHFORD NY
2021-10-29 585-799-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H BYRON NY
2021-10-29 585-799-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H BYRON NY
2021-10-28 585-373-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H OLEAN NY
2021-10-28 585-373-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H OLEAN NY
2021-10-28 585-560-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H MEDINA NY
2021-10-28 585-560-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H MEDINA NY
2021-10-28 585-837-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H BATAVIA NY
2021-10-28 585-837-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H BATAVIA NY
2021-10-26 585-501-7XXX 7000–7999Assigned ONVOY, LLC- NY 384C HONEOYEFLS NY
2021-10-26 585-501-8XXX 8000–8999Assigned ONVOY, LLC- NY 384C HONEOYEFLS NY
2021-10-20 585-401-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H WYOMING 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.