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
2021-10-08 585-568-0XXX 0000–0999Assigned TERRA NOVA TELECOM INC. 145J ROCHESTER NY
2021-10-05 585-361-4XXX 4000–4999Assigned ONVOY, LLC- NY 384C SHORTSVL NY
2021-10-05 585-361-8XXX 8000–8999Assigned ONVOY, LLC- NY 384C SHORTSVL NY
2021-10-05 585-566-7XXX 7000–7999Assigned ONVOY, LLC- NY 384C BLISS NY
2021-10-05 585-799-7XXX 7000–7999Assigned ONVOY, LLC- NY 384C BYRON NY
2021-10-05 585-981-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 OLEAN NY
2021-10-04 585-557-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 ROCHESTER NY
2021-10-04 585-557-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 ROCHESTER NY
2021-10-04 585-559-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 ROCHESTER NY
2021-10-04 585-910-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 ROCHESTER NY
2021-10-04 585-910-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 ROCHESTER NY
2021-10-04 585-910-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 ROCHESTER NY
2021-10-04 585-910-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 ROCHESTER NY
2021-10-04 585-937-9XXX 9000–9999Assigned TERRA NOVA TELECOM INC. 145J ALDEN NY
2021-09-24 585-578-0XXX 0000–0999Assigned COMMIO, LLC 939H CASTILE NY
2021-09-23 585-541-7XXX 7000–7999Assigned COMMIO, LLC 939H CASTILE NY
2021-09-23 585-541-8XXX 8000–8999Assigned COMMIO, LLC 939H CASTILE NY
2021-09-23 585-541-9XXX 9000–9999Assigned COMMIO, LLC 939H CASTILE NY
2021-09-23 585-799-9XXX 9000–9999Assigned FRACTEL, LLC 965H BYRON NY
2021-09-22 585-513-1XXX 1000–1999Assigned COMMIO, LLC 939H BERGEN NY
2021-09-22 585-513-7XXX 7000–7999Assigned COMMIO, LLC 939H BERGEN NY
2021-09-22 585-513-8XXX 8000–8999Assigned COMMIO, LLC 939H BERGEN NY
2021-09-22 585-513-9XXX 9000–9999Assigned COMMIO, LLC 939H BERGEN NY
2021-09-21 585-774-9XXX 9000–9999Assigned PEERING HUB, INC. - NY 818H ALBION NY
2021-09-09 585-910-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 ROCHESTER NY
2021-09-08 585-557-7XXX 7000–7999Assigned SKYE TELECOM LLC DBA SKYETEL 622J ROCHESTER NY
2021-09-02 585-710-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 ROCHESTER NY
2021-09-02 585-710-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 ROCHESTER NY
2021-09-02 585-710-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 ROCHESTER NY
2021-09-02 585-837-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 BATAVIA NY
2021-09-02 585-837-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 BATAVIA NY
2021-09-02 585-877-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 ROCHESTER NY
2021-08-31 585-933-9XXX 9000–9999Assigned TERRA NOVA TELECOM INC. 145J OLEAN NY
2021-08-25 585-883-7XXX 7000–7999Assigned METROPCS, INC. 5562 MT MORRIS NY
2021-08-20 585-505-6XXX 6000–6999Assigned ONVOY, LLC- NY 384C ROCHESTER NY
2021-08-12 585-745-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 ALBION NY
2021-08-11 585-540-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 ROCHESTER NY
2021-08-11 585-540-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 ROCHESTER NY
2021-07-29 585-817-8XXX 8000–8999Assigned ONVOY, LLC- NY 384C PAVILION NY
2021-07-21 585-361-6XXX 6000–6999Assigned ONVOY, LLC- NY 384C SHORTSVL NY
2021-07-21 585-361-7XXX 7000–7999Assigned ONVOY, LLC- NY 384C SHORTSVL NY
2021-07-16 585-523-4XXX 4000–4999Assigned ONVOY, LLC- NY 384C WATERPORT NY
2021-07-14 585-559-2XXX 2000–2999Assigned ONVOY, LLC- NY 384C ROCHESTER NY
2021-07-14 585-559-3XXX 3000–3999Assigned ONVOY, LLC- NY 384C ROCHESTER NY
2021-07-14 585-559-4XXX 4000–4999Assigned ONVOY, LLC- NY 384C ROCHESTER NY
2021-07-14 585-559-5XXX 5000–5999Assigned ONVOY, LLC- NY 384C ROCHESTER NY
2021-07-14 585-559-6XXX 6000–6999Assigned ONVOY, LLC- NY 384C ROCHESTER NY
2021-07-09 585-569-1XXX 1000–1999Assigned STRATUS NETWORKS 495J WARSAW NY
2021-07-07 585-556-6XXX 6000–6999Assigned ONVOY, LLC- NY 384C DARIEN NY
2021-07-01 585-522-6XXX 6000–6999Assigned ONVOY, LLC- NY 384C BELMONT 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.