NumberResearch Membership · Data 09/26/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/26/2026

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, all time — NPA 585
FINGER LAKES TECHNOLOGIES GROUP, INC. - NY 27
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
2022-06-10 585-574-1XXX 1000–1999Assigned FINGER LAKES TECHNOLOGIES GROUP, INC. - NY 629E ROCHESTER NY
2022-06-10 585-574-2XXX 2000–2999Assigned FINGER LAKES TECHNOLOGIES GROUP, INC. - NY 629E ROCHESTER NY
2022-06-10 585-574-3XXX 3000–3999Assigned FINGER LAKES TECHNOLOGIES GROUP, INC. - NY 629E ROCHESTER NY
2022-06-10 585-574-4XXX 4000–4999Assigned FINGER LAKES TECHNOLOGIES GROUP, INC. - NY 629E ROCHESTER NY
2022-06-10 585-574-5XXX 5000–5999Assigned FINGER LAKES TECHNOLOGIES GROUP, INC. - NY 629E ROCHESTER NY
2022-06-10 585-574-6XXX 6000–6999Assigned FINGER LAKES TECHNOLOGIES GROUP, INC. - NY 629E ROCHESTER NY
2022-06-10 585-574-7XXX 7000–7999Assigned FINGER LAKES TECHNOLOGIES GROUP, INC. - NY 629E ROCHESTER NY
2022-06-10 585-574-8XXX 8000–8999Assigned FINGER LAKES TECHNOLOGIES GROUP, INC. - NY 629E ROCHESTER NY
2022-06-10 585-574-9XXX 9000–9999Assigned FINGER LAKES TECHNOLOGIES GROUP, INC. - NY 629E ROCHESTER NY
2022-06-10 585-895-0XXX 0000–0999Assigned FINGER LAKES TECHNOLOGIES GROUP, INC. - NY 629E ROCHESTER NY
2022-04-11 585-551-3XXX 3000–3999Assigned FINGER LAKES TECHNOLOGIES GROUP, INC. - NY 629E ROCHESTER NY
2022-04-11 585-551-4XXX 4000–4999Assigned FINGER LAKES TECHNOLOGIES GROUP, INC. - NY 629E ROCHESTER NY
2022-04-11 585-551-7XXX 7000–7999Assigned FINGER LAKES TECHNOLOGIES GROUP, INC. - NY 629E ROCHESTER NY
2022-04-11 585-551-8XXX 8000–8999Assigned FINGER LAKES TECHNOLOGIES GROUP, INC. - NY 629E ROCHESTER NY
2022-04-11 585-551-9XXX 9000–9999Assigned FINGER LAKES TECHNOLOGIES GROUP, INC. - NY 629E ROCHESTER NY
2017-09-07 585-800-2XXX 2000–2999Assigned FINGER LAKES TECHNOLOGIES GROUP, INC. - NY 629E BOLIVAR NY
2017-09-07 585-900-4XXX 4000–4999Assigned FINGER LAKES TECHNOLOGIES GROUP, INC. - NY 629E CHAFFEE NY
2017-09-07 585-999-4XXX 4000–4999Assigned FINGER LAKES TECHNOLOGIES GROUP, INC. - NY 629E JAVA NY
2015-11-10 585-433-9XXX 9000–9999Assigned FINGER LAKES TECHNOLOGIES GROUP, INC. - NY 629E VICTOR NY
2015-11-10 585-978-8XXX 8000–8999Assigned FINGER LAKES TECHNOLOGIES GROUP, INC. - NY 629E ROCHESTER NY
2015-07-31 585-337-4XXX 4000–4999Assigned FINGER LAKES TECHNOLOGIES GROUP, INC. - NY 629E CANANDAGUA NY
2013-03-12 585-433-6XXX 6000–6999Assigned FINGER LAKES TECHNOLOGIES GROUP, INC. - NY 629E VICTOR NY
2011-05-27 585-888-8XXX 8000–8999Assigned FINGER LAKES TECHNOLOGIES GROUP, INC. - NY 629E SCOTTSVL NY
2011-05-25 585-657-2XXX 2000–2999Assigned FINGER LAKES TECHNOLOGIES GROUP, INC. - NY 629E HOLCOMB NY
2010-01-28 585-433-2XXX 2000–2999Assigned FINGER LAKES TECHNOLOGIES GROUP, INC. - NY 629E VICTOR NY
2010-01-28 585-919-2XXX 2000–2999Assigned FINGER LAKES TECHNOLOGIES GROUP, INC. - NY 629E CANANDAGUA NY
2009-07-27 585-851-0XXX 0000–0999Assigned FINGER LAKES TECHNOLOGIES GROUP, INC. - NY 629E ROCHESTER NY

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.