NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 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, all time — NPA 631
BANDWIDTH.COM CLEC, LLC - NY 276
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
2025-02-27 631-397-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E AMITYVILLE NY
2024-12-09 631-314-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E BABYLON NY
2022-10-11 631-631-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E FIREISLAND NY
2022-10-11 631-631-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E FIREISLAND NY
2022-10-11 631-631-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E FIREISLAND NY
2022-10-11 631-631-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E FIREISLAND NY
2022-10-11 631-631-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E FIREISLAND NY
2022-10-11 631-631-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E FIREISLAND NY
2022-10-11 631-631-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E FIREISLAND NY
2022-10-11 631-631-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E FIREISLAND NY
2022-10-11 631-631-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E FIREISLAND NY
2022-10-11 631-631-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E FIREISLAND NY
2022-09-01 631-743-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E PTJEFFERSN NY
2022-02-23 631-607-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E WADING RIV NY
2021-10-29 631-956-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E LINDENHST NY
2021-10-29 631-991-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E LINDENHST NY
2021-09-24 631-810-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E LINDENHST NY
2020-03-24 631-469-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E BRENTWOOD NY
2019-06-18 631-716-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SELDEN NY
2019-05-20 631-203-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E CENTRAISLP NY
2019-05-13 631-846-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SELDEN NY
2019-04-26 631-437-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E FIREISLAND NY
2018-09-18 631-310-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E PATCHOGUE NY
2018-09-18 631-310-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E PATCHOGUE NY
2018-09-18 631-800-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SOUTHAMPTN NY
2018-09-11 631-800-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SOUTHAMPTN NY
2018-05-10 631-203-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E CENTRAISLP NY
2018-04-30 631-975-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E CTRMORICHS NY
2017-06-29 631-491-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E MIDLAND NY
2016-06-22 631-256-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SAYVILLE NY
2016-06-22 631-490-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E ATLANTIC NY
2016-06-20 631-557-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E AMAGANSETT NY
2016-06-17 631-652-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SMITHTOWN NY
2016-06-11 631-215-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E BRENTWOOD NY
2016-04-11 631-201-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E AMITYVILLE NY
2015-08-27 631-909-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E CTRMORICHS NY
2015-07-17 631-260-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E BRENTWOOD NY
2015-05-15 631-296-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E BRIDGEMPTN NY
2015-04-30 631-552-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E AMITYVILLE NY
2015-04-23 631-213-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E MIDLAND NY
2015-04-23 631-246-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E STONYBROOK NY
2015-04-23 631-253-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E MIDLAND NY
2015-04-23 631-268-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SOUTHAMPTN NY
2015-04-23 631-268-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SOUTHAMPTN NY
2015-04-23 631-364-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E STONYBROOK NY
2015-01-26 631-636-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E BRENTWOOD NY
2014-11-12 631-743-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E PTJEFFERSN NY
2014-11-12 631-743-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E PTJEFFERSN NY
2014-08-12 631-296-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E BRIDGEMPTN NY
2014-08-04 631-825-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E MONTAUK PT 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.