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 315
BANDWIDTH.COM CLEC, LLC - NY 644
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
2025-09-10 315-202-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E WATERVILLE NY
2024-11-25 315-582-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E GOUVERNEUR NY
2024-09-27 315-494-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E MARCELLUS NY
2023-08-15 315-979-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E CARTHAGE NY
2023-08-14 315-220-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E WATERLOO NY
2023-08-14 315-828-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E GENEVA NY
2023-05-09 315-366-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E ONEIDA NY
2023-05-03 315-900-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SEMPRONIUS NY
2023-05-03 315-900-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SEMPRONIUS NY
2023-04-11 315-230-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E GENEVA NY
2023-03-21 315-621-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E POTSDAM NY
2022-10-05 315-586-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E WATERTOWN NY
2022-09-21 315-315-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SYRACUSE NY
2022-09-21 315-315-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SYRACUSE NY
2022-09-21 315-315-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SYRACUSE NY
2022-09-21 315-315-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SYRACUSE NY
2022-09-21 315-315-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SYRACUSE NY
2022-09-21 315-315-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SYRACUSE NY
2022-09-21 315-315-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SYRACUSE NY
2022-09-21 315-315-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SYRACUSE NY
2022-09-21 315-315-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SYRACUSE NY
2022-09-21 315-315-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SYRACUSE NY
2022-07-18 315-512-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E HARRISVL NY
2022-01-24 315-260-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E MUNNSVILLE NY
2021-12-10 315-614-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E OGDENSBURG NY
2021-11-18 315-962-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E CAZENOVIA NY
2021-10-26 315-334-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E ROME NY
2021-10-26 315-612-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E AUBURN NY
2021-10-26 315-612-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E AUBURN NY
2021-10-26 315-617-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E ROME NY
2021-09-28 315-612-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E AUBURN NY
2021-09-28 315-617-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E ROME NY
2021-08-24 315-526-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E FAYETTEVL NY
2021-03-26 315-239-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SENECA FLS NY
2021-03-26 315-239-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SENECA FLS NY
2021-03-26 315-239-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SENECA FLS NY
2020-11-02 315-409-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E LIVERPOOL NY
2020-11-02 315-944-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E LIVERPOOL NY
2020-10-14 315-303-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E BALDWINSVL NY
2020-10-14 315-352-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E BALDWINSVL NY
2020-07-24 315-962-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E CAZENOVIA NY
2020-07-10 315-275-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E UTICA NY
2020-07-10 315-698-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E CICERO NY
2020-07-07 315-362-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SYRACUSE NY
2020-05-06 315-530-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SYRACUSE NY
2020-03-11 315-887-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E FULTON NY
2020-01-24 315-204-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E W WINFIELD NY
2020-01-24 315-653-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SO OTSELIC NY
2020-01-23 315-852-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E DE RUYTER NY
2020-01-23 315-855-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E LEONARDSVL 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.