NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

1 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 917
HADLO TECHNOLOGIES, LLC 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
2010-12-15 917-397-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN14 NY
2010-12-15 917-397-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN14 NY
2010-12-15 917-397-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN14 NY
2010-12-15 917-397-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN14 NY
2010-11-23 917-503-0XXX 0000–0999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NWYRCYZN01 NY
2010-11-23 917-503-1XXX 1000–1999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NWYRCYZN01 NY
2010-11-23 917-503-2XXX 2000–2999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NWYRCYZN01 NY
2010-11-23 917-503-3XXX 3000–3999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NWYRCYZN01 NY
2010-11-23 917-503-4XXX 4000–4999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NWYRCYZN01 NY
2010-11-23 917-503-5XXX 5000–5999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NWYRCYZN01 NY
2010-11-23 917-503-6XXX 6000–6999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NWYRCYZN01 NY
2010-11-23 917-503-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NWYRCYZN01 NY
2010-11-23 917-503-8XXX 8000–8999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NWYRCYZN01 NY
2010-11-19 917-382-6XXX 6000–6999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NWYRCYZN08 NY
2010-11-19 917-382-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NWYRCYZN08 NY
2010-11-03 917-387-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN12 NY
2010-11-01 917-310-6XXX 6000–6999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NWYRCYZN06 NY
2010-11-01 917-310-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NWYRCYZN06 NY
2010-11-01 917-310-9XXX 9000–9999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NWYRCYZN06 NY
2010-10-25 917-397-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN14 NY
2010-10-25 917-397-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN14 NY
2010-10-25 917-397-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN14 NY
2010-10-18 917-387-0XXX 0000–0999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NWYRCYZN12 NY
2010-10-18 917-387-1XXX 1000–1999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NWYRCYZN12 NY
2010-10-18 917-387-2XXX 2000–2999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NWYRCYZN12 NY
2010-10-18 917-387-3XXX 3000–3999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NWYRCYZN12 NY
2010-10-13 917-268-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN06 NY
2010-10-13 917-268-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN06 NY
2010-10-13 917-268-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN06 NY
2010-10-13 917-268-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN06 NY
2010-10-13 917-268-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN06 NY
2010-10-13 917-268-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN06 NY
2010-10-13 917-268-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN06 NY
2010-10-13 917-268-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN06 NY
2010-10-13 917-268-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN06 NY
2010-10-13 917-310-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN06 NY
2010-10-08 917-200-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN07 NY
2010-10-08 917-200-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN07 NY
2010-10-08 917-382-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN08 NY
2010-10-08 917-382-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN08 NY
2010-10-08 917-382-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN08 NY
2010-10-06 917-200-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN07 NY
2010-10-06 917-300-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN10 NY
2010-10-06 917-300-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN10 NY
2010-10-06 917-310-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN06 NY
2010-10-06 917-310-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN06 NY
2010-10-06 917-310-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN06 NY
2010-10-06 917-310-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN06 NY
2010-10-06 917-310-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN06 NY
2010-10-06 917-310-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN06 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.