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 603
BANDWIDTH.COM CLEC, LLC - NH 30
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
2022-07-19 603-803-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NH 996E KEENE NH
2019-08-06 603-803-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NH 996E KEENE NH
2016-03-11 603-392-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NH 996E WINCHESTER NH
2016-03-11 603-417-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NH 996E NASHUA NH
2016-03-11 603-460-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NH 996E DEERFIELD NH
2016-03-11 603-931-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NH 996E CONCORD NH
2015-07-21 603-931-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NH 996E CONCORD NH
2010-12-15 603-718-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NH 996E NASHUA NH
2010-11-01 603-757-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NH 996E KEENE NH
2010-10-28 603-935-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NH 996E MANCHESTER NH
2008-06-06 603-716-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NH 996E MANCHESTER NH
2008-05-15 603-722-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NH 996E MANCHESTER NH
2007-08-22 603-706-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NH 996E RAYMOND NH
2006-08-23 603-707-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NH 996E MEREDITH NH
2006-05-25 603-212-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NH 996E SALEM NH
2006-05-25 603-319-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NH 996E PORTSMOUTH NH
2006-05-25 603-324-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NH 996E NASHUA NH
2006-05-25 603-410-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NH 996E CONCORD NH
2006-05-25 603-818-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NH 996E DERRY NH
2006-03-29 603-935-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NH 996E MANCHESTER NH
2002-09-10 603-790-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NH 996E W LEBANON NH
2002-09-09 603-239-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NH 996E WINCHESTER NH
2002-09-07 603-210-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NH 996E SUNCOOK NH
2002-09-07 603-367-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NH 996E MADISON NH
2002-09-07 603-435-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NH 996E PITTSFIELD NH
2002-09-07 603-565-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NH 996E PENACOOK NH
2002-08-28 603-267-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NH 996E BELMONT NH
2002-08-28 603-301-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NH 996E CTROSSIPEE NH
2002-08-28 603-460-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NH 996E DEERFIELD NH
2002-08-28 603-968-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NH 996E ASHLAND NH

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.