NumberResearch Membership · Data 09/20/2026

Thousands-blocks in 410-696

This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

The ten 1,000-number thousand-blocks inside prefix 410-696 and who was initially assigned each. Under pooling these blocks often belong to different carriers — the single prefix-level “assignee” is usually just the pool / code holder, not who holds the numbers. ← all 410 blocks

Most active assignees, all time — NPA 410
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 3
LEVEL 3 COMMUNICATIONS, LLC - MD 3
YMAX COMMUNICATIONS CORP. - MD 1
QUANTUM TELECOMMUNICATIONS, INC. - MD 1
IP HORIZON 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
2016-05-03 410-696-0XXX 0000–0999Assigned IP HORIZON LLC 515J ELLICOTTCY MD
— 410-696-1XXX 1000–1999Reserved MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 7228 ELLICOTTCY MD
2005-02-11 410-696-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J ELLICOTTCY MD
2005-06-06 410-696-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 7228 ELLICOTTCY MD
2009-09-29 410-696-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MD 6119 ELLICOTTCY MD
2008-02-01 410-696-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MD 6119 ELLICOTTCY MD
2016-01-04 410-696-6XXX 6000–6999Assigned QUANTUM TELECOMMUNICATIONS, INC. - MD 2596 ELLICOTTCY MD
2008-05-06 410-696-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MD 6119 ELLICOTTCY MD
2009-01-30 410-696-8XXX 8000–8999Assigned YMAX COMMUNICATIONS CORP. - MD 281E ELLICOTTCY MD
— 410-696-9XXX 9000–9999Reserved MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 7228 ELLICOTTCY MD

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.