NumberResearch Membership · Data 09/20/2026

Thousands-blocks in 410-776

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 410-776 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
OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 5
TELEPORT COMMUNICATIONS AMERICA, LLC - MD 2
QUANTUM TELECOMMUNICATIONS, INC. - MD 1
PAETEC ITEL, LLC 1
COMCAST IP PHONE, 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
2003-10-22 410-776-0XXX 0000–0999Assigned QUANTUM TELECOMMUNICATIONS, INC. - MD 2596 BEL AIR MD
2011-08-16 410-776-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 BEL AIR MD
— 410-776-2XXX 2000–2999Reserved TELEPORT COMMUNICATIONS AMERICA, LLC - MD 7325 BEL AIR MD
2005-02-10 410-776-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J BEL AIR MD
2011-08-16 410-776-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 BEL AIR MD
2011-08-16 410-776-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 BEL AIR MD
— 410-776-6XXX 6000–6999Reserved TELEPORT COMMUNICATIONS AMERICA, LLC - MD 7325 BEL AIR MD
2005-03-09 410-776-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J BEL AIR MD
2011-08-16 410-776-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 BEL AIR MD
2011-08-16 410-776-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 BEL AIR 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.