NumberResearch Membership · Data 09/20/2026

Thousands-blocks in 703-552

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 703-552 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 703 blocks

Most active assignees, all time — NPA 703
MCIMETRO ACCESS TRANSMISSION SERVICES LLC 5
PEERLESS NETWORK OF VIRGINIA, LLC - VA 2
PAETEC ITEL, LLC 1
ONVOY, LLC - VA 1
BANDWIDTH.COM CLEC, LLC - VA 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
— 703-552-0XXX 0000–0999Reserved MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DULLESMTRO VA
— 703-552-1XXX 1000–1999Reserved MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DULLESMTRO VA
— 703-552-2XXX 2000–2999Reserved MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DULLESMTRO VA
— 703-552-3XXX 3000–3999Reserved MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DULLESMTRO VA
2011-03-09 703-552-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F DULLESMTRO VA
2019-01-31 703-552-5XXX 5000–5999Assigned ONVOY, LLC - VA 138E DULLESMTRO VA
2013-08-26 703-552-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J DULLESMTRO VA
— 703-552-7XXX 7000–7999Reserved MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DULLESMTRO VA
2013-04-08 703-552-8XXX 8000–8999Assigned PEERLESS NETWORK OF VIRGINIA, LLC - VA 275G DULLESMTRO VA
2018-09-04 703-552-9XXX 9000–9999Assigned PEERLESS NETWORK OF VIRGINIA, LLC - VA 275G DULLESMTRO VA

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.