AS27021 — AS-DGX

AS27021 announces 10 IPv4 prefixes covering 7,168 addresses and 0 IPv6 prefixes.

About this network

AS-DGX is held by Quest Diagnostics, Inc.

What it's used for

• The address space carries corporate and laboratory infrastructure, evidenced by netnames NET-DGX, QUEST, LABONE-NET, SLN, and CBTS-1196-MEDPLUS associated with registrants Quest Diagnostics, Inc., LabOne, Inc., Solstas Lab Partners, LLC, and MedPlus.
• The AS announces 7168 IPv4 addresses across 10 prefixes with 4 observed neighbours, a ratio indicating an internal corporate estate rather than a transit or access network.

Notable

• Registrants include Quest Diagnostics, Inc., LabOne, Inc., Solstas Lab Partners, LLC, Spectrum Laboratory, and MedPlus, reflecting a portfolio of acquired or affiliated laboratory entities.
• Quest Diagnostics is a major clinical laboratory services company; the presence of LabOne and Solstas Lab Partners suggests historical acquisitions or partnerships in the diagnostic testing sector.
• The inventory consists of 10 IPv4 prefixes with no IPv6 announcements, including a large /20 block and several smaller /23 and /24 blocks.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 65.199.254.0/24
• 156.30.5.0/24
• 156.30.24.0/24
• 204.235.142.0/23
• 209.242.240.0/23
• 209.242.247.0/24
• 209.242.248.0/24
• 209.242.250.0/23
• 216.195.72.0/24
• 216.203.80.0/20

Upstream networks

• AS3356 Level 3 Parent, LLC
• AS701 Verizon Business
• AS11992 Liberty Mobile Puerto Rico Inc.
• AS11367 WorldNet Telecommunications, LLC

Adjacent networks

• AS3356 Level 3 Parent, LLC
• AS701 Verizon Business
• AS11992 Liberty Mobile Puerto Rico Inc.
• AS11367 WorldNet Telecommunications, LLC