LAYER3 INTEL
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Data as of Nov 7, 2026

216.203.80.0/21

1 residential-proxy exit · 30 days

Quest Diagnostics, Inc.

Announcement
this exact prefix
No RPKI
Announced by
AS27021
Type
Business

Residential-proxy exits

Proxy exits
1
0.05% of its addresses · 30 days
Spread
1 of 8
/24s with at least one exit
Providers
18
selling exits here
Oct 8, 2026 – Nov 6, 2026

Exits seen per day

126 observations

Proxy providers listing exits

  • AnyIP
  • Bright Data
  • Decodo
  • EnigmaProxy
  • FastProxy
  • FloppyData
  • Geonode
  • InfiniteProxies
  • LemonBright
  • LudaxProxy
  • NovaProxy
  • Oxylabs
  • ProxyEmpire
  • ProxyGeo
  • RainProxy
  • Thordata
  • VantageProxies
  • VitalExclusive

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
216.203.80.0/20
since May 2005
AS27021Business1Quest Diagnostics, Inc.
More specific

Announcements inside

PrefixOriginTypeProxy exitsHolderRPKI
216.203.80.0/24
since Jun 2021
AS27021Business1Quest Diagnostics, Inc.
216.203.87.0/24
since Jun 2010
AS27021BusinessQuest Diagnostics, Inc.

Network & registry

AnnouncementRouting historyWhois & abuse
Origin network

AS27021

US
Name
Quest Diagnostics, Inc.
Type
Business
Registered
Jan 14, 2003
Domain
questdiagnostics.com
Industry
Software Development
Spamhaus ASN-DROP
not listed