Data as of Nov 10, 2026
Autonomous system

AS1742

Harvard University

Announces 203,520 addresses in 13 prefixes. None of it is anonymizer space.

Type
Education
US
Proxy activity, 30 days
64 exits

Announced prefixes

Arrived
PrefixTypeProxy exitsHolderRPKI
65.112.0.0/20
since May 2005
Business41
2 always on
CenturyLink Communications, LLC
67.134.204.0/22
since Feb 2006
Business19CenturyLink Communications, LLC
128.103.0.0/16
since May 2005
Business
131.142.0.0/16
since May 2005
BusinessSmithsonian Astrophysical Observatory
140.247.0.0/16
since Oct 2010
Business5
1 always on
140.247.111.0/24
since Sep 18, 2026
Business
140.247.152.0/24
since Sep 18, 2026
Business
140.247.174.0/24
since Sep 18, 2026
Business
140.247.236.0/24
since Sep 18, 2026
Business
192.5.66.0/24
since May 2005
Business
192.54.223.0/24
since Sep 2008
Business
192.131.102.0/24
since Oct 2010
Business
199.94.60.0/22
since Aug 2016
BusinessLevel 3 Parent, LLC

Residential-proxy exposure

Always-on exits
3
4.7% of its exits
Spread
8
/24s with at least one exit
Providers
67
selling exits here

/24s with the most always-on exits

Proxy providers listing exits

  • 711Proxy
  • Ake.net
  • AnyIP
  • B2Proxy
  • BartProxies
  • BirdProxies
  • BottingTools
  • BuyingProxy
  • ByteProxies
  • Byteful
  • CatProxies
  • ColaProxy
  • Datarama
  • EZProxies
  • Elusive
  • EnigmaProxy
  • Evomi
  • FastProxy
  • FlexyProxies
  • FloppyData
  • GSocks
  • Geonix
  • Geonode
  • GhostConnect
  • GloryCloud
  • GonzoProxy
  • HideProxy
  • HydraProxy
  • IPMUSK
  • IPOasis
  • IPPeak
  • IPRoyal
  • Infatica
  • InfiniteProxies
  • KindProxy
  • KocerRoxy
  • Kookey
  • LemonBright
  • LemonLabs
  • LemonPrime
  • LudaxProxy
  • MangoProxy
  • MoMoProxy
  • NextProxy
  • NodeProxy
  • NovaProxy
  • PrivateProxy
  • ProxiesVision
  • Proxiware
  • Proxy-Seller
  • ProxyEmpire
  • ProxyGeo
  • ProxyHat
  • ProxyRack
  • ProxyStyler
  • Proxyma
  • RainProxy
  • ResiProxies
  • Shifter
  • Thordata
  • ThunderProxy
  • VantageProxies
  • VibeProxies
  • VitalData
  • VitalExclusive
  • WealthProxies
  • ZENPROXY_PREMIUM

Proxy activity

Oct 11, 2026 – Nov 8, 2026

AS1742, day by day

13K observations
  • Residential
  • Business

Network & history

The space it routes itself

Address share by type

Routing patterns

How its announcements have moved

Arrivals

Year each prefix's current origin began announcing it