HTTPfy

AS22168 The Shadowserver Foundation, Inc.

SHADOWSERVER-FOUNDATION - The Shadowserver Foundation, Inc. · registered in the United States

IPv4 addresses8,96027 prefixes · <0.001% of announced IPv4
Rank in United States#3,111largest network in US by IPv4 space, of 18,338 · <0.01% of US
Rank worldwide#9,762of 79,396 networks with IPv4
IPv62 x /482 prefixes
CountryUnited States18,679 ASNs registered there

IPv4 prefixes

All 27 prefixes, in address order.

  • 45.143.160.0/24
  • 50.114.88.0/24
  • 108.165.44.0/24
  • 146.19.20.0/24
  • 154.9.2.0/23
  • 154.16.223.0/24
  • 154.16.230.0/24
  • 154.16.240.0/24
  • 154.16.250.0/24
  • 162.249.64.0/21
  • 166.0.195.0/24
  • 179.61.168.0/24
  • 181.41.192.0/24
  • 181.214.62.0/24
  • 181.214.90.0/24
  • 181.214.234.0/24
  • 181.214.245.0/24
  • 181.215.138.0/24
  • 181.215.145.0/24
  • 181.215.208.0/24
  • 185.91.204.0/24
  • 185.181.1.0/24
  • 191.96.20.0/24
  • 191.96.22.0/24
  • 191.96.127.0/24
  • 191.101.103.0/24
  • 199.165.159.0/24

IPv6 prefixes

All 2 prefixes.

  • 2001:550:d0c::/48
  • 2620:24:c040::/48

Similar-sized networks in United States

ASNNameIPv4 addresses
AS26499#3108 VATECH-DCMETRO - Virginia Polytechnic Institute and State Univ.8,960
AS202276#3109 ibossripe IBOSS, INC8,960
AS19738#3110 ASSURANT-ATL01INET - Assurant, Inc.8,960
AS26229#3112 US-SEC - U.S. Securities & Exchange Commission8,960
AS6995#3113 VRIS-6995 - Verizon Business8,960
AS11319#3114 DDMINC - Deseret Digital Media, Inc.8,960

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources