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What are the CloudFlare IP address ranges


CloudFlare uses the following IPv4 address ranges:

  • 204.93.240.0/24 (204.93.240.0 - 204.93.240.255)
  • 204.93.177.0/24 (204.93.177.0 - 204.93.177.255)
  • 199.27.128.0/21 (199.27.128.0 - 199.27.135.255)
  • 173.245.48.0/20 (173.245.48.0 - 173.245.63.255)
  • 103.22.200.0/22 (103.22.200.0 - 103.22.203.255)
  • 141.101.64.0/18 (141.101.64.0 - 141.101.127.255)
  • 108.162.192.0/18 (108.162.192.0 - 108.162.255.255)
  • 190.93.240.0/20 (190.93.240.0-190.93.255.255)

CloudFlare uses the following IPv6 address ranges:

  • 2400:CB00:/32 (2400:CB00:0000:0000 - 2400:CB00:FFFF:FFFF)
  • 2606:4700:/32 (2606:4700:0000:0000 - 2606::4700:FFFF:FFFF)
  • 2803:f800:/32 (2803:f800:0:0:0:0:0:0 -2803:f800:FFFF:FFFF)
Retrieved from "http://www.cloudflare.com/wiki/What_are_the_CloudFlare_IP_address_ranges"