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Under Attack?

IP Ranges

Some applications or host providers might find it handy to know about Cloudflare’s IPs. This page is intended to be the definitive source of Cloudflare’s current IP ranges.

IPv4

  • 103.21.244.0/22
  • 103.22.200.0/22
  • 103.31.4.0/22
  • 104.16.0.0/12
  • 108.162.192.0/18
  • 131.0.72.0/22
  • 141.101.64.0/18
  • 162.158.0.0/15
  • 172.64.0.0/13
  • 173.245.48.0/20
  • 188.114.96.0/20
  • 190.93.240.0/20
  • 197.234.240.0/22
  • 198.41.128.0/17

Also available as a IPv4 text list.

IPv6

  • 2400:cb00::/32
  • 2405:b500::/32
  • 2606:4700::/32
  • 2803:f800::/32
  • 2c0f:f248::/32
  • 2a06:98c0::/29

Also available as a IPv6 text list.