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

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
• 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
• 199.27.128.0/21

Also available as a IPv4 text list.

IPv6

• 2400:cb00::/32
• 2405:8100::/32
• 2405:b500::/32
• 2606:4700::/32
• 2803:f800::/32

Also available as a IPv6 text list.