Cloudflare — IPv4
Text list of IPv4 ranges used on the Cloudflare network.
Cloudflare
Cloudflare publishes IPv4 and IPv6 addresses used by its reverse-proxy and CDN edge for allowlisting origin firewalls.
Autonomous systems
Announced autonomous systems
Cloudflare operates additional ASNs in some regions; confirm live BGP for critical allowlists.
Announced under this company
AS13335AS209242
Published ranges
Official documentation and feeds for each product—open the links for current ranges and verification guidance.
Cloudflare — IPv6
Text list of IPv6 ranges used on the Cloudflare network.