Cloudflare IP Ranges List

This page provides a comprehensive list of IP ranges used by Cloudflare's global network. These IP ranges are essential for network administrators and developers who need to configure their systems to work with Cloudflare's services.

Cloudflare IPv4 Ranges

103.21.244.0/22
103.22.200.0/22
103.31.4.0/22
141.101.64.0/18
190.93.240.0/20
188.114.96.0/20
197.234.240.0/22
131.0.72.0/22

Cloudflare IPv6 Ranges

2400:cb00::/32
2803:f800::/32
2405:b500::/32
2405:8100::/32
2a06:98c0::/29
2c0f:f248::/32

Looking for Cloudflare China IP Ranges?

If you need IP ranges specifically for Cloudflare's China network on JD Cloud, please visit our Cloudflare China IP Ranges List page for a comprehensive list of IP addresses used by Cloudflare in JD Cloud data centers.

Frequently Asked Questions

Why do I need Cloudflare's IP ranges?

Knowing Cloudflare's IP ranges is crucial for properly configuring your web server, firewall, or other network devices to work with Cloudflare's services. It helps in identifying legitimate traffic coming through Cloudflare and implementing security measures.

How often are these IP ranges updated?

Cloudflare may update their IP ranges periodically. It's recommended to check for updates regularly or implement an automated system to fetch the latest IP ranges from Cloudflare's API.

Can I whitelist these IP ranges?

Yes, you can whitelist these IP ranges to ensure that traffic from Cloudflare is always allowed through your firewall or security systems. However, be cautious and ensure your security measures are comprehensive.

Are these all the IP addresses Cloudflare uses?

This list includes the primary IP ranges used by Cloudflare for their edge network. However, Cloudflare may use additional IPs for specific services or in certain situations. Always refer to Cloudflare's official documentation for the most up-to-date information.

Where does this IP range data come from?

This IP range data is sourced directly from Cloudflare's official API. Specifically, it's retrieved from the Cloudflare IPs endpoint (https://api.cloudflare.com/client/v4/ips). This ensures that the information provided here is always up-to-date and accurate, straight from Cloudflare's own systems.

How can I programmatically access this data?

Cloudflare provides an API endpoint for developers to programmatically access their IP ranges. You can find more information and documentation about this endpoint at https://developers.cloudflare.com/api/operations/cloudflare-i-ps-cloudflare-ip-details. This allows you to integrate real-time IP range updates into your own applications or systems.