CDN

Cloudflare IP ranges

Cloudflare's edge network proxies traffic for millions of websites. Servers behind Cloudflare usually only accept connections from these ranges.

The ranges Cloudflare's edge uses to connect to your origin. Two common uses: lock your origin firewall so it accepts HTTP only from these ranges, and list them as trusted proxies (nginx set_real_ip_from) so your logs and geolocation see the visitor's IP instead of Cloudflare's.

IPv4 prefixes: 15
IPv6 prefixes: 7
IPv4 addresses: 1,524,736
Updated: Oct 1, 2026

Is this IP Cloudflare?

Checks the address against the current list, in your browser.

Download the list

Generated from the current list.

Source: https://www.cloudflare.com/ips-v4 · https://www.cloudflare.com/ips-v6 · official documentation

All prefixes

The list as of Oct 1, 2026; the page loads the latest copy when it opens.

Prefix
103.21.244.0/22
103.22.200.0/22
103.31.4.0/22
104.16.0.0/13
104.24.0.0/14
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
2400:cb00::/32
2405:8100::/32
2405:b500::/32
2606:4700::/32
2803:f800::/32
2a06:98c0::/29
2c0f:f248::/32

Frequently asked questions

What are the IP ranges of Cloudflare?

Cloudflare publishes 15 IPv4 and 7 IPv6 prefixes (1,524,736 IPv4 addresses in total) in its official list at https://www.cloudflare.com/ips-v4. This page shows the list as of Oct 1, 2026 and loads the latest copy when it opens.

How often do the Cloudflare IP ranges change?

Providers add and remove ranges regularly, sometimes several times a week. Do not hard-code the list: load it from its source (or this page's JSON) on a schedule, for example daily.

How do I allow only Cloudflare in nginx?

Download the nginx format on this page and include it in a location block: one 'allow' line per prefix followed by 'deny all;'. Regenerate the file regularly, because the list changes.

IP geolocation API

Know who is behind any IP

Beyond published lists, the ipbase API tells you the owner, ASN and location of every IP address, and on the Medium plan and above its data-center and VPN status, so you can recognise cloud traffic and bots from any provider.

Read the documentation

1,000 free requests every month. No credit card required.

GET https://api.ipbase.com/v2/info?ip=1.1.1.1

{
  "data": {
    "ip": "1.1.1.1",
    "type": "v4",
    "connection": {
      "asn": 13335,
      "organization": "APNIC and Cloudflare DNS Resolver project",
      "isp": "Cloudflare, Inc",
      "range": "1.1.1.0/24"
    },
    "location": {
      "country": { "alpha2": "AU", "name": "Australia" },
      "zip": "4000"
    },
    "security": { "is_vpn": null, "is_tor": null, "threat_score": null }
  }
}