Hosting Provider

cloudflare.com

HostingRank #602 of 2,000

cloudflare.com is the 602nd largest of 2,000 hosting providers by IPv4 space, with 37,586 IPv4 networks (65,745 addresses) and 50,491 IPv6 networks. The ipapi.is API marks every address in these ranges as a datacenter address.

IPv4 addresses65,745in 37,586 networks
IPv6 networks50,491≈ 1.3 × 10²⁹ addresses
Provider rank#602of 2,000 by IPv4 space
Largest network8.25.98.0/24256 addresses

Details

Hosting providercloudflare.com
Website—
Rank#602 of 2,000
Classified byipapi.is hosting detection

IPv4 networks

37,586 networks · 65,745 addresses
NetworkAddressesFirst – last address
8.25.98.0/242568.25.98.0 – 8.25.98.255
104.29.0.0/24256104.29.0.0 – 104.29.0.255
104.29.1.0/24256104.29.1.0 – 104.29.1.255
104.29.2.0/24256104.29.2.0 – 104.29.2.255
104.29.3.0/24256104.29.3.0 – 104.29.3.255
104.29.4.0/24256104.29.4.0 – 104.29.4.255
104.29.5.0/24256104.29.5.0 – 104.29.5.255
104.29.6.0/24256104.29.6.0 – 104.29.6.255
104.29.7.0/24256104.29.7.0 – 104.29.7.255
104.29.8.0/24256104.29.8.0 – 104.29.8.255
104.29.9.0/24256104.29.9.0 – 104.29.9.255
104.29.11.0/24256104.29.11.0 – 104.29.11.255
104.29.12.0/24256104.29.12.0 – 104.29.12.255
104.29.13.0/24256104.29.13.0 – 104.29.13.255
104.29.14.0/24256104.29.14.0 – 104.29.14.255
104.29.15.0/24256104.29.15.0 – 104.29.15.255
104.29.16.0/24256104.29.16.0 – 104.29.16.255
104.29.17.0/24256104.29.17.0 – 104.29.17.255
104.29.18.0/24256104.29.18.0 – 104.29.18.255
104.29.19.0/24256104.29.19.0 – 104.29.19.255
104.29.21.0/24256104.29.21.0 – 104.29.21.255
104.29.22.0/24256104.29.22.0 – 104.29.22.255
104.29.23.0/24256104.29.23.0 – 104.29.23.255
104.29.24.0/24256104.29.24.0 – 104.29.24.255
104.29.25.0/24256104.29.25.0 – 104.29.25.255
The 25 largest of 37,586. The API and the database have all of them.

IPv6 networks

50,491 networks
  • 2a09:bac5::/45
  • 2a09:bac5:8::/45
  • 2a09:bac5:10::/45
  • 2a09:bac5:18::/45
  • 2a09:bac5:20::/45
  • 2a09:bac5:28::/45
  • 2a09:bac5:30::/45
  • 2a09:bac5:38::/45
  • 2a09:bac5:40::/45
  • 2a09:bac5:48::/45
  • 2a09:bac5:50::/45
  • 2a09:bac5:58::/45
  • 2a09:bac5:60::/45
  • 2a09:bac5:68::/45
  • 2a09:bac5:70::/45
  • 2a09:bac5:78::/45
  • 2a09:bac5:80::/45
  • 2a09:bac5:88::/45
  • 2a09:bac5:90::/45
  • 2a09:bac5:98::/45
  • 2a09:bac5:a0::/45
  • 2a09:bac5:a8::/45
  • 2a09:bac5:b0::/45
  • 2a09:bac5:b8::/45
  • 2a09:bac5:c0::/45
The 25 largest of 50,491. The API and the database have all of them.

Detect cloudflare.com with the API

Every address in these networks comes back with is_datacenter: true and a datacenter object naming the provider. The detection flags need an API key: a free account comes with 1,000 requests a day. 

curl "https://api.ipapi.is/?q=8.25.98.1&key=YOUR_API_KEY"
"is_datacenter": true,
"datacenter": {
  "datacenter": "cloudflare.com",
  "network": "8.25.98.0 - 8.25.98.255"
}

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