Cloudflare

What it is

The IPv4 and IPv6 ranges Cloudflare's edge answers from, the ones a site behind Cloudflare allow-lists. They are anycast: one address is announced from every datacenter at once, so its geolocation is the nearest instance, not a place. Cloudflare's consumer VPN, WARP, is a separate source below.

What it answers

In the IP response this source feeds is_datacenter, hosting_provider, is_anycast. Every answer names the datasets it read in its sources block with the date each was synced, so the figure on this page and the one in an answer are the same figure.

curl https://spaw.co/api/v1/ip \
  -H "Authorization: Bearer $SPAW_KEY" \
  -H "Content-Type: application/json" \
  -d '{"ip": "203.0.113.9"}'

How to read this page

A source names a network or an operator, never a person. An address inside one of these ranges tells you what the connection is — a cloud instance, a VPN exit, a gateway, a listed host — and nothing about who is behind it.

This page is a reference about detection, not a mirror of the operator's list: it prints counts and dates, not addresses. The operator publishes the list itself, at the address above, and is the place to read it.

More sources in clouds and hosting

• Amazon Web Services
• Google Cloud
• Microsoft Azure
• Oracle Cloud
• DigitalOcean
• Linode
• Vultr
• Fastly
• GitHub Actions
• Every source
• Every field, documented
• Look up an address

counts and dates read from the installed feed · checked 2026-09-13