Check which cloud, CDN, SaaS or verified crawler owns an IP address: AWS, Azure service tags, Google Cloud, Microsoft 365, Oracle, DigitalOcean, Cloudflare, Fastly, GitHub, Atlassian, Googlebot, Bingbot and GPTBot. Free, runs in your browser.
How to use it
Paste IPv4 or IPv6 addresses, or whole firewall, web server or sign-in log lines. Every IP found in a line is checked.
Each result shows the provider, the service (for example EC2, AzureStorage, Exchange Online, GitHub actions), the region and the matching prefix. The most specific match is listed first.
A hit on a Googlebot, Bingbot or OpenAI crawler list means the IP really belongs to that crawler, which is how you tell genuine bots from fake user agents.
Some lists overlap on purpose: GitHub publishes the Azure ranges its Actions runners use, and Microsoft 365 ranges sit inside Azure.
The range data is a snapshot of each provider's official published list (date shown after the first lookup). Private, CGNAT and loopback addresses are flagged too.
Checking thousands of IPs, or need live allowlists?
The Cloud IP Range Lookup actor on Apify downloads every provider list fresh on each run, checks up to 50,000 IPs (paste raw log lines) and exports filtered CIDR allowlists, for example Azure Storage in one region or GitHub webhook IPs ($2 per 1,000 IPs).