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Google App Engine IP ranges
Google App Engine: 27 datacenter IP ranges, 2,563,072 IPv4 addresses (1.16% of listed datacenter space). Largest blocks, ASNs, countries and what Google App Engine traffic means.
At a glance
- Name
- Google App Engine
- Type
- Datacenter / hosting
- Share of datacenter space
- 1.16%
- Website
- cloud.google.com
- Country
- United States, Japan, Canada, Switzerland, Belgium
- Largest range
- 35.203.240.0/20
Networks announcing these ranges
Where the ranges are located
Sample cities: Mountain View, Council Bluffs, North Charleston, Shibuya City, Kansas City, Montreal, Zurich, Osaka
Largest IP ranges
What traffic from Google App Engine means for a website
Every address in these 27 ranges belongs to Google App Engine infrastructure — virtual machines, containers, load balancers or edge nodes — rather than to an end-user's broadband or mobile line. A request from one of them is therefore a server talking to your server: a crawler, a monitoring probe, an API client, a scraper or a VPN/proxy exit hosted on Google App Engine.
That is why fraud and abuse systems treat datacenter origins differently from residential ones: a sign-up, a vote or an ad click from a Google App Engine address is unlikely to be an ordinary person at home. The sensible response is not a blanket block (legitimate bots and corporate VPNs live here too) but a lower trust score, stricter rate limits or a challenge.
To test a single address, run it through the proxy checker: it reports the datacenter match, the announcing network and whether the address also appears on Tor or blocklists. Proxy & VPN detector →
How this page is built
Ranges come from the open datacenter list (client9/ipcat) refreshed by our cron jobs; the announcing networks are looked up in iptoasn routing data and locations in DB-IP Lite (CC BY 4.0) using one address per sampled range. Counts are recomputed daily.