Google Cloud uses 11 prefixes for europe-central2.
Short answer
Google Cloud lists these prefixes under “europe-central2”. Google Cloud publishes cloud.json: the external address ranges available to Google Cloud customers, with the region (scope) each one is used in.
Prefixes
What changed
- 11 Oct 2026
+ 179.69.192.0/19 - 9 Oct 2026
− 179.69.192.0/19
Allowlist formats
nginx (first 5 prefixes)
allow 179.69.192.0/19; allow 34.0.240.0/20; allow 34.104.116.0/22; allow 34.116.128.0/17; allow 34.118.0.0/17; deny all;
iptables (first 5 prefixes)
iptables -A INPUT -s 179.69.192.0/19 -j ACCEPT iptables -A INPUT -s 34.0.240.0/20 -j ACCEPT iptables -A INPUT -s 34.104.116.0/22 -j ACCEPT iptables -A INPUT -s 34.116.128.0/17 -j ACCEPT iptables -A INPUT -s 34.118.0.0/17 -j ACCEPT
Generate the full list from the CSV, and refresh it on a schedule: providers add and retire prefixes often.
Sources
- Google Cloud: published IP ranges · checked 5 Nov 2026
- Google Cloud documentation