Google Cloud uses 19 prefixes for europe-west8.
Short answer
Google Cloud lists these prefixes under “europe-west8”. 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
+ 34.183.132.0/24 + 34.184.132.0/24
- 9 Oct 2026
− 34.183.132.0/24 − 34.184.132.0/24
Allowlist formats
nginx (first 5 prefixes)
allow 34.0.160.0/19; allow 34.153.230.0/24; allow 34.153.38.0/24; allow 34.154.0.0/16; allow 34.157.121.0/24; deny all;
iptables (first 5 prefixes)
iptables -A INPUT -s 34.0.160.0/19 -j ACCEPT iptables -A INPUT -s 34.153.230.0/24 -j ACCEPT iptables -A INPUT -s 34.153.38.0/24 -j ACCEPT iptables -A INPUT -s 34.154.0.0/16 -j ACCEPT iptables -A INPUT -s 34.157.121.0/24 -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 2 Nov 2026
- Google Cloud documentation