gcp · us-west4

Google Cloud uses 15 prefixes for us-west4.

Name: Google Cloud us-west4 IP ranges
Creator: Google Cloud

Last updated 5 Nov 2026 from Google Cloud’s own list (file dated 2026-11-04T18:04:11.909689)

Short answer

Google Cloud lists these prefixes under “us-west4”. Google Cloud publishes cloud.json: the external address ranges available to Google Cloud customers, with the region (scope) each one is used in.

IPv4 prefixes	13
IPv6 prefixes	2
Regions in the first 100	us-west4
Fetched by peekip	5 Nov 2026

Prefixes

Prefix	Region / location	Service
136.85.128.0/17	us-west4	us-west4
34.104.72.0/22	us-west4	us-west4
34.118.240.0/22	us-west4	us-west4
34.124.8.0/22	us-west4	us-west4
34.125.0.0/16	us-west4	us-west4
34.16.128.0/17	us-west4	us-west4
34.183.128.0/24	us-west4	us-west4
34.184.127.0/24	us-west4	us-west4
34.186.0.0/19	us-west4	us-west4
34.50.160.0/19	us-west4	us-west4
35.219.128.0/18	us-west4	us-west4
8.228.0.0/19	us-west4	us-west4
8.234.17.0/24	us-west4	us-west4
2600:1900:4180::/44	us-west4	us-west4
2600:1902:2c0::/44	us-west4	us-west4

What changed

No prefixes added or removed since we started tracking this list. Changes appear here the day after the provider publishes them.

Allowlist formats

nginx (first 5 prefixes)

allow 136.85.128.0/17;
allow 34.104.72.0/22;
allow 34.118.240.0/22;
allow 34.124.8.0/22;
allow 34.125.0.0/16;
deny all;

iptables (first 5 prefixes)

iptables -A INPUT -s 136.85.128.0/17 -j ACCEPT
iptables -A INPUT -s 34.104.72.0/22 -j ACCEPT
iptables -A INPUT -s 34.118.240.0/22 -j ACCEPT
iptables -A INPUT -s 34.124.8.0/22 -j ACCEPT
iptables -A INPUT -s 34.125.0.0/16 -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