Amazon Web Services uses 116 prefixes for WORKSPACES_GATEWAYS.
Short answer
WORKSPACES_GATEWAYS lists the gateways Amazon WorkSpaces clients connect through.
Prefixes
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 13.124.247.0/24; allow 13.126.243.0/24; allow 13.212.132.0/22; allow 13.246.108.0/22; allow 13.246.120.0/22; deny all;
iptables (first 5 prefixes)
iptables -A INPUT -s 13.124.247.0/24 -j ACCEPT iptables -A INPUT -s 13.126.243.0/24 -j ACCEPT iptables -A INPUT -s 13.212.132.0/22 -j ACCEPT iptables -A INPUT -s 13.246.108.0/22 -j ACCEPT iptables -A INPUT -s 13.246.120.0/22 -j ACCEPT
Generate the full list from the CSV, and refresh it on a schedule: providers add and retire prefixes often.
Sources
- Amazon Web Services: published IP ranges · checked 5 Nov 2026
- Amazon Web Services documentation