GitHub uses 8 prefixes for github_enterprise_importer.
Short answer
GitHub lists these prefixes under “github_enterprise_importer”. GitHub’s meta API lists the addresses for each GitHub service: webhooks (hooks), the website (web), the API, Git, Actions runners, Pages, packages, Copilot and others.
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 135.234.59.224/28; allow 140.82.112.0/20; allow 143.55.64.0/20; allow 185.199.108.0/22; allow 192.30.252.0/22; deny all;
iptables (first 5 prefixes)
iptables -A INPUT -s 135.234.59.224/28 -j ACCEPT iptables -A INPUT -s 140.82.112.0/20 -j ACCEPT iptables -A INPUT -s 143.55.64.0/20 -j ACCEPT iptables -A INPUT -s 185.199.108.0/22 -j ACCEPT iptables -A INPUT -s 192.30.252.0/22 -j ACCEPT
Generate the full list from the CSV, and refresh it on a schedule: providers add and retire prefixes often.
Sources
- GitHub: published IP ranges · checked 5 Nov 2026
- GitHub documentation