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github · codespaces

GitHub uses 191 prefixes for codespaces.

Last updated 5 Nov 2026 from GitHub’s own list

Short answer

codespaces lists the addresses used by GitHub Codespaces.

IPv4 prefixes191
IPv6 prefixes0
Regions in the first 100—
Fetched by peekip5 Nov 2026

Prefixes

PrefixRegion / locationService
104.215.250.48/28—codespaces
104.215.251.96/28—codespaces
104.215.252.144/28—codespaces
104.215.255.144/28—codespaces
104.215.255.224/28—codespaces
104.46.239.0/28—codespaces
13.71.3.96/28—codespaces
13.76.118.112/28—codespaces
13.76.118.128/28—codespaces
13.76.118.16/28—codespaces
13.76.118.176/28—codespaces
13.76.118.192/28—codespaces
13.76.118.208/28—codespaces
13.76.118.224/28—codespaces
13.76.118.32/28—codespaces
13.76.118.48/28—codespaces
13.76.118.64/28—codespaces
13.76.118.80/28—codespaces
13.76.217.32/28—codespaces
135.237.130.224/28—codespaces
138.91.25.112/28—codespaces
172.166.151.112/28—codespaces
172.166.156.160/28—codespaces
172.166.156.96/28—codespaces
172.182.192.176/28—codespaces
172.182.192.192/28—codespaces
172.182.200.128/28—codespaces
172.182.200.240/28—codespaces
172.182.201.112/28—codespaces
172.182.201.64/28—codespaces
172.182.201.80/28—codespaces
172.182.201.96/28—codespaces
172.182.208.144/28—codespaces
172.182.208.192/28—codespaces
172.182.208.208/28—codespaces
172.182.208.224/28—codespaces
172.182.208.240/28—codespaces
172.182.209.0/28—codespaces
172.182.209.16/28—codespaces
172.182.209.32/28—codespaces
172.191.151.48/28—codespaces
172.203.190.240/28—codespaces
172.203.190.64/28—codespaces
172.210.53.192/28—codespaces
172.210.53.208/28—codespaces
172.210.53.240/28—codespaces
172.210.54.0/28—codespaces
172.210.54.112/28—codespaces
172.210.54.128/28—codespaces
172.210.54.144/28—codespaces
Showing 50 of 191 prefixes All prefixes (CSV)

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 104.215.250.48/28;
allow 104.215.251.96/28;
allow 104.215.252.144/28;
allow 104.215.255.144/28;
allow 104.215.255.224/28;
deny all;
iptables (first 5 prefixes)
iptables -A INPUT -s 104.215.250.48/28 -j ACCEPT
iptables -A INPUT -s 104.215.251.96/28 -j ACCEPT
iptables -A INPUT -s 104.215.252.144/28 -j ACCEPT
iptables -A INPUT -s 104.215.255.144/28 -j ACCEPT
iptables -A INPUT -s 104.215.255.224/28 -j ACCEPT

Generate the full list from the CSV, and refresh it on a schedule: providers add and retire prefixes often.

Sources

  1. GitHub: published IP ranges · checked 5 Nov 2026
  2. GitHub documentation