About GitHub's IP addresses
GitHub serves applications from multiple IP address ranges, which are available using the API.
We make changes to our IP addresses from time to time, and will keep this API up to date. We do not recommend whitelisting by IP address, however if you use these IP ranges we strongly encourage regular monitoring of our API.
For applications to function, you must allow TCP ports 22, 80, 443, and 9418 via our IP ranges for