Fixed IP addresses for channels

We are setting up miniforge of a server. Users need to be able to download packages from two places
a) conda package channel
b) Pip package channel
c) Map tiles used by contextily

Is it likely that any of the above have a fixed IP address (or small range or IP addresses) that wont change very often ?

We want to restrict what internet resources can be accessed from the server, and can only do this via IP Address range at the mo.

For PyPI, see