Ports used by Erlang OTP

[Jacek Furmankiewicz]

Is there some documentation as to which ports are used internally by Erlang
OTP?

I need to document it for our operations team before they move the app into
production. Our data centers are very hardened and all ports are closed by
defaults.
Only those specifically requested are opened.

I guess I would need to know the ports used by EPMD and OTP for all the
rpc:_ calls...or any other ports that are required for an OTP app to
function.

Thanks,
Jacek