Mac Address for Hub

I’ve had to deal with some hacking on my wireless router and have reconfigured it to only allow connections from known MAC addresses. The problem I’m having right now is that I can’t seem to find the MAC address for my Hub. I’ve gone over the outside of the device with a magnifying glass and don’t see anything. Similarly I’ve been combing through the Android app and don’t see the data anywhere in there either.

Help!

Chris