Identifying beacons by MAC or ID

In this old question something similar was asked:

Pair Eddystone-TLM with Eddystone-UID iOS.

“In Estimote Beacons, the Eddystone-UID, URL, and TLM packets are all broadcast with the same physical/MAC address, so you should be able to “group” them by that.”

What I’m asking is if I have a way to know the mac address for each beacon beforehand.