Which channel does beacon work in?

In my knowlege, BLE 4.0 advertising in channel 37,38,39 (2402MHz,2426MHz,2480MHz respectively)
My question is , which channel does estimote’s beacon work? or it will automatic change in three different channels ?

thank you all

The advertisements will hop between the three channels.

is there a way to find out which of the three advertising channels was used for transmitting after receiving a Broadcasted Message?

Not on iOS or Android, I’m afraid. BTW, what would you use that info for?