how to find out older battletag

[mostafaaph]

is there anyway to know someone's older battletags if you know the current battletag

 

[Vlad]

Banned - Dispute: https://www.epicnpc.com/threads/2882647

I have a vague memory of my old battletag still being displayed for some time when viewing statistics on OverBuff I think it was many years ago. Might be your only option from my understanding to try any third-party services you might've potentially used. Otherwise like you were told in your other thread, that's information Blizzard would only know.