how do i find a listing of all the hide my emails that i have used in the past

I use hide my email on my iPhone in case I’m not sure I want to be involved with certain things but now I’m being asked if a certain email belongs to me or is associated with my iPhone, so I would like to know if there is a place where this info is stored to check if this particular email belongs to my iPhone and would like to know if there is one that exists?@