How to get text field history in selenium?

Is it possible to get a field's history (if it exists) for a field in an array or something of that sort in selenium? For example, user id field, I can see all IDs that have been used so far.

The purpose I'd like to use this is quickly create new IDs that haven't been used before. For example testID45 is already taken, so I'll use testID46 to create a new one. It's a lazy without keeping track of the IDs.