I've never had difficulty finding a number with personally mnemonic substrings. Example: my latest number has (of course) the state area code, then three numbe

I've never had difficulty finding a number with personally mnemonic substrings. Example: my latest number has (of course) the state area code, then three numbers which are the same as my area code growing up, followed by the two-digit year I got the number, leaving me two digits of pure entropy to memorize. Do I have any other numbers memorized? Lol, I do not. It would be a good idea to memorize one number I could call from jail (things happen), but those have to be land lines, and I don't think I know anyone with one of those anymore.