Who called from 2535812021

you did not!  [***]  that is my phone number [***].

What made you look up your own phone number?

With caller-id spoofing apparently so common these days, maybe this number was spoofed to show up on caller id?  And then perhaps the person who got the call called the number back and that's what alerted the one who really owns that number?  Pure speculation on my part though.