I do recognise that a lot of it is probably just playing up for the joke, but I assume it has to come from somewhere. I regularly see posts where basically Person A sends an odd image/message, then follows up with “wrong number, sorry” and Person B responds with “wait stay”.
Do Americans, as a rule, not save phone numbers? Or is it purely a bit that has become a trope?
My old land line was almost the same number as an entertainment venue whose number spelled TICKETS. People would sometimes dial 1 instead of 4 (corresponding to the letter I), and get me. Usually on weekend mornings, grr, but fortunately it didn’t happen too often.