I'm reminded of an old Wired article about Steve Wozniak 'collecting' phone numbers. Pan Am (by mistake) and 888-8888. It's pretty far into the article, but the outcome was pretty funny: the number was unusable because...

https://www.wired.com/1998/09/woz/

[spoiler alert: toddlers picked up the phone and randomly pressed buttons, often enough hitting the 8 key repeatedly. He got too many calls to be able to use the number.]