Gosh, I have even gotten occasional calls from a major hotel chain where I once stayed like 10 years ago. Pathetic. I feel everyone's pain with these interrupting bothersome calls. Whatever happened to that government joke, "Do Not Call" list?
Recently, though, I get sometimes back-to-back calls (which I don't answer) with my name and number in the caller ID.
I don't know how they do that, but there's much I don't know about the current phone system, and much I don't like.
Block your own number? Only as a last resort.