I lived in my apartment number 11. After installing the homephone, all the garbage homephone traffic went through me - because it is so convenient to press two units! Postcards five times a day, couriers and collectors to neighbors, various sectarians - all dreamed that it was I who opened the door to them. Once even a local requested. At the end of the day, I was so upset that I started to shut off the homephone.

As it is fashionable to say, I will open up the universe to you.
You had to call the company that served the home phone and ask to reset your number to any other non-existent in the entrance. Friends, relatives, pizza suppliers and others can tell this, and whoever does not need to know, will not know.