Call then hang up. It says "out of area"

get phone call four or five times a day,they never leave a message

Keeps calling the house,  just ignored it

Received call from this number, male voice asked how I was and then stated a company name, which I could not understand because of the accent. I said I was fine but did not want to talk to him and just hung up

This caller never answers when I lift up the receiver.
Haven't a clue who they are except to say they are a nuisance.