There seems to a rash of these every now and then, although I haven’t seen any in the past week or two. I am sure most forum members know not to use them, but this Fodors article about them and how the scammers operate is worth a read.
Botom line: when you call your airline for help with a booking, make sure you have the correct number. The scammers have a way of manipulating the Google search results to make the fake numbers look genuine.