Who called from 5619899809

Called asking for my husband. The person calling did not identify themself by name. When they learned my husband was not available they hung up.

A man called asking for "Charlie" ( the CEO goes by Charles) I said he was not in and asked if I could take a message,he then hung up.

A man said "Is Bill in?" sounded like he's a personal friend of "Bill".  I said "Bill who?" because we have two Bill's.  He gave me the former CEO's last name, who left the company two years ago.  Ding Dong! "I" hung up.

Our company has received in-numerable calls for the CEO of the company and when asked for a message, the caller just hangs up.

Just had a "JEFF" call me asking for the "Frank" who hasn't worked here in over a year. I asked "Jeff" to put me on the Do not call list at which time said it was going to cost me and how much would I pay him to put my company on the do not call list!
Don't know what kind of a business you run but you need to be reported!!