When calls are answered caller hangs up phone. Calls some days as many as three times in 8 hours. We do not know this number or who the caller is.

I got two calls from this number, each saying there was a package I had ordered waiting for me at some federal building.  The second was from Patricia Belcher.   I got my phone number five years ago when I moved here, and it had previously been held by some Madison Services.  I still get some of their calls, and assumed this was another call for them.  I called back several times and the third time a guy answered saying  "Bueno"  Spanish I think.   When I tried to explain this wasn't  my package he told me twice he would kill me if I didn't give him my social security number.  I called the police but they said there wasn't much they could do and that the FBI didn't have the resources to follow up on the threat.  Other people convinced me otherwise so I did call them.   The FBI took doen the information and told me to call the FTC  who siad the will follow up.