Who called from 6036643776

Have received three calls from SSI between 5/14-5/16.  Every call had a different number.  No area code listed, however, calls originated in Manchester, NH.  No msgs were left, however, checked the other numbers and others have reported the same results for SSI.  No msg left when call is not answered.

answered the phone from SSI and no one answered it was a quick beep then a few seconds and then dial tone.

Picked up phone, no response, just silence.

Suspicious call. Did not answer, they left no message

Called my house. Got my answering machine but asked for me by name (first and last). Then hung up when she realized that she got a machine.