Who called from 3604707194

Caller ID: SSI; no message=scammer;  called same day from another number

Keep recieving phone calls from "SSI" with a 360 area code, and different number each time.  The most recent was 360-470-7194

Just got a call from this number, said 'Elma, WA'.    I answered the phone, said hello.   No answer, no noise, dead air.

Got a call on September 20th.  I didn't answer and they left no message.  Caller ID says "SSI."

So far, since September 17th, I have gotten calls from this "company" 10 times and using eight different numbers, all with no area code shown.   My area code is 360.
498-7021      9/17/15  &  10/7/15
589-5814      9/18/15  &  10/5/15
470-7194      9/20/15
443-7399      10/3/15
569-4401      10/12/15
268-8116      10/15/15
268-8118      10/17/15
409-7805      10/19/15

SSI 360 470-7194 appeared on caller ID,  I did not answer, no message was left.