No, but SSI is also the acronym for Supplemental Security Income, a branch of the Social Security Administration, so their choice of ID could be intentionally misleading.
Received a call from this number at about 7:52 pm on 2/14/14...Caller ID said SSI...really?
I have an unlisted phone number & SSI certainly does not have it
Have been getting calls all week from this number. It shows it is from SSI. I have my number on the no call list and they are still calling. Really. I never pick up. They never leave a message.