Survey Sampling International:
SSI is Survey Sampling International, a survey company and has nothing to do with the SSI program by the Social Security Administration, nor does it have anything to do with the Administration itself.. Opt out: https://www.surveysampling.com/contact/
I don’t personally know if the above link will actually take you off their list, but I have been told a couple of times that it does work.
ID said SSI, a purported survey company, except that they are REALLY trying to sell you stuff. They try to look like they are legit, but they spoof local numbers, which is illegal. Calls are actually from India or Pakistan. Don't bother trying to stop the calls. If you ask them to stop, they just call you more. They constantly change numbers, and every number they use is bogus. They try to look local so you'll answer the phone. DON'T. Get a Panasonic phone or other call blocker and add them to your blocked list. The FCC needs to levy another robocall fine.
703-775-2062 (showed as SSI on caller ID) called my cell phone on a Sunday afternoon. Started off saying his name was Brian and he wasn't trying to see me anything. Then asked for a most likey bogus name (somebody Smith) and I hung up.