Called, unknown number

Spam from SSI- leaves hangup messages.

My spouse answered, said hello several times - nothing @ other end so he hung up.

Spam.  Shows SSI on caller ID.

Survey Sampling International:
SSI is Survey Sampling International, a survey company and had nothing to do with the SSI program by the Social Security Administration, not 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.