Probably not social security.
There is a large survey company called Survey Sampling International that have many numbers they call from to pester people for information.
https://en.wikipedia.org/wiki/Survey_Sampling_International
On their website, they have a webpage where you can give your phone number for them to put in their internal do-not-call list - but only because federal law requires them to have one. They try to make it sound like they are doing this out of the goodness of their nosy corporate hearts.
https://www.surveysampling.com/contact/opt-out-do-not-call/
They say :
Opt Out from Survey Phone Calls
We appreciate your participation in our research and we value your opinion. But if you do not wish to participate in future surveys, we understand and respect your decision. You may choose to opt-out through any of these means:
Email us at
[email protected] and include your phone number in the body of the email.
Call 1-866-360-9563 from within North America or 1-801-379-4094 outside North America to be placed on our no-contact list.