I just looked phone number up & it's a personal residence, so this really raises a red flag

Call is from SSI(not to be confused with SSI benefits)
Http://surveysampling com
4. Who is Survey Sampling (SSI)?
Survey Sampling International (SSI) is a company which helps researchers listen to and access people's opinions. SSI is a member of the Council of American Survey Research Organizations (www.casro.org) and complies with research industry standards, best practices and relevant laws. SSI believes that legitimate research is a vital part of society because when people give their opinions, they can help shape, improve, and create products, services, programs, and policies that impact people, society and the world we live in.
Their main number with opt-out is
(203) 567-7200

Have received numerous calls from this number but no one responds when I answer.

This is INDEED a scam. Call coming from Aberdeen, OH according to 900 notes dot com.

DO NOT ANSWER

google scammers are now using the number