This seems to be a legit number at NC State University doing survey research. I called back. The person sounded like an angry old lady. I hung up on her.
FTC Data
At least 1 consumer from North Carolina reported phone number 919-515-4220 to the Federal Trade Commission. 0% of complaints reported the call or text message as a robocall or recorded message. The last complaint was on March 7, 2018.
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Help others by rating this number - was it spam, a business, or something else?
This is a legitimate call from NC State University doing a quick survey on a topic to help improve the lives of NC citizens.