This is exactly what just happened to me. Thought I'd google the number and sure enough it's some Indian scammer
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Recent comments:
1
Mar 29, 2016
I don't know who this is????
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2
Mar 29, 2016
Same here nothing but air kind of creepy.
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3
Mar 30, 2016
Said message about my computer. When stated, "No, I do not have a computer", they hung up on me. Scam
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4
Dec 15, 2016
Yes, just creepy air – – no message. BLOCKED!
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5
Mar 20, 2017
I think this is related to companies scraping up info on domain records. I just registered two domain with godaddy and started getting texts, spam phone calls, and emails within 48 hours. I confirmed it with godaddy that they do not sell this info but it's publicly available whois.sc