Just received a call from this number and let in ring-no message. I searched and found unknowntracer.com that states the 8589321 prefixes are based in India. I assume it was one of those "something wrong with your computer" scams.

This is an unethical telemarketing sham operation calling using hijacked numbers in the 858 area code. Would you ever hire a contractor or buy any other service pitched by this type of seedy outfit?