Who called from 9188772229

Why am I getting calls from this number and when I answer nobody talks? When I call the number back, I get a recording "office hours 7:00-4:00 pacific time.

This number has been calling me twice a day for almost 2 weeks now. How do I make it stop?

Getting sick of this number calling me.

This call area code (918) is the same as mine but shows out of area.
Couldn't understand a word he said. Speaking from India.
Obviously a scam call.