This number called me, an automated message played, claimed my amazon prime subscription had required renewal and to press 1 to speak to an operator.

I don't have Amazon prime, so I entertained the idea and pressed 1. I got redirect to a Tamil tech support center and then got hung up on after the man on the other side not understanding the situation.

I tried to call this number directly, and got a messaged return 'this caller is not currently accepting incoming phone calls'

Probably some stupid kids pranking but could be malicious.