This is Amazon's own delivery service. Two days in a row I received a call from this number, then Shortly after an Amazon delivery man showed up at my door with a package.
I didnt pick up or call the number back but the ship delivery time of my packages i was expecting today, corresponds with the time i missed the call. So yeah, id say its Amazon. This is new....
This is AMAZON PRIME calling to deliver a package. Answer your phone for this number! I answered and they had a package for me and were standing outside.