>Our of curiosity, how many others out there are getting a call from this number on cell phones? Last couple days it has been hitting verizon customers in our area.

You should probably report it to Paetec Communications. Reverse lookup gives this:

(305) 503-3285 is a land line based in Miami, FL
The registered service provider is Paetec Communications**.
Detailed listing information is not available.

** due to line portablility, the number may have been reassigned.