Wow. I got a bunch of spoofed calls some from the same numbers you list in your email. They included: 312-809-5189, 410-629-3177, 702-834-9676, 301-242-9336, 646-712-8396
This number started calling 03/05/2015. As of 03/16/2015 we have received 10 calls. Very foreign voice and can'd understand his name. Also an 800 number associated with this 312 area code. It is: 800-267-5356.