You seem to not realize that AT&T and Verizon are about the same size, and each one has far less than 50% of the market. Cable companies like Comcast, Time Warner, and Grande Communications have part of the market. Microsoft has Skype and Google Voice is pushing into the market. All of these companies have the same limitations. Scammers exploit those limitations.
Paid polling service asking me to answer a 3 minute survey. Identified themselves as the Blue Grass Poll. We have a gubernatorial primary coming up so I suspect lots and lots of Kentuckians are getting these calls.