Dear Babbs,
That is not how they got anyone's number sorry to say. Why would they need to buy a list? The DNC list has to be bought FYI.  The illegal callers only have to plumb in a set of numbers in dialers or computers.

Please don't spreads Urbane Myth's and Legends.  Knowledge is power..

http://www.tcpalaw.com/
http://www.kleinmoynihan.com/publication/new- ... ctober-16-2013/
http://www.consumer.ftc.gov/articles/0108-national-do-not-call-registry
By State DNC lists:
http://800notes.com/res/DoNotCall.aspx
https://www.donotcall.gov/
http://www.ftc.gov/opa/2008/04/dncfyi.shtm
http://business.ftc.gov/documents/bus27-complying-telemarketing-sales-rule
http://business.ftc.gov/documents/bus27-compl ... -rule#DNCrights