Don't you know? ... "Political Surveys" are exempt from the DNC list!
ANYONE can call your number by just saying they want you to answer a few of their survey questions first. THEN they ask for your credit card numbers and any other information they can con you into giving them.
Am in Toronto, yup Canada! Travel scam claims to be a political survey. Every call I get from the 206 Seattle area code is some type of con - usually about credit cards. Apparently they have both a new number and a new scheme.