The guy ask if you still receive mail at some incorrect address and then ask for the last four of your social. When asked where he is calling from he asks one of the two questions again.
(202) 870-5891 | +1 2028705891 Phone Number Reports
+1 202-870-5891 Phone Call Reports
This was an illegal attempt to collect a debt was already ruled by City of Phoenix Office of Cable Services made by Cox Communications against me after I filed a formal complaint against Cox for dangerous defective cable equipment that came close to causing a fire in my apartment and that Cox Communications refused to replace.
says collections, possible scam