Blocking them will make little difference.  I'm getting at least one call from therm everyday...and it's always with a different city and number.  If you check the address mentioned earlier...it's a residence.  BTW...There is no such LLC in Iowa.  The only one that is even close that is in the town mentioned is SYMMETRY MORTGAGE CORP.  - President:  GREGORY O. FRANICH     5382 CLEMONS RD.         BETTENDORF     IA     52722     Treasurer -  ERIN E. FRANICH     5382 CLEMONS RD.         BETTENDORF     IA     52722     However...I find it likely that they are not even the ones responsible and that the entire info given from the phone number is bogus. I have no idea.  But it is extremely annoying.