Is the TDA number the account number I use to deposit A4V bills as credit and my SOS number as the routing number? DWQA Questions › Category: Discharge of Debt › Is the TDA number the account number I use to deposit A4V bills as credit and my SOS number as the routing number? 0 Vote Up Vote Down Cries4Freedom asked 10 years ago Please login or Register to submit your answer Email Address Password Remember Me