Yes, DIG is still the airport code. There are scheduled passenger flights between DIG and CAN, SHA, CTU, LXA & KMG. For instance, DIG-KMG flight schedule is available at http://www.feeyo.com/flight_en_resul...rg=dig&dst=kmg (Just change the relevant IATA airport code after "org=" and "dst=" to see other cities). Hopefully this may help.