To see where the given pcc is consolidated with in itself or not use the below sabre command
T*PCC/Q  
take look at  the below example the PCC CNX consolidated with BKK 
which means that any PNR created on CNX found on BKK.
T*CNX/Q«                                                                               
CITY  CONS    QMR    CI                                                                
ARPT  CITY    ORD   ORD                                                                
CNX   BKK      43  1714