Grand Hotel Capodimonte
Amadeus (1A) = YX RROGRC
Sabre (AA) = YX 49144
Galileo/Apollo (UA) = YX 32201
Worldspan (TW) = YX RROGC
DHISCO (WB) = YX 40927
Grand Hotel Ambasciatori
Amadeus (1A) = YX RROAMB
Sabre (AA) = YX 58888
Galileo/Apollo (UA) = YX 31342
Worldspan (TW) = YX RROAM
DHISCO (WB) = YX 40926
Grand Hotel Royal
Amadeus (1A) = YX RROROY
Sabre (AA) = YX 48526
Galileo/Apollo (UA) = YX 30654
Worldspan (TW) = YX RRORO
DHISCO (WB) = YX 40925
Grand Hotel De La Ville
Amadeus (1A) = YX RRODEL
Sabre (AA) = YX 49254
Galileo/Apollo (UA) = YX 33278
Worldspan (TW) = YX RRODE
DHISCO (WB) = YX 40920