D-ABKK delivered together with sistership D-ABKL in 1975 as tke last two B.727-200/Advanced to Condor. Other owners of D-ABKK thereafter: TC-AFD Nobel Air, TC-TCA TUR and finally ZS-NOU Safair (more of D-ABKK)
D-ABKK Terminal 4 in MAD handels almost all small Iberia aircrafts depending on destination. Also you can find there Air Berlin , Vueling, Finnair, Cityflyer, Meridiana, CSA. (more of D-ABKK)