Matches in DBpedia 2014 for { ?s <http://dbpedia.org/property/r2Number> ?o. }
- Columbia_Regional_Airport r2Number "13".
- Columbus_Air_Force_Base r2Number "13".
- Columbus_Metropolitan_Airport_(Georgia) r2Number "13".
- Columbus_Municipal_Airport_(Indiana) r2Number "14".
- Columbus_Municipal_Airport_(Nebraska) r2Number "2".
- Comandante_Espora_Airport r2Number "16".
- Comandante_Gustavo_Kraemer_Airport r2Number "14".
- Combarbalá_Airport r2Number "5".
- Comodoro_Arturo_Merino_Benítez_International_Airport r2Number "17".
- Comodoro_D._Ricardo_Salomón_Airport r2Number "14".
- Woodley_Airport r2Number "7".
- Concord_Municipal_Airport r2Number "17".
- Condobolin_Airport r2Number "10".
- Congonhas-São_Paulo_Airport r2Number "17".
- Conn_Aerodrome r2Number "9".
- Converse_County_Airport r2Number "5".
- Coober_Pedy_Airport r2Number "14".
- Cook_County_Airport r2Number "15".
- Coolidge_Municipal_Airport r2Number "17".
- Cooma–Polo_Flat_Airport r2Number "18".
- Cooma–Snowy_Mountains_Airport r2Number "14".
- Coonabarabran_Airport r2Number "1".
- Coonamble_Airport r2Number "12".
- Cootamundra_Airport r2Number "10".
- Copenhagen_Airport r2Number "4".
- Coposa_Airport r2Number "10".
- Cordova_Municipal_Airport r2Number "9".
- Cork_Airport r2Number "7".
- Corowa_Airport r2Number "5".
- Corpus_Christi_International_Airport r2Number "17".
- Corvallis_Municipal_Airport r2Number "9".
- Cotswold_Airport r2Number "(Unlicensed)".
- Cotswold_Airport r2Number "8".
- Cottbus-Drewitz_Airport r2Number "7".
- Coulommiers_–_Voisins_Aerodrome r2Number "9".
- Coulter_Field r2Number "17".
- Council_Bluffs_Municipal_Airport r2Number "14".
- Courtland_Airport r2Number "17".
- Cowell_Airport r2Number "12".
- Cowley_Airport r2Number "11".
- Cowra_Airport r2Number "3".
- Cox_Field r2Number "14".
- Cozumel_International_Airport r2Number "5".
- Cozumel_International_Airport r2Number "Military Use Only".
- Craik_Airport r2Number "17".
- Crawford_County_Airport r2Number "17".
- Creech_Air_Force_Base r2Number "13".
- Creston_Municipal_Airport r2Number "4".
- Creve_Coeur_Airport r2Number "7".
- Crisfield_Municipal_Airport r2Number "14".
- Crisp_County-Cordele_Airport r2Number "5".
- Cromwell_Racecourse_Aerodrome r2Number "18".
- Crookston_Municipal_Airport r2Number "17".
- Crosby_Municipal_Airport_(North_Dakota) r2Number "3".
- Cross_City_Airport r2Number "13".
- Crows_Landing_Naval_Auxiliary_Air_Station r2Number "17".
- Croydon_Airport r2Number "E/W".
- Crystal_Airport_(Minnesota) r2Number "14".
- Crystal_River_Airport r2Number "18".
- Cuatro_Vientos_Airport r2Number "10".
- Cue_Airport r2Number "11".
- Culberson_County_Airport r2Number "7".
- Cumberland_Municipal_Airport_(Wisconsin) r2Number "18".
- Cunderdin_Airport r2Number "14".
- Cunnamulla_Airport r2Number "6".
- Curries_(Rand_Private_Airfield)_Aerodrome r2Number "17".
- Curtis_Field r2Number "8".
- Cushing_Municipal_Airport r2Number "2".
- Cut_Bank_Municipal_Airport r2Number "13".
- Cutral_Có_Airport r2Number "8".
- Da_Nang_Air_Base r2Number "17".
- Da_Nang_International_Airport r2Number "17".
- Daegu_International_Airport r2Number "13".
- Dalhart_Army_Air_Base r2Number "6".
- Dalhart_Municipal_Airport r2Number "17".
- Fort_Worth_International_Airport r2Number "13".
- Dallas_Executive_Airport r2Number "17".
- Dallas_Love_Field r2Number "13".
- Dalton_Airport_(Michigan) r2Number "9".
- Daman_Airport r2Number "9".
- Damascus_International_Airport r2Number "5".
- Damyns_Hall_Aerodrome r2Number "14".
- Danbury_Municipal_Airport r2Number "17".
- Dane_County_Regional_Airport r2Number "3".
- Daniel_Field r2Number "11".
- Dannevirke_Aerodrome r2Number "8".
- Dansville_Municipal_Airport r2Number "18".
- Danville_Regional_Airport r2Number "13".
- Dare_County_Regional_Airport r2Number "17".
- Dargaville_Aerodrome r2Number "4".
- Darlington_County_Jetport r2Number "10".
- Darwin_International_Airport r2Number "18".
- Davenport_Municipal_Airport_(Iowa) r2Number "3".
- Davenport_Municipal_Airport_(Washington) r2Number "3".
- David_Jay_Perry_Airport r2Number "17".
- David_Wayne_Hooks_Memorial_Airport r2Number "17".
- Davis_Airport_(Michigan) r2Number "16".
- Davis_Field_(Oklahoma) r2Number "4".
- Dawson_Community_Airport r2Number "2".
- Dayton_International_Airport r2Number "6".