Matches in DBpedia 2014 for { ?s <http://dbpedia.org/property/r4Number> ?o. }
- Mitchel_Air_Force_Base r4Number "18".
- Moorabbin_Airport r4Number "17".
- Moore_Army_Airfield r4Number "13".
- Narromine_Airport r4Number "4".
- Nashville_International_Airport r4Number "13".
- Naval_Air_Station_Cecil_Field r4Number "18".
- Naval_Air_Station_Corpus_Christi r4Number "13".
- Naval_Air_Station_Kingsville r4Number "17".
- Naval_Air_Station_Oceana r4Number "14".
- Naval_Outlying_Field_Santa_Rosa r4Number "18".
- Naval_Outlying_Field_Spencer r4Number "9".
- Nelson_Airport_(New_Zealand) r4Number "17".
- New_Chitose_Airport r4Number "18".
- Nizhny_Novgorod_International_Airport r4Number "18".
- North_Perry_Airport r4Number "1".
- Northeast_Florida_Regional_Airport r4Number "12".
- O'Hare_International_Airport r4Number "9".
- Oakland_International_Airport r4Number "15".
- Ohio_State_University_Airport r4Number "14".
- Oral_Ak_Zhol_Airport r4Number "14".
- Orlando_International_Airport r4Number "18".
- Orlando_Sanford_International_Airport r4Number "18".
- Parafield_Airport r4Number "8".
- Philadelphia_International_Airport r4Number "17".
- Pittsburgh_IAP_Air_Reserve_Station r4Number "14".
- Pittsburgh_International_Airport r4Number "14".
- Pleasant_Valley_Airport r4Number "14".
- Portage_la_Prairie_Southport_Airport r4Number "13".
- Predannack_Airfield r4Number "5".
- RAF_Alconbury r4Number "18".
- RAF_Bourn r4Number "0".
- RAF_Breighton r4Number "0".
- RAF_Fairwood_Common r4Number "33".
- RAF_Henlow r4Number "13".
- RAF_Leicester_East r4Number "15".
- RAF_Molesworth r4Number "0".
- RAF_Strubby r4Number "0".
- RAF_Syerston r4Number "11".
- Redhill_Aerodrome r4Number "7".
- Renmark_Airport r4Number "12".
- Räyskälä_Airfield r4Number "12".
- Salina_Municipal_Airport r4Number "4".
- Salt_Lake_City_Air_National_Guard_Base r4Number "14".
- Salt_Lake_City_International_Airport r4Number "14".
- San_Angelo_Army_Air_Field r4Number "14".
- San_Francisco_International_Airport r4Number "1".
- Shanghai_Pudong_International_Airport r4Number "TBD".
- Sheppard_Air_Force_Base r4Number "17".
- Sherburn-in-Elmet_Airfield r4Number "1".
- Shoreham_Airport r4Number "2".
- Slovenj_Gradec_Airport r4Number "14".
- Smith_Field_(Indiana) r4Number "18".
- South_Texas_Regional_Airport_at_Hondo r4Number "17".
- St._Petersburg–Clearwater_International_Airport r4Number "18".
- Stout_Army_Air_Field r4Number "13".
- Stuttgart_Army_Airfield_(Arkansas) r4Number "13".
- Sywell_Aerodrome r4Number "3".
- Tamworth_Airport r4Number "6".
- Tauranga_Airport r4Number "16".
- Tel_Nof_Airbase r4Number "9".
- Terlet_Airfield r4Number "12".
- Toronto_Pearson_International_Airport r4Number "6".
- Truth_or_Consequences_Municipal_Airport r4Number "15".
- Twitchell_Airport r4Number "15".
- Ufa_International_Airport r4Number "14".
- University_of_Illinois_Willard_Airport r4Number "18".
- Victoria_Regional_Airport r4Number "17".
- Vladivostok_International_Airport r4Number "16".
- Wanganui_Airport r4Number "11".
- Washington_Dulles_International_Airport r4Number "12".
- West_Mesa_Airport r4Number "16".
- Wichita_Falls_Municipal_Airport r4Number "17".
- Wiener_Neustadt_West_Airport r4Number "18".
- Will_Rogers_World_Airport r4Number "18".
- William_P._Hobby_Airport r4Number "17".
- Willow_Run_Airport r4Number "14".
- Wittman_Regional_Airport r4Number "13".
- Wurtsboro–Sullivan_County_Airport r4Number "18".
- Yuma_International_Airport r4Number "17".
- Zurich_Airport r4Number "4".
- Željava_Air_Base r4Number "1".
- Río_Mayo_Airport r4Number "10".