Matches in DBpedia 2014 for { ?s <http://dbpedia.org/property/r2Number> ?o. }
- Mariupol_International_Airport r2Number "2".
- Marne_Barracks r2Number "0".
- Marseille_Provence_Airport r2Number "13".
- Marshall_Army_Airfield r2Number "4".
- Marshall_County_Airport_(Illinois) r2Number "18".
- Marshall_Memorial_Municipal_Airport r2Number "9".
- Marshfield_Municipal_Airport_(Wisconsin) r2Number "16".
- Martha's_Vineyard_Airport r2Number "15".
- Martín_Miguel_de_Güemes_International_Airport r2Number "6".
- Mary_International_Airport r2Number "18".
- Maryborough_Airport_(Queensland) r2Number "17".
- Maryborough_Airport_(Victoria) r2Number "6".
- Mashhad_International_Airport r2Number "13".
- Mason_City_Municipal_Airport r2Number "12".
- Mason_County_Airport_(Michigan) r2Number "1".
- Mason_County_Airport_(Texas) r2Number "13".
- Massena_International_Airport r2Number "9".
- Masvingo_Airport r2Number "10".
- Matagorda_Island_Air_Force_Base r2Number "9".
- Matagorda_Peninsula_Army_Airfield r2Number "1".
- Matsushima_Air_Field r2Number "15".
- Maury_County_Airport r2Number "17".
- Maxwell_Air_Force_Base r2Number "18".
- Maya-Maya_Airport r2Number "5".
- Mayes_Airport r2Number "18".
- McAllen-Miller_International_Airport r2Number "18".
- McCarran_International_Airport r2Number "1".
- McChord_Field r2Number "160".
- McConnell_Air_Force_Base r2Number "1".
- McCook_Army_Airfield r2Number "13".
- McCook_Ben_Nelson_Regional_Airport r2Number "4".
- McEntire_Joint_National_Guard_Base r2Number "14".
- McGhee_Tyson_Air_National_Guard_Base r2Number "5".
- McGhee_Tyson_Airport r2Number "5".
- McGrath_Airport r2Number "7".
- McGuire_Air_Force_Base r2Number "18".
- McKellar-Sipes_Regional_Airport r2Number "11".
- McMinnville_Municipal_Airport r2Number "17".
- McNary_Field r2Number "16".
- McVille_Airport r2Number "18".
- McVille_Municipal_Airport r2Number "18".
- Meadow_Lake_Airport_(Colorado) r2Number "8".
- Meadow_Lake_Airport_(Saskatchewan) r2Number "17".
- Meadows_Field_Airport r2Number "12".
- Schlenker_Airport r2Number "18".
- Medicine_Hat_Airport r2Number "9".
- Medina_Municipal_Airport r2Number "9".
- Meekatharra_Airport r2Number "15".
- Mehrabad_International_Airport r2Number "11".
- Mejametalana_Airport r2Number "11".
- Melbourne_Airport r2Number "16".
- Melbourne_International_Airport r2Number "9".
- Melita_Airport r2Number "17".
- Melsbroek_Air_Base r2Number "7".
- Melton_Airfield r2Number "4".
- Melun_Villaroche_Aerodrome r2Number "1".
- Melville_Municipal_Airport r2Number "10".
- Memorial_Field_Airport r2Number "13".
- Memphis_Air_National_Guard_Base r2Number "18".
- Memphis_International_Airport r2Number "18".
- Memphis_Municipal_Airport r2Number "17".
- Mena_Intermountain_Municipal_Airport r2Number "17".
- Menagh_Military_Airbase r2Number "0".
- Menomonie_Municipal_Airport r2Number "18".
- Menorca_Airport r2Number "1".
- Meridian_Regional_Airport r2Number "4".
- Merle_K._(Mudhole)_Smith_Airport r2Number "16".
- Merrill_Field r2Number "7".
- Merrill_Municipal_Airport r2Number "16".
- Merrimack_Valley_Seaplane_Base r2Number "4".
- Mersa_Matruh_Airport r2Number "15".
- Merville–Calonne_Airport r2Number "4".
- Metlakatla_Seaplane_Base r2Number "N/S".
- Mettel_Field r2Number "4".
- Meucon_Airport r2Number "8".
- Mexico_Farms_Airport r2Number "16".
- Mexico_Memorial_Airport r2Number "18".
- Meyers-Diver's_Airport r2Number "18".
- Miami_International_Airport r2Number "8".
- Michael_J._Smith_Field r2Number "8".
- Mid-Ohio_Valley_Regional_Airport r2Number "10".
- Mid-State_Regional_Airport r2Number "6".
- MidAmerica_St._Louis_Airport r2Number "14".
- MidCoast_Regional_Airport_at_Wright_Army_Airfield r2Number "6".
- Mid_Delta_Regional_Airport r2Number "18".
- Middle_Georgia_Regional_Airport r2Number "13".
- Middleton_Field r2Number "10".
- Middleton_Island_Airport r2Number "12".
- Middleton_Municipal_Airport r2Number "1".
- Middletown_Regional_Airport r2Number "8".
- Midland_Airpark r2Number "16".
- Midland_Army_Airfield r2Number "0".
- Midland_International_Airport r2Number "10".
- Miguel_Hidalgo_y_Costilla_International_Airport r2Number "2".
- Mildura_Airport r2Number "18".
- Miles_City_Airport r2Number "12".
- Miley_Memorial_Field r2Number "8".
- Tulln r2Number "8".
- Miller_Airport_(Indiana) r2Number "18".
- Miller_Field_(airport) r2Number "3".