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List of highways numbered 400

The following highways are numbered 400: AustraliaMurray Valley HighwayCanadaOntario Highway 400CroatiaD400 roadCubaVía Monumental (2–400)IrelandR400 roadJapanJapan National Route 400Korea, SouthSouth AfricaR400 road in the Eastern CapeSpainN-400 roadTurkeyD.400, a west–east sta…

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