National Route 403
国道403号
Route information
Length	352.8 km[1] (219.2 mi)
Location
Country	Japan
Highway system
National highways of Japan Expressways of Japan
←National Route 402 →National Route 404

National Route 403 is anational highway ofJapan connectingChūō-ku, Niigata andMatsumoto, Nagano in Japan, with a total length of 352.8 km (219.22 mi).

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