| 释义 |
{{Infobox road
|country=JPN
|type=National
|route=423
|maint=
|alternate_name=国道423号
|map=
|image=Route423 Toyono.jpg
|length_km=53.5
|length_round=
|length_ref=
|established=
|direction_a=
|terminus_a=
|junction=
|direction_b=
|terminus_b=
|browse=
}}National Route 423 is a national highway of Japan connecting Kita-ku, Osaka and Kameoka, Kyoto in Japan, with a total length of 53.5 km (33.24 mi). {{commonscat|Route 423 (Japan)}}{{Japan-road-stub}} 1 : National highways in Japan |