National Route 463 is a national highway of

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

connecting

Koshigaya, Saitama is a city located in Saitama Prefecture, Japan. , the city had an estimated population of 345,353 in 158,022 households and a population density of 5700 persons per km². The total area of the city is . It is famous for producing daruma dolls. ...

and

Iruma, Saitama 260px, Tea fields in Iruma 260px, Kasumi River in Iruma is a city located in Saitama Prefecture, Japan. , the city had an estimated population of 147,166 in 66,516 households and a population density of 3300 persons per km². The total area of ...

in Japan, with a total length of 43.8 km (27.22 mi).

References

National highways in Japan Roads in Saitama Prefecture {{Japan-road-stub