Explore details about location 国道２３号. 国道２３号 is a location situated within the 西尾市 alongside other areas such as 岡崎碧南線, 刈宿住崎線, 西尾知多線. Additionally, some smaller parts of 国道２３号 include specific areas like 平坂街道, 蒲郡碧南線 adding to the diversity of its landscape.