Phra Nakhon SI Ayutthaya Chainat, kamphaeng Phet, Tak, Lampang, Nakhon sawan, saraburi, Lopburi, and ends at Amphoe Mae Sai, Chiang Rai province including approximately 1005 km.
Ayutthaya, Saraburi, Lop Buri, Chai Nat, Nakhon Sawan, Kamphaeng Phet, Tak, Lampang and Mae Sai, the ultimate destination. Chiang Rai A total distance of 1005 kilometers