Mueang Nong Khai - Tha Bo - Bueng Kan - Phon Charoen - Phon Phisai - So Phisai - Si Chiang Mai - Sangkhom - Seka - Pak Khat - Bueng Khong Long - Si Wilai - Bung Khla - Sakhrai - Fao Rai - Rattanawapi - Pho Tak