Asian Highway 15 (AH15) is a road in the Asian Highway Network running from Hồng Lĩnh, Vietnam to Udon Thani, Thailand connecting AH1 to AH12.
The route is as follows:
Vietnam QL8: Vinh () - Cau Treo
Laos Route 8: Nam Phao - Vieng Kham Route 13 (Concurrent with ): Vieng Kham - Thakhek
Thailand Route 295: Third Thai–Lao Friendship Bridge Route 212: At Samat - Nakhon Phanom Route 22: Nakhon Phanom - Udon Thani
References