Phayao
Phayao is one of Thailand's seventy-seven provinces lies in upper northern Thailand. Neighboring provinces are Nan, Phrae, Lampang, and Chiang Rai. In the northeast it borders Xaignabouli of Laos. Wikipedia
Area: 2,446 mi²
Population: 475,215 (2018)
Calling code: 054
Capital: Phayao (town)
ISO 3166 code: TH-56
Postal code: 56xxx