Area Codes Bhutan The Area Codes of Bhutan: City/Town or Region Area code 1.Paro, Drukgyel Dzong, Shaba, Ha, Damthang, Chapcha, Wangkha, Tsimasham82.Phuntsholing, Pasakha, Gedu, Tala, Padechu, Sinchekha, Lhamoi Zingkha, Samtse, Gomtu, Chargary, Sibsoo5