🇧🇹Bhutan (officially: Kingdom of Bhutan) is filed in ISO 3166-1 under alpha-2 code BT, alpha-3 code BTN and numeric code 064. Its international dialing code is +975 and its country-code top-level domain is .bt. The capital is Thimphu. Region: Asia.
Currency: BTN (Ngultrum), INR (Indian Rupee).
The two-letter code appears in domains, locales (like en-BT), shipping and licence plates; the three-letter code in passports, finance and sport; the numeric code where Latin script is unavailable.