🇲🇷Mauritania (officially: Islamic Republic of Mauritania) is filed in ISO 3166-1 under alpha-2 code MR, alpha-3 code MRT and numeric code 478. Its international dialing code is +222 and its country-code top-level domain is .mr. The capital is Nouakchott. Region: Africa.
Currency: MRU (Ouguiya).
The two-letter code appears in domains, locales (like en-MR), shipping and licence plates; the three-letter code in passports, finance and sport; the numeric code where Latin script is unavailable.