UA is the ISO 3166-1 alpha-2 code for Ukraine. In a broader sense, “sigla” can refer to country codes used in various contexts (e.g., vehicle plates, international abbreviations), and Ukraine’s two-letter code is commonly represented as UA in many standards and databases. If you need more specific mappings (alpha-3 code, numeric code, or usage in a particular domain like vehicles or internet domains), I can provide those as well.
