🇪🇷Eritrea (officially: State of Eritrea) is filed in ISO 3166-1 under alpha-2 code ER, alpha-3 code ERI and numeric code 232. Its international dialing code is +291 and its country-code top-level domain is .er. The capital is Asmara. Region: Africa.
Currency: ERN (Nakfa).
The two-letter code appears in domains, locales (like en-ER), shipping and licence plates; the three-letter code in passports, finance and sport; the numeric code where Latin script is unavailable.