🇺🇸United States (officially: United States of America) is filed in ISO 3166-1 under alpha-2 code US, alpha-3 code USA and numeric code 840. Its international dialing code is +1 and its country-code top-level domain is .us. The capital is Washington D.C.. Region: Americas.
Currency: USD (US Dollar), USN (US Dollar (Next day)).
The two-letter code appears in domains, locales (like en-US), shipping and licence plates; the three-letter code in passports, finance and sport; the numeric code where Latin script is unavailable.