🇨🇰Cook Islands (officially: Cook Islands) is filed in ISO 3166-1 under alpha-2 code CK, alpha-3 code COK and numeric code 184. Its international dialing code is +682 and its country-code top-level domain is .ck. The capital is Avarua. Region: Oceania.
Currency: NZD (New Zealand Dollar).
The two-letter code appears in domains, locales (like en-CK), shipping and licence plates; the three-letter code in passports, finance and sport; the numeric code where Latin script is unavailable.