.ky.ky .ky .ky is the Internet country code top-level domain (ccTLD) for the Cayman Islands. The code was chosen as other possible options had already been allocated. Registration was limited to residents and registered companies in the Cayman Islands with a local address, but this restriction was removed in September 2015. The Cayman Islands also has the international three-letter code CYM and has won a bid to be awarded the .cym domain in a future expansion of the top-level domain space. Second level domains. Registrations are permitted directly at the second level, or at the third level beneath  these names: History. IANA received a request to establish the .ky ccTLD in April 1995. From 1995 to 2002, the .ky ccTLD registry was operated by an individual, Clint Mole, initially as an employee of the Cayman Islands government, but then later under contract with a company Domain Name Trust (DNT). In 2002, the Cayman Islands government established the Information and Communications Technical Authority (ICTA) and contacted ICANN requesting that administrative operation be changed to ICTA. In June 2003, IANA and ICANN concluded that the .ky ccTLD should be redelegated to ICTA. In January 2015 the Cayman Islands ICTA announced  a partnership with Uniregistry for the operation of the .ky name extension. Uniregistry became the first ICANN accredited registrar to retail .ky names on March 2, 2015. .ky .ky is the Internet country code top-level domain (ccTLD) for the Cayman Islands. The code was chosen as other possible options had already been allocated. Registration was limited to residents and registered companies in the Cayman Islands with a local address, but this restriction was removed in September 2015. The Cayman Islands also has the international three-letter code CYM and has won a bid to be awarded the .cym domain