Kunia Regional SIGINT Operations Center

21°28′32.99″N 158°3′4.16″W / 21.4758306°N 158.0511556°W / 21.4758306; -158.0511556

The Kunia Regional SIGINT Operations Center (KRSOC, also pronounced "Kay-ARSock"), also known as the Kunia Tunnel or the Regional Signals Intelligence Operations Center Kunia, was a United States National Security Agency facility that was located on Kunia Road between Kunia Camp and Wheeler Army Airfield in central Oahu, Hawaii. In 2012, the facility was replaced by the Hawaii Cryptologic Center.