The US Islands (USi) Awards program had its 2000th island qualified from Puerto Rico. US has been in existence since 1994, when US island activating began on HF. On September 22, Cayo Afuera Island, USI# PR-047S, was qualified by Team WP4I (Anthony, WP4I; Agapito, WP4LBN; Edward, KP4EGM, and soon-to-be-ham, Jose Rodriguez) — achieving the 2000 mark. USI is not limited to island collecting; it also embraces states, counties and DX countries.

The United States Islands Awards Program covers saltwater and inland freshwater river or lake islands of the 50 US states and US territories or protectorates. USi was formed to further enhance “island chasing” that has become popular on the Amateur Radio bands. Its goal is to promote a simple, but effective, system of island collecting, that operates totally on the honor system. USi is open to interested radio amateurs and SWLs. The USi program is not affiliated with the Islands on the Air (IOTA) program, sponsored by the Radio Society of Great Britain.