.ORG, as a generic top-level domain (gTLD) of the Domain Name System (DNS) used on the Internet, was established in 1985. It is managed by Public Interest Registry (PIR), a non-profit organization established by the Internet Society (ISOC) in 2002. It has been administered by PIR (Public Interest Registry) since 2003.
The domain is generally used by schools, open-source projects, and communities, but also by some for-profit entities. The number of registered domains in .org has reached one million in the 1990s, to ten million in 2012, and held steady between ten and eleven million since then.
In November 2019, the Internet Society agreed to sell the Public Interest Registry (PIR) to Ethos Capital for US$1.135 billion. The sale was postponed first, then canceled by ICANN.
.org ranks #5 among all domain extensions, and #3 among all generic extensions (gTLDs). Currently, there are 10.5M registered .org domain names. Public Interest Registry is the current registry of .org extension.