okf.or.kr
okf.co
okf.io
okf.us
okf.at
okf.nz
okf.be
okf.cl
okf.se
okf.si
okf.ею
okf.ua
okf.рф
okf.co.us

okf.us

Extension: .us

.us is the country-code TLD for United States.

Learn more about .us at IANA or Wikipedia, or view all top-level domains.