30o.ar
30o.archi
30o.art
30o.army
30o.arab
30o.co
30o.io
30o.us
30o.de
30o.at
30o.nz
30o.be
30o.cl
30o.se
30o.si
30o.ею
30o.ad
30o.ua
30o.gw
30o.рф
30o.co.us
30o.arpa

co.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.