Every extension,
A to Z.
Country codes, new generic extensions, .pk second levels and brand TLDs. Each one has a page with the price, who can register it, transfer rules and FAQs.
.radio.fm is the Radio extension under Micronesia.
.radom.pl is the Regional, Radom extension under Poland.
.rawa-maz.pl is the Regional, Rawa Mazowiecka extension under Poland.
.re.kr is the Research extension under South Korea.
.realestate.pl is the Real estate extension under Poland.
.recht.pro belongs to PRO and is meant for Lawyers, German (legacy) websites.
.rel.pl is the Religion extension under Poland.
.ru.com is the Russia style, under .com extension under COM.
.rybnik.pl belongs to Poland and is meant for Regional, Rybnik websites.
The .rzeszow.pl extension is used for Regional, Rzeszów names in Poland.