Registrars: R
30 registrars
| Registrar | IANA ID | Country | Registrar family | Website |
|---|---|---|---|---|
| Rabbitsfoot.com LLC d/b/a Oxygen.nyc | 3238 | United States | — | oxygen.nyc |
| Rainydaydomains.com LLC | 1351 | United States | — | networksolutions.com |
| Rally Cry Domains, LLC | 2351 | United States | — | networksolutions.com |
| Rank USA, LLC | 961 | India | — | rankusa.com |
| Rare Gem Domains LLC | 2877 | United States | — | networksolutions.com |
| Realtime Register B.V. | 839 | Netherlands | — | realtimeregister.com |
| Rebel Ltd | 600 | Turks and Caicos Islands | — | rebel.com |
| Rebel.ca Corp. | 735 | Canada | — | rebel.ca |
| ReclaimDomains LLC | 1691 | United States | — | namebright.com |
| Regional Network Information Center, JSC dba RU-CENTER | 463 | Russia | — | nic.ru |
| Register Names, LLC | 658 | United States | — | registernames.com |
| Register SpA | 168 | Italy | — | register.it |
| Register.ca Inc. | 1375 | Canada | — | register.ca |
| Register.com - Network Solutions, LLC | 9 | United States | — | register.com |
| Register4Less, Inc. | 1082 | United States | — | register4less.com |
| Registrar of Domain Names REG.RU LLC | 1606 | Russia | — | reg.ru |
| Registrar R01 LLC | 1426 | Russia | — | r01.ru |
| RegistrarDirect LLC | 1692 | United States | — | namebright.com |
| RegistrarSafe, LLC | 3237 | United States | — | registrarsafe.com |
| RegistrarSEC LLC | 2475 | United States | — | registrarsec.com |
| Registrator Domenov LLC | 3224 | Russia | — | mastername.ru |
| RegistryGate GmbH | 1328 | Germany | — | registrygate.com |
| Regtime Ltd. | 1362 | Russia | — | webnames.ru |
| Reliable Software | 3246 | Belarus | — | hoster.by |
| Retail Domains, LLC | 1054 | United States | — | networksolutions.com |
| Ripcord Domains, LLC | 2267 | United States | — | networksolutions.com |
| Ripcurl Domains, LLC | 2268 | United States | — | networksolutions.com |
| Riptide Domains, LLC | 2269 | United States | — | networksolutions.com |
| RiVidium Inc. | 3856 | United States | — | triplecyber.com |
| Rockenstein AG | 605 | Germany | — | rockenstein.de |