Список четырехсимвольных доменов в национальной зоне РФ:
0 1 2 3 4 5 6 7 8 9 А Б В Г Д Е Ё Ж З И Й К Л М Н О П Р С Т У Ф Х Ц Ч Ш Щ Ь Ы Ъ Э Ю Я
| Имя домена РФ | Зарегистрирован | Оплачен до | Администратор | Регистратор | |
| 376 | 4-ЫЙ.рф | 29.11.2010 | 29.11.2019 | R01 Personal Data Operator protected | R01-RF |
| 377 | 4000.рф | 11.11.2010 | 11.11.2019 | OOO Personal-N | NAUNET-RF |
| 378 | 4004.рф | 15.07.2018 | 15.07.2019 | Private Person | NETHOUSE-RF |
| 379 | 4012.рф | 16.12.2015 | 16.12.2019 | R01 Personal Data Operator protected | AXELNAME-RF |
| 380 | 402М.рф | 16.11.2010 | 16.11.2019 | Kochetkov Mixail Sergeevich | DOMENUS-RF |
| 381 | 40ИН.рф | 12.11.2010 | 12.11.2019 | Joint Stock Company "Agenstvo Vechnyh Tscennostey" | RUCENTER-RF |
| 382 | 40ОБ.рф | 25.01.2011 | 25.01.2020 | R01 Personal Data Operator protected | R01-RF |
| 383 | 4112.рф | 11.11.2010 | 11.11.2019 | R01 Personal Data Operator protected | REGRU-RF |
| 384 | 4152.рф | 11.11.2010 | 11.11.2019 | R01 Personal Data Operator protected | REGRU-RF |
| 385 | 4162.рф | 11.11.2010 | 11.11.2019 | R01 Personal Data Operator protected | REGRU-RF |
| 386 | 4212.рф | 18.04.2015 | 18.04.2019 | R01 Personal Data Operator protected | REGRU-RF |
| 387 | 4232.рф | 16.12.2015 | 16.12.2019 | R01 Personal Data Operator protected | AXELNAME-RF |
| 388 | 4234.рф | 10.11.2015 | 10.11.2019 | R01 Personal Data Operator protected | AXELNAME-RF |
| 389 | 4236.рф | 11.11.2010 | 11.11.2019 | Private Person | NAUNET-RF |
| 390 | 4242.рф | 11.11.2010 | 11.11.2019 | JSC "RU-CENTER" | REGRU-RF |
| 391 | 4320.рф | 11.11.2010 | 11.11.2019 | R01 Personal Data Operator protected | R01-RF |
| 392 | 4321.рф | 12.11.2010 | 12.11.2019 | R01 Personal Data Operator protected | RUCENTER-RF |
| 393 | 4343.рф | 13.05.2015 | 13.05.2019 | R01 Personal Data Operator protected | RUCENTER-RF |
| 394 | 43КМ.рф | 25.07.2012 | 25.07.2019 | Private Person | REGTIME-RF |
| 395 | 43РФ.рф | 22.01.2018 | 22.01.2019 | Evgeny S Yakunin | REGRU-RF |
| 396 | 4444.рф | 11.11.2010 | 11.11.2019 | JSC "RU-CENTER" | R01-RF |
| 397 | 4455.рф | 01.04.2016 | 01.04.2019 | JS Venture RSIC | REGRU-RF |
| 398 | 46ТВ.рф | 04.02.2011 | 04.02.2019 | Stanislav Pupko | RUCENTER-RF |
| 399 | 4722.рф | 16.12.2015 | 16.12.2019 | R01 Personal Data Operator protected | AXELNAME-RF |
| 400 | 4725.рф | 12.02.2013 | 12.02.2019 | R01 Personal Data Operator protected | RUCENTER-RF |