| CZ | AS212859 | KXCOMM s.r.o. |
| CZ | AS62102 | Prazska plynarenska, a.s. |
| CZ | AS43757 | ICZ a.s. |
| CZ | AS60266 | EmbedIT s.r.o. |
| CZ | AS198605 | AVAST Software s.r.o. |
| CZ | AS208329 | Ceska televize |
| CZ | AS20708 | SKODA AUTO a.s. |
| CZ | AS206613 | Tipsport.net a.s. |
| CZ | AS211731 | Ministry of labour and social affairs |
| CZ | AS48451 | Prazska energetika, a.s. |
| CZ | AS215711 | The Ministry of Agriculture of the Czech Republic |
| CZ | AS211274 | Quadruple a.s. |
| CZ | AS38952 | MAFRA, a.s. |
| US | AS23154 | Sanmina-SCI Corporation |
| CZ | AS62083 | Fio banka, a.s. |
| CZ | AS49580 | Monet +, a.s. |
| CZ | AS25093 | Ceska Sporitelna a.s. |
| CZ | AS28892 | Cesky urad zememericky a katastralni |
| CZ | AS199220 | KrU Stredoceskeho kraje |
| CZ | AS199490 | INTERCONNECT s.r.o. |
| CZ | AS203411 | FORTUNA GAME a.s. |
| CZ | AS204172 | TTC TELEKOMUNIKACE s.r.o. |
| CZ | AS198101 | Kooperativa pojistovna, a.s., Vienna Insurance Group |
| BE | AS205080 | Societe Internationale de Telecommunications Aeronautiques |
| CZ | AS206683 | Moravskoslezske inovacni centrum Ostrava |
| CZ | AS25238 | MONETA Money Bank, a.s. |
| CZ | AS204907 | Air Bank a.s. |
| CZ | AS21241 | Global Payments Europe, s.r.o. |
| CZ | AS201730 | DataSpring |
| CZ | AS35096 | Alef Nula a.s. |
| GB | AS50948 | AMDOCS (UK) LIMITED |
| CZ | AS2571 | DHL Information Services (Europe) s.r.o |
| NL | AS21205 | ING Bank N.V. |
| CZ | AS208906 | SYNOT ICT Services, a.s. |
| CZ | AS25321 | Brink's Cash Solutions (CZ), a.s. |
| CZ | AS15380 | Air Navigation Services of the Czech Republic, state enterprise |
| CZ | AS197920 | SKODA ICT s.r.o. |
| US | AS27500 | ICANN Meetings |
| CZ | AS198991 | TV Nova sro |
| CZ | AS208712 | CENDIS, s.p. |
| CZ | AS56891 | Narodni rozvojova banka, a.s. |
| CZ | AS198282 | CAH Building s.r.o. |
| BE | AS205233 | KBC GLOBAL SERVICES NV |
| CZ | AS201163 | Komercni banka, a.s. |
| MK | AS205347 | Information Technology Company AVENGA DOOEL Skopje |
| CZ | AS43866 | Altron a.s. |
| CZ | AS43037 | Seznam.cz, a.s. |
| CZ | AS206908 | FORTUNA GAME a.s. |
| CZ | AS208950 | Ezpada s.r.o |
| CZ | AS199059 | Maurice Ward & Co., s.r.o. |
