| CZ | AS207696 | Dopravni podnik hl.m. Prahy, a.s. |
| CZ | AS12344 | CZECH IT CLUSTER, druzstvo |
| CZ | AS35096 | Alef Nula a.s. |
| CZ | AS47749 | ORIFLAME SOFTWARE s.r.o. |
| CZ | AS47767 | Regionalni centrum Olomouc s.r.o. |
| CZ | AS57007 | NITEX |
| BE | AS205080 | Societe Internationale de Telecommunications Aeronautiques |
| DE | AS29298 | SUSE Linux |
| SK | AS198543 | MAC TV s.r.o. |
| SK | AS208882 | Automation & Business, s.r.o., COOL NET |
| CZ | AS214945 | Ministerstvo zahranicnich veci Ceske Republiky |
| CZ | AS213152 | Narodni bezpecnostni urad Czech Republic |
| CZ | AS206613 | Tipsport.net a.s. |
| SK | AS214396 | Sudolio a.s. |
| CZ | AS15380 | Air Navigation Services of the Czech Republic, state enterprise |
| CZ | AS208414 | WEDOS Global |
| CZ | AS31349 | a-net Liberec |
| SK | AS48304 | Digmia s.r.o. |
| CZ | AS12767 | T-Systems CZ |
| CZ | AS43757 | ICZ a.s. |
| SK | AS200222 | Sama Tech s.r.o. |
| CZ | AS203165 | Statni pokladna Centrum sdilenych sluzeb |
| CZ | AS13036 | T-Mobile CZ AS13036 |
| US | AS3573 | Accenture LLP |
| CZ | AS203208 | Czech Telecommunication Office |
| CZ | AS56973 | VITKOVICE IT SOLUTIONS a.s. |
| CZ | AS204394 | Cortex, a.s. |
| CZ | AS48417 | ITS akciova spolecnost |
| CZ | AS196861 | DIGITAL ACTION s.r.o. |
| CZ | AS20708 | SKODA AUTO a.s. |
| SK | AS31127 | SATRO s.r.o. |
| SK | AS202564 | ITcity |
| CZ | AS48451 | Prazska energetika, a.s. |
| CZ | AS198143 | Ceska Posta s.p. |
| CZ | AS202877 | vejnet |
| CZ | AS50695 | VLTAVA LABE MEDIA a.s. |
| SK | AS202876 | BBNW s.r.o. |
| CZ | AS28892 | Cesky urad zememericky a katastralni |
| CZ | AS198101 | Kooperativa pojistovna, a.s., Vienna Insurance Group |
| CZ | AS48298 | MINISTERSTVO VNITRA CR |
| SK | AS204716 | PLAYMAX s.r.o. |
| CZ | AS211731 | Ministry of labour and social affairs |
| CZ | AS199220 | KrU Stredoceskeho kraje |
| US | AS27500 | ICANN Meetings |
| SK | AS49117 | DTnet Detva s.r.o. |
| CZ | AS199806 | DCIT-AS-CZ |
| CZ | AS50698 | TETA |
| SK | AS50881 | ESET, spol. s r.o. |
| CZ | AS198282 | CAH Building s.r.o. |
| CZ | AS58239 | hanspaul-city.net |
