A list of all Czech Republic ASNs including hosting providers, ISPs, and businesses with announced IPv4 and IPv6 prefixes.
| ASN | Type | IPv4 Routes | IPv6 Routes | Company |
|---|---|---|---|---|
| AS201163 | Other Business | 3 | 0 | Komercni banka, a.s. |
| AS202948 | Other Business | 3 | 0 | FORTUNA GAME a.s. |
| AS204907 | Other Business | 3 | 0 | Air Bank a.s. |
| AS207095 | Other Business | 3 | 0 | FORTUNA GAME a.s. |
| AS208950 | Other Business | 3 | 0 | Ezpada s.r.o |
| AS21241 | Other Business | 3 | 0 | Global Payments Europe, s.r.o. |
| AS213057 | Other Business | 3 | 0 | innogy Ceska republika a.s |
| AS213223 | Other Business | 3 | 0 | GasNet, s.r.o. |
| AS28905 | ISP & Mobile | 3 | 0 | OMEGA plus Chrudim s.r.o. |
| AS47131 | Other Business | 3 | 0 | PH, spol. s r. o. |
| AS48574 | ISP & Mobile | 3 | 0 | T-Mobile Czech Republic a.s. |
| AS52154 | Other Business | 3 | 0 | mjanik.net s.r.o. |
| AS62159 | ISP & Mobile | 3 | 0 | Happy Technik s.r.o. |
| AS60266 | Other Business | 2 | 5 | EmbedIT s.r.o. |
| AS196653 | ISP & Mobile | 2 | 3 | BEST-NET s.r.o. |
| AS203208 | Government | 2 | 3 | Czech Telecommunication Office |
| AS61110 | Government | 2 | 3 | Sprava informacnich technologii mesta Plzne, p.o. |
| AS196952 | ISP & Mobile | 2 | 2 | BEZVANET s.r.o. |
| AS199711 | Government | 2 | 2 | National Cyber and Information Security Agency |
| AS204165 | ISP & Mobile | 2 | 2 | Cznet s.r.o. |
| AS206420 | ISP & Mobile | 2 | 2 | KABEL servis Praha spol. s r.o. |
| AS20701 | Other Business | 2 | 2 | CZ.NIC, z.s.p.o. |
| AS210139 | ISP & Mobile | 2 | 2 | DPT s.r.o. |
| AS215588 | Other Business | 2 | 2 | Notino s.r.o. |
| AS41088 | ISP & Mobile | 2 | 2 | "N_SYS s.r.o." |
| AS41453 | Other Business | 2 | 2 | SITEL spol. s r.o. |
| AS48131 | Other Business | 2 | 2 | IXOXI s.r.o. |
| AS49101 | ISP & Mobile | 2 | 2 | CEZNET s.r.o. |
| AS51586 | Hosting Provider | 2 | 2 | ServerZone s.r.o. |
| AS52115 | ISP & Mobile | 2 | 2 | JaroNet-services s.r.o. |
| AS196735 | ISP & Mobile | 2 | 1 | JON.CZ s.r.o. |
| AS196843 | ISP & Mobile | 2 | 1 | KHnet.info, z.s. |
| AS196861 | ISP & Mobile | 2 | 1 | DIGITAL ACTION s.r.o. |
| AS197029 | Other Business | 2 | 1 | LAM plus s.r.o. |
| AS197046 | ISP & Mobile | 2 | 1 | FIXNET s.r.o. |
| AS197393 | ISP & Mobile | 2 | 1 | ISP Alliance a.s. |
| AS197798 | ISP & Mobile | 2 | 1 | Net-Connect s.r.o. |
| AS198161 | Other Business | 2 | 1 | Sokolovska uhelna, pravni nastupce, a.s. |
| AS198248 | Other Business | 2 | 1 | Richard Filip |
| AS198284 | Government | 2 | 1 | Mesto Velka Bystrice |
| AS198627 | Other Business | 2 | 1 | Shoptet, a.s. |
| AS198725 | Other Business | 2 | 1 | Ultimum Technologies a.s. |
| AS198977 | Other Business | 2 | 1 | UnArtel s.r.o. |
| AS199220 | Government | 2 | 1 | KrU Stredoceskeho kraje |
| AS199803 | Other Business | 2 | 1 | ComSource s.r.o. |
| AS200844 | Other Business | 2 | 1 | STUDENT AGENCY k.s. |
| AS201265 | Hosting Provider | 2 | 1 | ANAFRA a.s. |
| AS201648 | Government | 2 | 1 | Plzensky kraj |
| AS201654 | ISP & Mobile | 2 | 1 | CEZNET s.r.o. |
| AS201727 | ISP & Mobile | 2 | 1 | Blond & Brown s.r.o. |
| AS201931 | ISP & Mobile | 2 | 1 | LBnet.cz s.r.o. |
| AS202618 | ISP & Mobile | 2 | 1 | Rychly drat, s.r.o. |
| AS202872 | Other Business | 2 | 1 | KME, spol. s r. o. |
| AS203018 | ISP & Mobile | 2 | 1 | PAMICO CZECH, s.r.o. |
| AS205400 | Other Business | 2 | 1 | VIVO CONNECTION spol. s r.o. |
| AS20609 | ISP & Mobile | 2 | 1 | KAZA.cz s.r.o. |
| AS206429 | ISP & Mobile | 2 | 1 | CORSAT s.r.o |
| AS206703 | Other Business | 2 | 1 | Netcom Solutions s.r.o. |
| AS206785 | Government | 2 | 1 | Magistrat mesta Brna |
| AS209795 | ISP & Mobile | 2 | 1 | SPC-net s.r.o. |
| AS210958 | ISP & Mobile | 2 | 1 | Fastport a.s. |
| AS211731 | Government | 2 | 1 | Ministry of labour and social affairs |
| AS211774 | ISP & Mobile | 2 | 1 | ign.cz internet, s.r.o. |
| AS213152 | Other Business | 2 | 1 | Narodni bezpecnostni urad Czech Republic |
| AS215308 | ISP & Mobile | 2 | 1 | Spolek PASKOV.net |
| AS215711 | Government | 2 | 1 | The Ministry of Agriculture of the Czech Republic |
| AS31349 | ISP & Mobile | 2 | 1 | a-net Liberec s.r.o. |
| AS34222 | Hosting Provider | 2 | 1 | ZONER a.s. |
| AS39817 | ISP & Mobile | 2 | 1 | OvaNet, a.s. |
| AS41670 | ISP & Mobile | 2 | 1 | hkfree.org z.s. |
| AS43413 | Other Business | 2 | 1 | NEW TELEKOM, spol. s r.o. |
| AS43614 | Other Business | 2 | 1 | Economia a.s. |
| AS43757 | Other Business | 2 | 1 | ICZ a.s. |
| AS44065 | ISP & Mobile | 2 | 1 | NETAIR, s.r.o. |
| AS44070 | ISP & Mobile | 2 | 1 | O2 Czech Republic, a.s. |
| AS44500 | ISP & Mobile | 2 | 1 | Vlasimnet s.r.o. |
| AS44712 | ISP & Mobile | 2 | 1 | eHAMnet, s.r.o. |
| AS47317 | Hosting Provider | 2 | 1 | Web4ce, s.r.o. |
| AS47868 | ISP & Mobile | 2 | 1 | AVONET, s.r.o. |
| AS48364 | ISP & Mobile | 2 | 1 | Radim Pytela trading as AC Vyskov |
| AS48661 | ISP & Mobile | 2 | 1 | AIRWAYNET, a.s. |
| AS49095 | ISP & Mobile | 2 | 1 | PRAHA12.com s.r.o. |
| AS49767 | ISP & Mobile | 2 | 1 | O2 Czech Republic, a.s. |
| AS50301 | Other Business | 2 | 1 | BrazdimNET s.r.o. |
| AS50695 | Other Business | 2 | 1 | VLTAVA LABE MEDIA a.s. |
| AS52092 | ISP & Mobile | 2 | 1 | Alf servis, s.r.o. |
| AS52130 | Other Business | 2 | 1 | Livesport s.r.o. |
| AS52176 | Other Business | 2 | 1 | TTC TELEKOMUNIKACE s.r.o. |
| AS56450 | ISP & Mobile | 2 | 1 | Alberon Letohrad s.r.o |
| AS56973 | Other Business | 2 | 1 | VITKOVICE IT SOLUTIONS a.s. |
| AS57077 | ISP & Mobile | 2 | 1 | AB-NET s.r.o. |
| AS57294 | ISP & Mobile | 2 | 1 | Internet Expert s.r.o. |
| AS57472 | Other Business | 2 | 1 | JR-NET, s.r.o. |
| AS57560 | ISP & Mobile | 2 | 1 | XLNET s.r.o. |
| AS59984 | ISP & Mobile | 2 | 1 | KLFREE NETWORKS, s.r.o. |
| AS61296 | Other Business | 2 | 1 | TechCom s.r.o. |
| AS62083 | Other Business | 2 | 1 | Fio banka, a.s. |
| AS196916 | Other Business | 2 | 0 | BusinessCom CZ spol. s r.o. |
| AS197694 | Government | 2 | 0 | Municipal Office of the City Prague |
| AS197846 | ISP & Mobile | 2 | 0 | Radovan Ochvat trading as SAO Computers |