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 |
|---|---|---|---|---|
| AS204172 | Other Business | 1 | 0 | TTC TELEKOMUNIKACE s.r.o. |
| AS204567 | ISP & Mobile | 1 | 0 | PCKBnet s.r.o. |
| AS204570 | ISP & Mobile | 1 | 0 | KAZA.cz s.r.o. |
| AS204917 | Other Business | 1 | 0 | Mi-Ja Javornik s.r.o. |
| AS205026 | Hosting Provider | 1 | 0 | wvg solution s.r.o. |
| AS205064 | Hosting Provider | 1 | 0 | RockawayX Infra s.r.o. |
| AS205300 | Hosting Provider | 1 | 0 | Sunfox s.r.o. |
| AS205724 | ISP & Mobile | 1 | 0 | T.S.BOHEMIA a.s. |
| AS205947 | Other Business | 1 | 0 | NDC ICT Solutions s.r.o. |
| AS205982 | ISP & Mobile | 1 | 0 | Mraknet s.r.o. |
| AS206287 | ISP & Mobile | 1 | 0 | LysaFree, z.s. |
| AS206591 | Other Business | 1 | 0 | Alza.cz a.s. |
| AS206683 | Government | 1 | 0 | Moravskoslezske inovacni centrum Ostrava, a.s. |
| AS206908 | Other Business | 1 | 0 | FORTUNA GAME a.s. |
| AS207153 | ISP & Mobile | 1 | 0 | Stream-iT, s.r.o. |
| AS207354 | ISP & Mobile | 1 | 0 | Teleconnect CZ s.r.o. |
| AS208466 | Other Business | 1 | 0 | EG.D, s.r.o. |
| AS208805 | ISP & Mobile | 1 | 0 | INTERCONNECT s.r.o. |
| AS208847 | Other Business | 1 | 0 | Martin Fryzl |
| AS209834 | ISP & Mobile | 1 | 0 | KAZA.cz s.r.o. |
| AS210061 | Other Business | 1 | 0 | Ladislav Kepl |
| AS21045 | Other Business | 1 | 0 | K-net Technical International Group, s.r.o. |
| AS21082 | Hosting Provider | 1 | 0 | Reliable Communications s.r.o. |
| AS211137 | ISP & Mobile | 1 | 0 | ISP Services spol. s.r.o., |
| AS211334 | Other Business | 1 | 0 | MASTER IT Technologies, a.s. |
| AS211816 | Hosting Provider | 1 | 0 | ERON X s.r.o. |
| AS213387 | ISP & Mobile | 1 | 0 | TeSuNet s.r.o. |
| AS213558 | Other Business | 1 | 0 | Spinoco a.s. |
| AS214224 | Other Business | 1 | 0 | CeskaSit.net Networks s.r.o. |
| AS214703 | ISP & Mobile | 1 | 0 | Core4Net, s.r.o. |
| AS214886 | Hosting Provider | 1 | 0 | Green hosting s.r.o. |
| AS215260 | Other Business | 1 | 0 | Emerald Group s.r.o. |
| AS215354 | Other Business | 1 | 0 | ENTRANOVA IT s.r.o. |
| AS215676 | Hosting Provider | 1 | 0 | GoodHost s.r.o. |
| AS215718 | Other Business | 1 | 0 | IBA Group a.s. |
| AS215806 | Other Business | 1 | 0 | Albert Ceska republika, s.r.o. |
| AS25321 | Other Business | 1 | 0 | Brink's Cash Solutions (CZ), a.s. |
| AS31461 | Other Business | 1 | 0 | Moravia IT s.r.o. |
| AS3161 | ISP & Mobile | 1 | 0 | IT PROFI s.r.o. |
| AS39453 | Government | 1 | 0 | Ustav zdravotnickych informaci a statistiky Ceske republiky |
| AS39455 | Other Business | 1 | 0 | Jiri Tlapak |
| AS41359 | Other Business | 1 | 0 | Telefonzentrale s.r.o. |
| AS43523 | Other Business | 1 | 0 | A.T.S. INTERNATIONAL s.r.o |
| AS44104 | ISP & Mobile | 1 | 0 | LCJ Invest, a.s. |
| AS44430 | ISP & Mobile | 1 | 0 | MaRcom-Eko s.r.o. |
| AS47681 | ISP & Mobile | 1 | 0 | O2 Czech Republic, a.s. |
| AS47949 | Other Business | 1 | 0 | gsnet.cz s.r.o. |
| AS48405 | Other Business | 1 | 0 | CGI IT Czech Republic s.r.o. |
| AS48889 | Hosting Provider | 1 | 0 | GLOBECORP a.s. |
| AS49142 | Other Business | 1 | 0 | HBO Europe s.r.o. |
| AS50097 | Other Business | 1 | 0 | IPVOIP s.r.o. |
| AS50975 | Other Business | 1 | 0 | KYOCERA AVX Components s.r.o. |
| AS51025 | Hosting Provider | 1 | 0 | VSHosting s.r.o. |
| AS51521 | ISP & Mobile | 1 | 0 | Resident Control Telco s.r.o. |
| AS51524 | Other Business | 1 | 0 | Ales Tesacek |
| AS51727 | Other Business | 1 | 0 | Doosan Skoda Power s.r.o |
| AS52084 | ISP & Mobile | 1 | 0 | ISP Alliance a.s. |
| AS56353 | Other Business | 1 | 0 | First Line Software s.r.o. |
| AS56427 | Other Business | 1 | 0 | Michal Hradil |
| AS56827 | ISP & Mobile | 1 | 0 | mirnet s.r.o. |
| AS56891 | Government | 1 | 0 | Narodni rozvojova banka, a.s. |
| AS57069 | Other Business | 1 | 0 | Dempsey and Clark s.r.o. |
| AS57904 | ISP & Mobile | 1 | 0 | Vevynet s.r.o. |
| AS59664 | Other Business | 1 | 0 | Opton s.r.o. |
| AS60529 | Other Business | 1 | 0 | Miroslav Klement |
| AS60724 | Other Business | 1 | 0 | Sicuro Services s. r. o. |
| AS61425 | Hosting Provider | 1 | 0 | AdminIT, s. r. o. |
| AS8646 | Hosting Provider | 1 | 0 | cloudinfrastack, s.r.o. |
| AS204150 | Other Business | 0 | 18 | David Zakoucky |
| AS214757 | Other Business | 0 | 14 | Jakub Krsa |
| AS210951 | Other Business | 0 | 13 | Josef Miegl |
| AS216339 | Other Business | 0 | 3 | Mald Entertainment Studio, s.r.o. |
| AS207272 | Other Business | 0 | 2 | Vojtech Linhart |
| AS200985 | ISP & Mobile | 0 | 1 | TNtech, s.r.o. |
| AS202733 | ISP & Mobile | 0 | 1 | OK COMP s.r.o. |
| AS204405 | ISP & Mobile | 0 | 1 | Durnet.cz sro |
| AS206321 | Other Business | 0 | 1 | STARTECH spol. s r.o. |
| AS207575 | Other Business | 0 | 1 | Zahradnicke centrum Brabec, s.r.o. |
| AS207576 | Other Business | 0 | 1 | KOVO - PLAZMA s.r.o. |
| AS207583 | Other Business | 0 | 1 | Technologicke centrum a.s. |
| AS208790 | Other Business | 0 | 1 | Stepan Duda |
| AS208816 | Hosting Provider | 0 | 1 | It services company s.r.o. |
| AS209431 | Other Business | 0 | 1 | PharoCom s.r.o. |
| AS210401 | Other Business | 0 | 1 | Batlify Internet s.r.o. |
| AS210436 | Other Business | 0 | 1 | IT Globe s.r.o. |
| AS210984 | Hosting Provider | 0 | 1 | Zerops s.r.o. |
| AS211445 | Government | 0 | 1 | Mesto Kralupy nad Vltavou |
| AS213813 | Other Business | 0 | 1 | MaSON z. s. |
| AS214952 | Other Business | 0 | 1 | mjanik.net s.r.o. |
| AS215582 | Other Business | 0 | 1 | Jan Kalista |
| AS215777 | Other Business | 0 | 1 | Jiri Cincura |
| AS215846 | Hosting Provider | 0 | 1 | PRO-ZETA a.s. |
| AS216021 | Other Business | 0 | 1 | Stefan Johannes Mayer |
| AS46553 | Other Business | 0 | 1 | AS46553 s.r.o. |
| AS54444 | Other Business | 0 | 1 | AS54444 s.r.o. |
| AS59747 | Other Business | 0 | 1 | NIX.CZ z.s.p.o. |
| AS60275 | ISP & Mobile | 0 | 1 | RVTech s.r.o. |
| AS8882 | Other Business | 0 | 1 | AS8882 s.r.o. |