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 |
|---|---|---|---|---|
| AS205345 | ISP & Mobile | 1 | 1 | HoralNET s.r.o. |
| AS205968 | ISP & Mobile | 1 | 1 | GeneralNet s.r.o. |
| AS206159 | Other Business | 1 | 1 | Fresh Data s.r.o. |
| AS206177 | ISP & Mobile | 1 | 1 | SitePark s.r.o. |
| AS20643 | ISP & Mobile | 1 | 1 | PilsFree servis, s.r.o. |
| AS206468 | ISP & Mobile | 1 | 1 | Treboradice.net z.s. |
| AS206784 | ISP & Mobile | 1 | 1 | Internet Praha Josefov s.r.o. |
| AS206951 | ISP & Mobile | 1 | 1 | BMB-Green s.r.o. |
| AS207015 | Other Business | 1 | 1 | Position s.r.o. |
| AS207231 | ISP & Mobile | 1 | 1 | FuturNET, s.r.o. |
| AS207451 | Other Business | 1 | 1 | Ales Hruska |
| AS207696 | Government | 1 | 1 | Dopravni podnik hl.m. Prahy, a.s. |
| AS208143 | Hosting Provider | 1 | 1 | mapnet IT services s.r.o. |
| AS208422 | ISP & Mobile | 1 | 1 | Infinity Telecom, s.r.o. |
| AS208659 | Other Business | 1 | 1 | INNC s.r.o. |
| AS208663 | Other Business | 1 | 1 | Martin Ph. D. Pustka |
| AS208712 | Other Business | 1 | 1 | CENDIS, s.p. |
| AS208906 | Other Business | 1 | 1 | SYNOT ICT Services, a.s. |
| AS209621 | ISP & Mobile | 1 | 1 | DOBNET, z.s. |
| AS209719 | Government | 1 | 1 | Ministerstvo Obrany |
| AS209947 | ISP & Mobile | 1 | 1 | M-wifi internet s.r.o. |
| AS210111 | Other Business | 1 | 1 | Netcraft Solutions s.r.o. |
| AS210367 | Other Business | 1 | 1 | Krajska zdravotni, a.s. |
| AS210498 | Government | 1 | 1 | Kraj Vysocina |
| AS211594 | Other Business | 1 | 1 | Kleissner Investments s.r.o. |
| AS211700 | Hosting Provider | 1 | 1 | Dexus Internet s.r.o. |
| AS212224 | Hosting Provider | 1 | 1 | Coolhousing s.r.o. |
| AS212362 | Hosting Provider | 1 | 1 | INERA.CZ s.r.o. |
| AS212859 | ISP & Mobile | 1 | 1 | KXCOMM s.r.o. |
| AS212876 | Government | 1 | 1 | Pardubicky Kraj |
| AS213359 | Other Business | 1 | 1 | Jan Korinek |
| AS213559 | Other Business | 1 | 1 | MyOffice, s.r.o. |
| AS214032 | Hosting Provider | 1 | 1 | BUDOVIT s.r.o |
| AS214945 | Government | 1 | 1 | Ministerstvo zahranicnich veci Ceske Republiky |
| AS216006 | Other Business | 1 | 1 | Vojtech Smrz |
| AS28892 | Government | 1 | 1 | Cesky urad zememericky a katastralni |
| AS29504 | ISP & Mobile | 1 | 1 | Freenet Liberec, z.s. |
| AS33943 | ISP & Mobile | 1 | 1 | Eri Internet s.r.o. |
| AS34487 | ISP & Mobile | 1 | 1 | SouthPrague.Net, z.s. |
| AS34819 | ISP & Mobile | 1 | 1 | H17 Networks, s.r.o. |
| AS39050 | Other Business | 1 | 1 | NET service solution, s.r.o. |
| AS41779 | ISP & Mobile | 1 | 1 | LajsiNET s.r.o. |
| AS43542 | ISP & Mobile | 1 | 1 | OptoNet Communication, spol. s.r.o. |
| AS44770 | Hosting Provider | 1 | 1 | Savvy s.r.o. |
| AS44984 | Hosting Provider | 1 | 1 | Fortion Networks, s.r.o. |
| AS47493 | ISP & Mobile | 1 | 1 | CEZNET s.r.o. |
| AS47727 | Other Business | 1 | 1 | Warnet.cz s.r.o. |
| AS47767 | Other Business | 1 | 1 | Regionalni centrum Olomouc s.r.o. |
| AS48451 | Other Business | 1 | 1 | Prazska energetika, a.s. |
| AS49244 | ISP & Mobile | 1 | 1 | Scancom s.r.o. |
| AS49262 | Other Business | 1 | 1 | Ataccama Software, s.r.o. |
| AS49573 | ISP & Mobile | 1 | 1 | JimmyNet s.r.o. |
| AS49890 | Other Business | 1 | 1 | ABLE agency, s.r.o. |
| AS50163 | ISP & Mobile | 1 | 1 | Altnet s.r.o. |
| AS50348 | Other Business | 1 | 1 | KVADOS, a.s. |
| AS50415 | Hosting Provider | 1 | 1 | Ahosting a.s. |
| AS50971 | ISP & Mobile | 1 | 1 | JHComp s.r.o. |
| AS51210 | Other Business | 1 | 1 | KRAXNET s.r.o. |
| AS51278 | Hosting Provider | 1 | 1 | Webglobe, s.r.o. |
| AS51382 | Other Business | 1 | 1 | Ing. Leos Janouch |
| AS51400 | ISP & Mobile | 1 | 1 | SPOJE.NET s.r.o. |
| AS51744 | ISP & Mobile | 1 | 1 | Non-profit organization Jablonka.cz |
| AS51800 | Other Business | 1 | 1 | FIBER Network s.r.o. |
| AS56360 | Other Business | 1 | 1 | TRINITY CZECH REPUBLIC, s.r.o. |
| AS56456 | ISP & Mobile | 1 | 1 | C2NET s.r.o. |
| AS56717 | Hosting Provider | 1 | 1 | OG Soft s.r.o. |
| AS57007 | ISP & Mobile | 1 | 1 | NITEX ISP s.r.o. |
| AS57081 | Other Business | 1 | 1 | Scarfbot Technologies, s.r.o. |
| AS57287 | ISP & Mobile | 1 | 1 | OtavaNet s.r.o. |
| AS57288 | ISP & Mobile | 1 | 1 | StaMPi, spol. s r.o. |
| AS58220 | Other Business | 1 | 1 | Tomas Budai |
| AS59925 | Hosting Provider | 1 | 1 | Seonet Multimedia s.r.o. |
| AS60086 | Other Business | 1 | 1 | Valvera s.r.o. |
| AS60218 | ISP & Mobile | 1 | 1 | IT8 - Informacni technologie s.r.o. |
| AS60584 | Other Business | 1 | 1 | Prime Studio s.r.o. |
| AS62298 | Other Business | 1 | 1 | Computer Systems Consulting s.r.o. |
| AS62405 | ISP & Mobile | 1 | 1 | Brouzdal, s.r.o. |
| AS8913 | Other Business | 1 | 1 | Mopos Communications A.S. |
| AS196684 | Other Business | 1 | 0 | VITALATIV, s.r.o. |
| AS196762 | Other Business | 1 | 0 | ALKOM Security, a.s. |
| AS196815 | ISP & Mobile | 1 | 0 | LAN servis s.r.o. |
| AS196849 | Other Business | 1 | 0 | MO BYRTUS s.r.o. |
| AS196873 | Hosting Provider | 1 | 0 | Netlancers s.r.o. |
| AS197083 | Other Business | 1 | 0 | K2 atmitec s.r.o. |
| AS197256 | Other Business | 1 | 0 | Rene Winkler |
| AS197542 | Other Business | 1 | 0 | Jan Saulich |
| AS197550 | Other Business | 1 | 0 | Internet4you.cz, spol. s r.o. |
| AS197565 | ISP & Mobile | 1 | 0 | NHK Solutions s.r.o. |
| AS197875 | Other Business | 1 | 0 | ORLEN Unipetrol RPA s.r.o. |
| AS198991 | Other Business | 1 | 0 | TV Nova sro |
| AS199059 | Other Business | 1 | 0 | Maurice Ward & Co., s.r.o. |
| AS199722 | Other Business | 1 | 0 | Sberbank CZ, a.s. v likvidaci |
| AS200646 | Other Business | 1 | 0 | BH securities, a.s. |
| AS201464 | ISP & Mobile | 1 | 0 | ISP Alliance a.s. |
| AS201533 | ISP & Mobile | 1 | 0 | United Networks SE |
| AS202073 | Other Business | 1 | 0 | Itego a.s. |
| AS202131 | ISP & Mobile | 1 | 0 | ISP Alliance a.s. |
| AS202556 | ISP & Mobile | 1 | 0 | Blond & Brown s.r.o. |
| AS202857 | Other Business | 1 | 0 | INIZIO Internet Media s.r.o. |
| AS204113 | Government | 1 | 0 | Security Information Service |