Explore all 714 Autonomous System Numbers (ASNs) in Czechia along with the organizations that manage them. View routing details, peers, upstreams, downstreams, and network connections for each ASN. Access this information quickly using the Country Lookup Tool.
Czechia
| AS Number | Description | IPv4 Routes | IPv6 Routes |
|---|---|---|---|
| AS207451 | ASN of PEARHOST.cz, CZ | 1 | 1 |
| AS209680 | JetBrains, s. r. o., CZ | 0 | 0 |
| AS35592 | Coolhousing s.r.o., CZ | 31 | 4 |
| AS205910 | McKinsey & Company Inc., CZ | 3 | 0 |
| AS60266 | EmbedIT s.r.o., CZ | 2 | 5 |
| AS8747 | Quantcom, a.s., CZ | 0 | 0 |
| AS16246 | NEJ.cz s.r.o, CZ | 13 | 2 |
| AS51968 | NEOS v.o.s., CZ | 2 | 0 |
| AS41456 | STARNET, s.r.o., CZ | 0 | 0 |
| AS206414 | TechCenter s.r.o., CZ | 4 | 0 |
| AS50698 | TETA s.r.o., CZ | 9 | 3 |
| AS213395 | NetX Networks a.s., CZ | 0 | 0 |
| AS201761 | ISP Alliance a.s., CZ | 0 | 0 |
| AS207198 | Kabelova televize Koprivnice, s.r.o., CZ | 3 | 1 |
| AS25234 | ACTIVE 24, s.r.o., CZ | 5 | 3 |
| AS202237 | Wic Net, s.r.o., CZ | 1 | 1 |
| AS21241 | Global Payments Europe, s.r.o., CZ | 3 | 0 |
| AS56891 | Narodni rozvojova banka, a.s., CZ | 1 | 0 |
| AS197393 | ISP Alliance a.s., CZ | 2 | 1 |
| AS57496 | Praha1.net z.s.p.o., CZ | 1 | 2 |
| AS198031 | Trustica s.r.o., CZ | 1 | 1 |
| AS21142 | T Mobile Czech Republic a.s., CZ | 0 | 0 |
| AS198564 | STARNET, s.r.o., CZ | 0 | 0 |
| AS211193 | Jiri Tlapak, CZ | 0 | 0 |
| AS197550 | Internet4you.cz, spol. s r.o., CZ | 1 | 0 |
| AS51331 | SychrovNET s.r.o, CZ | 7 | 3 |
| AS204064 | CEZNET s.r.o., CZ | 5 | 1 |
| AS15685 | CASABLANCA INT a.s., CZ | 59 | 1 |
| AS35096 | Alef Nula a.s., CZ | 4 | 1 |
| AS50825 | UVT Internet s.r.o., CZ | 9 | 1 |
| AS50975 | KYOCERA AVX Components s.r.o., CZ | 1 | 0 |
| AS206587 | Daktela s.r.o., CZ | 5 | 0 |
| AS211693 | NolimitCloud s.r.o, CZ | 3 | 1 |
| AS207887 | Fio banka, a.s., CZ | 0 | 0 |
| AS211248 | Artemis NET s.r.o., CZ | 3 | 1 |
| AS43895 | Zentiva Group, a.s, CZ | 0 | 0 |
| AS196873 | Netlancers s.r.o., CZ | 1 | 0 |
| AS210498 | Kraj Vysocina, CZ | 1 | 1 |
| AS206784 | Internet Praha Josefov s.r.o., CZ | 1 | 1 |
| AS206785 | Magistrat mesta Brna, CZ | 2 | 1 |
| AS52154 | mjanik.net s.r.o., CZ | 8 | 0 |
| AS198519 | Raiffeisenbank a.s., CZ | 2 | 0 |
| AS59871 | Heureka Group a.s., CZ | 1 | 5 |
| AS204570 | KAZA.cz s.r.o., CZ | 1 | 0 |
| AS210325 | ISP Alliance a.s., CZ | 0 | 0 |
| AS29583 | Spinoco a.s., CZ | 9 | 0 |
| AS57279 | Sauron CZ s.r.o., CZ | 3 | 1 |
| AS13199 | Jaroslav Doubrava, CZ | 1 | 1 |
| AS59479 | GEMNET s.r.o., CZ | 3 | 1 |
| AS60724 | Sicuro Services s. r. o., CZ | 1 | 0 |
| AS57294 | Internet Expert s.r.o., CZ | 2 | 1 |
| AS44430 | MaRcom Eko s.r.o., CZ | 1 | 0 |
| AS57472 | JR NET, s.r.o., CZ | 2 | 1 |
| AS203328 | PVfree.net, z. s., CZ | 1 | 1 |
| AS2605 | CESNET z.s.p.o., CZ | 0 | 0 |
| AS48131 | IXOXI s.r.o., CZ | 2 | 2 |
| AS206548 | ZCOM.cz s.r.o, CZ | 5 | 1 |
| AS206613 | Tipsport.net a.s., CZ | 3 | 1 |
| AS200646 | BH securities, a.s., CZ | 1 | 0 |
| AS210061 | Ladislav Kepl, CZ | 1 | 0 |
| AS200874 | Liberecky kraj, CZ | 1 | 1 |
| AS54444 | AS54444 s.r.o., CZ | 0 | 1 |
| AS212074 | Ondrej Filip, CZ | 0 | 0 |
| AS202895 | TFnet s.r.o., CZ | 10 | 1 |
| AS39736 | ICT Support, s.r.o., CZ | 3 | 1 |
| AS206270 | ISP Alliance a.s., CZ | 0 | 0 |
| AS41509 | Patria Finance, a.s., CZ | 0 | 0 |
| AS197046 | FIXNET s.r.o., CZ | 2 | 1 |
| AS13036 | T Mobile Czech Republic a.s., CZ | 34 | 3 |
| AS204860 | NetX Networks a.s., CZ | 7 | 9 |
| AS25036 | O2 Czech Republic, a.s., CZ | 0 | 0 |
| AS25238 | MONETA Money Bank, a.s., CZ | 4 | 1 |
| AS22298 | Jan Vaclav, CZ | 0 | 0 |
| AS51025 | VSHosting s.r.o., CZ | 1 | 0 |
| AS204183 | Omnivery s.r.o., CZ | 1 | 0 |
| AS48405 | CGI IT Czech Republic s.r.o., CZ | 1 | 0 |
| AS205968 | GeneralNet s.r.o., CZ | 1 | 1 |
| AS214757 | Jakub Krsa, CZ | 1 | 16 |
| AS39791 | Telco Pro Services, a. s., CZ | 3 | 2 |
| AS50338 | GamerHost s.r.o., CZ | 2 | 1 |
| AS208143 | mapnet IT services s.r.o., CZ | 1 | 3 |
| AS215846 | PRO ZETA a.s., CZ | 0 | 1 |
| AS61425 | AdminIT, s. r. o., CZ | 1 | 0 |
| AS9080 | Ipex A.S, CZ | 5 | 1 |
| AS203342 | ISP Alliance a.s., CZ | 0 | 0 |
| AS197029 | LAM plus s.r.o., CZ | 2 | 1 |
| AS35136 | Global Tech Distribution s.r.o., CZ | 0 | 0 |
| AS198977 | UnArtel s.r.o., CZ | 2 | 1 |
| AS41046 | O2 Czech Republic, a.s., CZ | 8 | 2 |
| AS198143 | Ceska Posta s.p., CZ | 3 | 1 |
| AS199405 | Oslavany.NET, spolek, CZ | 1 | 1 |
| AS49244 | Scancom s.r.o., CZ | 1 | 1 |
| AS206420 | KABEL servis Praha spol. s r.o., CZ | 2 | 2 |
| AS34070 | BACKER COMPUTER s.r.o., CZ | 0 | 0 |
| AS25248 | RADIOKOMUNIKACE a.s., CZ | 5 | 2 |
| AS212138 | Technicke site Brno, akciova spolecnost, CZ | 2 | 0 |
| AS12984 | PilsFree, z. s., CZ | 1 | 1 |
| AS57069 | Dempsey and Clark s.r.o., CZ | 1 | 0 |
| AS201730 | Cloud4com s.r.o., CZ | 26 | 1 |
| AS51382 | Ing. Leos Janouch, CZ | 1 | 1 |
| AS51210 | KRAXNET s.r.o., CZ | 1 | 1 |
| AS60592 | Gransy s.r.o., CZ | 17 | 3 |
| AS206429 | CORSAT s.r.o, CZ | 2 | 1 |
| AS51744 | Non profit organization Jablonka.cz, CZ | 1 | 1 |
| AS56456 | C2NET s.r.o., CZ | 1 | 1 |
| AS62405 | Brouzdal, s.r.o., CZ | 1 | 1 |
| AS56717 | OG Soft s.r.o., CZ | 1 | 1 |
| AS50415 | Ahosting a.s., CZ | 1 | 1 |
| AS215602 | sikmo s.r.o., CZ | 2 | 0 |
| AS196762 | ALKOM Security, a.s., CZ | 1 | 0 |
| AS44712 | eHAMnet, s.r.o., CZ | 2 | 1 |
| AS204165 | Cznet s.r.o., CZ | 2 | 2 |
| AS58220 | Tomas Budai, CZ | 1 | 1 |
| AS200985 | TNtech, s.r.o., CZ | 0 | 1 |
| AS61296 | TechCom s.r.o., CZ | 2 | 1 |
| AS9053 | VSHosting s.r.o., CZ | 1 | 3 |
| AS208060 | Dr. Max BDC, s.r.o., CZ | 3 | 1 |
| AS40964 | ASTELNET s.r.o., CZ | 4 | 0 |
| AS2571 | DHL Information Services Europe s.r.o, CZ | 55 | 45 |
| AS202643 | NetSERV, s.r.o., CZ | 1 | 1 |
| AS50398 | Fast Communication, s.r.o., CZ | 7 | 1 |
| AS197412 | Jiri Tlapak, CZ | 3 | 0 |
| AS30764 | PODA a.s., CZ | 19 | 2 |
| AS216339 | Mald Entertainment Studio, s.r.o., CZ | 0 | 3 |
| AS207700 | Reliable Communications s.r.o., CZ | 27 | 0 |
| AS47131 | PH, spol. s r. o., CZ | 3 | 0 |
| AS25192 | CZ.NIC, z.s.p.o., CZ | 7 | 6 |
| AS49573 | JimmyNet s.r.o., CZ | 1 | 1 |
| AS205002 | CUBESOL, s.r.o., CZ | 1 | 1 |
| AS205535 | Windyghoul s.r.o., CZ | 3 | 3 |
| AS197013 | Sprintel s.r.o., CZ | 5 | 1 |
| AS44424 | Allegro Retail a.s., CZ | 4 | 0 |
| AS207187 | TKR Jasek, s.r.o., CZ | 6 | 3 |
| AS56566 | SATT a.s., CZ | 9 | 1 |
| AS59959 | SferiaNET.cz s.r.o., CZ | 4 | 1 |
| AS201163 | Komercni banka, a.s., CZ | 3 | 0 |
| AS198586 | HostNow, s.r.o., CZ | 1 | 1 |
| AS50163 | Altnet s.r.o., CZ | 1 | 1 |
| AS202719 | Pranet s.r.o., CZ | 1 | 1 |
| AS202857 | INIZIO Internet Media s.r.o., CZ | 1 | 0 |
| AS49095 | PRAHA12.com s.r.o., CZ | 2 | 1 |
| AS2118 | Reliable Communications s.r.o., CZ | 15 | 0 |
| AS212325 | ADC Systems s.r.o., CZ | 0 | 0 |
| AS31349 | a net Liberec s.r.o., CZ | 2 | 1 |
| AS47834 | SOFTEX NCP, s.r.o., CZ | 0 | 0 |
| AS43541 | VSHosting s.r.o., CZ | 19 | 7 |
| AS211334 | MASTER IT Technologies, a.s., CZ | 1 | 0 |
| AS56827 | mirnet s.r.o., CZ | 1 | 0 |
| AS34475 | Agrostroj Pelhrimov, a.s., CZ | 4 | 0 |
| AS12570 | O2 Czech Republic, a.s., CZ | 11 | 2 |
| AS12767 | T Mobile Czech Republic a.s., CZ | 0 | 0 |
| AS28892 | Cesky urad zememericky a katastralni, CZ | 1 | 1 |
| AS51661 | UVT Internet s.r.o., CZ | 4 | 0 |
| AS202556 | Blond & Brown s.r.o., CZ | 1 | 0 |
| AS21430 | WIA spol. s.r.o., CZ | 65 | 5 |
| AS29134 | Webglobe, s.r.o., CZ | 11 | 5 |
| AS198668 | Tlapnet s.r.o., CZ | 0 | 0 |
| AS49767 | O2 Czech Republic, a.s., CZ | 2 | 1 |
| AS207272 | Vojtech Linhart, CZ | 0 | 2 |
| AS44065 | NETAIR, s.r.o., CZ | 2 | 1 |
| AS209135 | Flowmon Networks a.s., CZ | 3 | 1 |
| AS2819 | T Mobile Czech Republic a.s., CZ | 0 | 0 |
| AS197694 | Municipal Office of the City Prague, CZ | 3 | 0 |
| AS201049 | UNT Cernovice NET s.r.o., CZ | 0 | 0 |
| AS8882 | AS8882 s.r.o., CZ | 0 | 1 |
| AS62298 | Computer Systems Consulting s.r.o., CZ | 1 | 1 |
| AS51524 | Ales Tesacek, CZ | 1 | 0 |
| AS41453 | SITEL spol. s r.o., CZ | 2 | 2 |
| AS20884 | O2 Czech Republic, a.s., CZ | 0 | 0 |
| AS210984 | Zerops s.r.o., CZ | 1 | 1 |
| AS201625 | United Networks SE, CZ | 1 | 1 |
| AS31461 | Moravia IT s.r.o., CZ | 1 | 0 |
| AS205004 | HCNET s.r.o., CZ | 0 | 0 |
| AS61195 | Peering.cz s.r.o., CZ | 0 | 0 |
| AS48364 | Pe3ny Net s.r.o., CZ | 2 | 1 |
| AS209268 | HODL s.r.o., CZ | 0 | 0 |
| AS201348 | SIZEK Networks s.r.o, CZ | 0 | 0 |
| AS210915 | Dominik Pastorek, CZ | 2 | 3 |
| AS51400 | SPOJE.NET s.r.o., CZ | 1 | 1 |
| AS215308 | Spolek PASKOV.net, CZ | 2 | 1 |
| AS197083 | K2 atmitec s.r.o., CZ | 1 | 0 |
| AS62102 | Prazska plynarenska, a.s., CZ | 3 | 1 |
| AS199298 | Jan Stetina, CZ | 1 | 1 |
| AS41711 | FreeTel, s.r.o., CZ | 0 | 0 |
| AS209671 | Qrator Labs CZ s.r.o., CZ | 4 | 2 |
| AS57825 | MoravanyNET s.r.o., CZ | 3 | 1 |
| AS200114 | PODA a.s., CZ | 3 | 0 |
| AS209692 | FOXCONN CZ s.r.o., CZ | 0 | 0 |
| AS216241 | Vysoka skola banska Technicka univerzita Ostrava, CZ | 0 | 0 |
| AS47727 | Warnet.cz s.r.o., CZ | 1 | 1 |
| AS208093 | Moravskoslezsky kraj, CZ | 5 | 0 |
| AS197206 | BusinessCom CZ spol. s r.o., CZ | 8 | 1 |
| AS47269 | Core4Net, s.r.o., CZ | 5 | 1 |
| AS33883 | TRIOPTIMUM s.r.o., CZ | 3 | 1 |
| AS6881 | NIX.CZ z.s.p.o., CZ | 5 | 6 |
| AS202618 | Rychly drat, s.r.o., CZ | 2 | 1 |
| AS35613 | FASTER CZ spol. s r.o., CZ | 5 | 2 |
| AS212315 | Frantisek Toman, CZ | 3 | 1 |
| AS208845 | Telefonzentrale s.r.o., CZ | 0 | 0 |
| AS43866 | Altron a.s., CZ | 2 | 0 |
| AS215704 | NGN CZ s.r.o., CZ | 6 | 1 |
| AS207231 | FuturNET, s.r.o., CZ | 1 | 1 |
| AS57728 | CEZNET s.r.o., CZ | 5 | 3 |
| AS209055 | W.A.G. PAYMENT SOLUTIONS, A.S., CZ | 4 | 1 |
| AS50980 | cloudinfrastack, s.r.o., CZ | 2 | 0 |
| AS49580 | Monet , a.s., CZ | 2 | 0 |
| AS209947 | M wifi internet s.r.o., CZ | 1 | 1 |
| AS197879 | HelaPC s.r.o., CZ | 3 | 2 |
| AS209621 | DOBNET, z.s., CZ | 1 | 1 |
| AS44672 | Cloud4com s.r.o., CZ | 0 | 0 |
| AS51278 | Webglobe, s.r.o., CZ | 1 | 1 |
| AS51248 | Host Telecom.com s.r.o., CZ | 25 | 5 |
| AS202073 | Itego a.s., CZ | 1 | 0 |
| AS206951 | BMB Green s.r.o., CZ | 1 | 1 |
| AS47200 | NIX.CZ z.s.p.o., CZ | 0 | 0 |
| AS208387 | Blond & Brown s.r.o., CZ | 0 | 0 |
| AS215588 | Notino s.r.o., CZ | 2 | 2 |
| AS2852 | CESNET z.s.p.o., CZ | 26 | 1 |
| AS196684 | VITALATIV, s.r.o., CZ | 1 | 0 |
| AS48602 | Connect plus s.r.o., CZ | 4 | 1 |
| AS200635 | pragmatel s.r.o., CZ | 1 | 1 |
| AS199059 | Maurice Ward & Co., s.r.o., CZ | 1 | 0 |
| AS211816 | ERON X s.r.o., CZ | 1 | 0 |
| AS212859 | KXCOMM s.r.o., CZ | 1 | 1 |
| AS51424 | Jiri Sperl, CZ | 6 | 0 |
| AS210111 | Netcraft Solutions s.r.o., CZ | 1 | 1 |
| AS214952 | mjanik.net s.r.o., CZ | 0 | 1 |
| AS211774 | ign.cz internet, s.r.o., CZ | 2 | 1 |
| AS203550 | i2net cz s.r.o., CZ | 1 | 1 |
| AS49013 | Fusion Media, s.r.o., CZ | 2 | 0 |
| AS203376 | Mailkit s.r.o., CZ | 3 | 3 |
| AS210951 | Josef Miegl, CZ | 0 | 13 |
| AS198627 | Shoptet, a.s., CZ | 2 | 1 |
| AS206468 | Treboradice.net z.s., CZ | 1 | 1 |
| AS198248 | Richard Filip, CZ | 2 | 1 |
| AS197565 | NHK Solutions s.r.o., CZ | 1 | 0 |
| AS200068 | Stepan Pechman, CZ | 0 | 0 |
| AS57188 | ORKA systems, s.r.o., CZ | 3 | 1 |
| AS35236 | UVT Internet s.r.o., CZ | 12 | 8 |
| AS12344 | CZECH IT CLUSTER, druzstvo, CZ | 1 | 1 |
| AS196952 | BEZVANET s.r.o., CZ | 2 | 2 |
| AS20609 | KAZA.cz s.r.o., CZ | 2 | 1 |
| AS208847 | Martin Fryzl, CZ | 1 | 0 |
| AS201559 | United Networks SE, CZ | 1 | 1 |
| AS43507 | RETE internet, s.r.o., CZ | 2 | 0 |
| AS43757 | ICZ a.s., CZ | 2 | 1 |
| AS51727 | Doosan Skoda Power s.r.o, CZ | 1 | 0 |
| AS56360 | TRINITY CZECH REPUBLIC, s.r.o., CZ | 1 | 1 |
| AS25093 | Ceska sporitelna a.s., CZ | 2 | 0 |
| AS39896 | FIBER TELECOM s.r.o., CZ | 0 | 0 |
| AS6740 | CEZNET s.r.o., CZ | 4 | 0 |
| AS3234 | Parliament of the Czech Republic, CZ | 0 | 0 |
| AS207576 | KOVO PLAZMA s.r.o., CZ | 0 | 1 |
| AS197939 | It services company s.r.o., CZ | 0 | 0 |
| AS208422 | Infinity Telecom, s.r.o., CZ | 1 | 1 |
| AS48451 | Prazska energetika, a.s., CZ | 1 | 1 |
| AS204666 | Jiri Tlapak, CZ | 38 | 10 |
| AS201447 | The Czech National Bank, CZ | 4 | 0 |
| AS52084 | ISP Alliance a.s., CZ | 1 | 0 |
| AS219423 | Nial Company s.r.o., CZ | 0 | 0 |
| AS204543 | Filip Hruska, CZ | 0 | 0 |
| AS62083 | Fio banka, a.s., CZ | 2 | 1 |
| AS212975 | TeamCity s.r.o., CZ | 3 | 1 |
| AS24806 | INTERNET CZ, a.s., CZ | 14 | 1 |
| AS208790 | Stepan Duda, CZ | 0 | 1 |
| AS28905 | OMEGA plus Chrudim s.r.o., CZ | 3 | 0 |
| AS33943 | Quadruple a.s., CZ | 1 | 1 |
| AS60143 | Brno University of Technology, CZ | 0 | 0 |
| AS207153 | Stream iT, s.r.o., CZ | 1 | 0 |
| AS196849 | MO BYRTUS s.r.o., CZ | 1 | 0 |
| AS215353 | Josef Hrabe, CZ | 2 | 0 |
| AS15425 | PODA a.s., CZ | 8 | 1 |
| AS16019 | Vodafone Czech Republic a.s., CZ | 90 | 17 |
| AS56821 | KnVnet services s.r.o., CZ | 1 | 2 |
| AS202774 | ISP Alliance a.s., CZ | 1 | 1 |
| AS50651 | HBO Europe s.r.o., CZ | 0 | 0 |
| AS21045 | K net Technical International Group, s.r.o., CZ | 1 | 0 |
| AS34049 | wosa.cz, CZ | 4 | 1 |
| AS200474 | CRFreeNet, z.s., CZ | 1 | 1 |
| AS47868 | AVONET, s.r.o., CZ | 2 | 1 |
| AS51420 | cyrilek.net z.s., CZ | 18 | 0 |
| AS202657 | Pavel Jochim, CZ | 1 | 1 |
| AS56624 | Rtyne.net s.r.o., CZ | 2 | 0 |
| AS204113 | Security Information Service, CZ | 1 | 0 |
| AS200717 | ISP Alliance a.s., CZ | 0 | 0 |
| AS199600 | Virtis s.r.o., CZ | 1 | 1 |
| AS34911 | ELDATA prazska s.r.o., CZ | 5 | 0 |
| AS215260 | Emerald Group s.r.o., CZ | 1 | 0 |
| AS204372 | PPF banka a.s., CZ | 2 | 0 |
| AS60529 | Miroslav Klement, CZ | 1 | 0 |
| AS213874 | NSIX Route Servers, CZ | 0 | 0 |
| AS51449 | Kabelova televize Usti nad Orlici, spol. s r. o., CZ | 4 | 1 |
| AS210712 | ISP Alliance a.s., CZ | 13 | 1 |
| AS199490 | INTERCONNECT s.r.o., CZ | 1 | 1 |
| AS15512 | Vodafone Czech Republic a.s., CZ | 0 | 0 |
| AS49025 | PRO ZETA a.s., CZ | 7 | 1 |
| AS197256 | Rene Winkler, CZ | 9 | 0 |
| AS209795 | SPC net s.r.o., CZ | 2 | 1 |
| AS198813 | SychrovNET s.r.o, CZ | 3 | 1 |
| AS207575 | Zahradnicke centrum Brabec, s.r.o., CZ | 0 | 1 |
| AS207434 | Generalni reditelstvi cel, CZ | 2 | 1 |
| AS213927 | FIBER CONNECTIONS s.r.o., CZ | 0 | 0 |
| AS215354 | ENTRANOVA IT s.r.o., CZ | 1 | 0 |
| AS29086 | GiTy, a.s., CZ | 5 | 1 |
| AS207354 | Teleconnect CZ s.r.o., CZ | 1 | 0 |
| AS34596 | HVfree.net servis. s.r.o., CZ | 3 | 1 |
| AS34040 | TTNET s.r.o., CZ | 4 | 1 |
| AS50784 | Intraweb servis s.r.o., CZ | 5 | 1 |
| AS205947 | NDC ICT Solutions s.r.o., CZ | 1 | 0 |
| AS35046 | OMEGA plus Chrudim s.r.o., CZ | 3 | 2 |
| AS209810 | Netcore services s.r.o., CZ | 6 | 1 |
| AS200828 | TERMS a.s., CZ | 1 | 1 |
| AS47114 | SychrovNET s.r.o, CZ | 4 | 2 |
| AS24641 | FASTER CZ spol. s r.o., CZ | 10 | 2 |
| AS52176 | TTC TELEKOMUNIKACE s.r.o., CZ | 2 | 1 |
| AS211274 | Quadruple a.s., CZ | 1 | 4 |
| AS206321 | STARTECH spol. s r.o., CZ | 0 | 1 |
| AS201533 | United Networks SE, CZ | 1 | 0 |
| AS208950 | Ezpada s.r.o, CZ | 3 | 0 |
| AS47949 | gsnet.cz s.r.o., CZ | 1 | 0 |
| AS196653 | BEST NET s.r.o., CZ | 2 | 3 |
| AS44546 | ALFA TELECOM s.r.o., CZ | 14 | 0 |
| AS219015 | Mae Vielle, CZ | 0 | 2 |
| AS204007 | Kleissner Investments s.r.o., CZ | 3 | 1 |
| AS203299 | NetX Networks a.s., CZ | 1 | 1 |
| AS42422 | SecurityNet.cz s.r.o., CZ | 13 | 2 |
| AS58239 | hanspaul city.net s.r.o., CZ | 4 | 1 |
| AS197376 | Cloud4com s.r.o., CZ | 0 | 0 |
| AS206712 | FELDSAM s.r.o., CZ | 3 | 3 |
| AS207583 | Technologicke centrum a.s., CZ | 0 | 1 |
| AS51521 | Resident Control Telco s.r.o., CZ | 1 | 0 |
| AS201457 | Kooperativa pojistovna, a.s., Vienna Insurance Group, CZ | 0 | 0 |
| AS216021 | Stefan Johannes Mayer, CZ | 0 | 1 |
| AS198494 | PREGIS, a.s, CZ | 2 | 2 |
| AS203165 | Statni pokladna Centrum sdilenych sluzeb, s.p., CZ | 3 | 3 |
| AS204886 | Metropolitni sit Humpolec spol. s r.o., CZ | 1 | 1 |
| AS33877 | Druzstvo OFX, CZ | 0 | 0 |
| AS201007 | Tesco Stores CR a.s., CZ | 0 | 0 |
| AS198814 | ALPHA StylSoft, s.r.o., CZ | 1 | 1 |
| AS49890 | ABLE agency, s.r.o., CZ | 1 | 1 |
| AS59664 | Opton s.r.o., CZ | 1 | 0 |
| AS197875 | ORLEN Unipetrol RPA s.r.o., CZ | 1 | 0 |
| AS201116 | Vybezek.NET s.r.o., CZ | 1 | 1 |
| AS202874 | Zlinsky Kraj, CZ | 1 | 1 |
| AS204668 | ASTANA Technologies s.r.o., CZ | 1 | 1 |
| AS203018 | PAMICO CZECH, s.r.o., CZ | 2 | 1 |
| AS209369 | The Cloud Provider s.r.o., CZ | 5 | 2 |
| AS201608 | HovNet SERVIS s.r.o., CZ | 3 | 1 |
| AS197846 | Radovan Ochvat trading as SAO Computers, CZ | 2 | 0 |
| AS199722 | Sberbank CZ, a.s. v likvidaci, CZ | 1 | 0 |
| AS201654 | CEZNET s.r.o., CZ | 2 | 1 |
| AS201476 | ISP Alliance a.s., CZ | 13 | 2 |
| AS198284 | Mesto Velka Bystrice, CZ | 2 | 1 |
| AS21082 | Reliable Communications s.r.o., CZ | 2 | 0 |
| AS208329 | Ceska televize, CZ | 2 | 0 |
| AS207850 | HovNet SERVIS s.r.o., CZ | 2 | 0 |
| AS50491 | T Mobile Czech Republic a.s., CZ | 0 | 0 |
| AS216006 | Vojtech Smrz, CZ | 5 | 2 |
| AS199630 | Municipal Office of the City Prague, CZ | 0 | 0 |
| AS204080 | Apelby Solutions s.r.o., CZ | 5 | 0 |
| AS197566 | Livady s.r.o., CZ | 0 | 0 |
| AS15380 | Air Navigation Services of the Czech Republic, state enterprise, CZ | 1 | 1 |
| AS8913 | Mopos Communications A.S., CZ | 1 | 1 |
| AS198167 | AppToCloud servers, vps, CZ | 9 | 1 |
| AS203411 | FORTUNA GAME a.s., CZ | 4 | 0 |
| AS61169 | O2 Czech Republic, a.s., CZ | 0 | 0 |
| AS43500 | HBO Europe s.r.o., CZ | 8 | 8 |
| AS42000 | Futruy s.r.o., CZ | 5 | 1 |
| AS8646 | cloudinfrastack, s.r.o., CZ | 1 | 0 |
| AS47749 | ORIFLAME SOFTWARE s.r.o., CZ | 4 | 1 |
| AS197895 | ONYX engineering, spol. s r.o., CZ | 1 | 1 |
| AS208466 | EG.D, s.r.o., CZ | 1 | 0 |
| AS39817 | OvaNet, a.s., CZ | 2 | 1 |
| AS50695 | VLTAVA LABE MEDIA a.s., CZ | 2 | 1 |
| AS59984 | KLFREE NETWORKS, s.r.o., CZ | 2 | 1 |
| AS198725 | Ultimum Technologies a.s., CZ | 2 | 1 |
| AS205982 | Mraknet s.r.o., CZ | 1 | 0 |
| AS199604 | OLOMOUCKY KRAJ, CZ | 1 | 1 |
| AS211085 | mapnet IT services s.r.o., CZ | 1 | 2 |
| AS47317 | Web4ce, s.r.o., CZ | 2 | 1 |
| AS203072 | DomaTV s.r.o., CZ | 0 | 0 |
| AS43542 | OptoNet Communication, spol. s.r.o., CZ | 1 | 1 |
| AS12608 | IGLG Network CZ s.r.o., CZ | 1 | 1 |
| AS197920 | SKODA ICT s.r.o., CZ | 2 | 0 |
| AS213387 | TeSuNet s.r.o., CZ | 1 | 0 |
| AS201648 | Plzensky kraj, CZ | 2 | 1 |
| AS51586 | ServerZone s.r.o., CZ | 2 | 2 |
| AS56427 | Michal Hradil, CZ | 1 | 0 |
| AS201594 | Czech Telecommunication Office, CZ | 1 | 1 |
| AS48574 | T Mobile Czech Republic a.s., CZ | 3 | 0 |
| AS213152 | Narodni bezpecnostni urad Czech Republic, CZ | 2 | 1 |
| AS200806 | BOHEMIA ENERGY entity s.r.o., CZ | 2 | 0 |
| AS199665 | Hana Juzkova, CZ | 1 | 1 |
| AS209155 | Onehostplanet s.r.o., CZ | 13 | 1 |
| AS42189 | Druzstvo EUROSIGNAL, CZ | 4 | 1 |
| AS211898 | vpsFree.cz, z.s., CZ | 0 | 0 |
| AS48960 | AQUA,a.s., CZ | 5 | 1 |
| AS25424 | CEZNET s.r.o., CZ | 7 | 2 |
| AS204943 | NTV cable s.r.o., CZ | 1 | 1 |
| AS204383 | SPCom s.r.o., CZ | 19 | 1 |
| AS198171 | Webglobe, s.r.o., CZ | 1 | 1 |
| AS197542 | Jan Saulich, CZ | 1 | 0 |
| AS208648 | Playground HUB s.r.o., CZ | 2 | 0 |
| AS198161 | Sokolovska uhelna, pravni nastupce, a.s., CZ | 2 | 1 |
| AS41088 | N SYS s.r.o., CZ | 2 | 2 |
| AS206234 | FORTUNA GAME a.s., CZ | 2 | 0 |
| AS197019 | WEDOS Internet, a.s., CZ | 4 | 2 |
| AS59925 | Seonet Multimedia s.r.o., CZ | 1 | 1 |
| AS206908 | FORTUNA GAME a.s., CZ | 1 | 0 |
| AS197798 | Net Connect s.r.o., CZ | 2 | 1 |
| AS203488 | DaLuNET s.r.o., CZ | 4 | 1 |
| AS62159 | Happy Technik s.r.o., CZ | 3 | 0 |
| AS211890 | ProfiSMS s.r.o., CZ | 0 | 0 |
| AS51463 | FAJNCOM s.r.o., CZ | 0 | 0 |
| AS205064 | RockawayX Infra s.r.o., CZ | 1 | 0 |
| AS213104 | FIBER TELECOM s.r.o., CZ | 0 | 0 |
| AS212224 | Coolhousing s.r.o., CZ | 1 | 1 |
| AS57158 | ISP Alliance a.s., CZ | 0 | 0 |
| AS203645 | Jan Ryznar, CZ | 4 | 23 |
| AS213559 | MyOffice, s.r.o., CZ | 1 | 1 |
| AS34955 | Martin Vicenik, CZ | 12 | 0 |
| AS42726 | BusinessCom CZ spol. s r.o., CZ | 2 | 0 |
| AS197444 | COMFEEL s.r.o., CZ | 3 | 2 |
| AS38952 | MAFRA, a.s., CZ | 2 | 0 |
| AS196861 | DIGITAL ACTION s.r.o., CZ | 2 | 1 |
| AS60208 | J&T BANKA, a.s., CZ | 0 | 0 |
| AS199657 | TNtech, s.r.o., CZ | 4 | 1 |
| AS207696 | Dopravni podnik hl.m. Prahy, a.s., CZ | 1 | 1 |
| AS47493 | CEZNET s.r.o., CZ | 1 | 1 |
| AS15614 | Dragon Internet a.s., CZ | 6 | 1 |
| AS214032 | BUDOVIT s.r.o, CZ | 1 | 1 |
| AS215777 | Jiri Cincura, CZ | 0 | 1 |
| AS211445 | Mesto Kralupy nad Vltavou, CZ | 0 | 0 |
| AS212876 | Pardubicky Kraj, CZ | 1 | 1 |
| AS213813 | MaSON z. s., CZ | 0 | 1 |
| AS200844 | STUDENT AGENCY k.s., CZ | 2 | 1 |
| AS212906 | Moneroj s.r.o., CZ | 0 | 0 |
| AS31246 | O2 Czech Republic, a.s., CZ | 5 | 2 |
| AS198103 | CCS Ceska spolecnost pro platebni karty s.r.o., CZ | 3 | 0 |
| AS204394 | Cortex, a.s., CZ | 1 | 1 |
| AS204567 | PCKBnet s.r.o., CZ | 1 | 0 |
| AS49262 | Ataccama Software, s.r.o., CZ | 1 | 1 |
| AS197353 | NN Management Services, s.r.o., CZ | 3 | 0 |
| AS28725 | CETIN a.s., CZ | 9 | 2 |
| AS205400 | VIVO CONNECTION spol. s r.o., CZ | 2 | 1 |
| AS51134 | Development 777 s.r.o., CZ | 4 | 2 |
| AS42306 | Edera Group a.s., CZ | 8 | 4 |
| AS204772 | Reditelstvi silnic a dalnic s.p., CZ | 1 | 1 |
| AS49931 | STARNET, s.r.o., CZ | 0 | 0 |
| AS44104 | LCJ Invest, a.s., CZ | 1 | 0 |
| AS215571 | ITIXO s.r.o., CZ | 0 | 0 |
| AS204917 | Mi Ja Javornik s.r.o., CZ | 1 | 0 |
| AS203450 | Edera Group a.s., CZ | 0 | 0 |
| AS213558 | Spinoco a.s., CZ | 1 | 0 |
| AS211731 | Ministry of labour and social affairs, CZ | 2 | 2 |
| AS39761 | ABAK, Co.Ltd., CZ | 6 | 2 |
| AS57287 | OtavaNet s.r.o., CZ | 1 | 1 |
| AS44770 | Savvy s.r.o., CZ | 1 | 1 |
| AS63113 | Globecorp Networks, CZ | 8 | 0 |
| AS44070 | O2 Czech Republic, a.s., CZ | 2 | 1 |
| AS204351 | NAM system, a.s., CZ | 4 | 0 |
| AS47767 | Regionalni centrum Olomouc s.r.o., CZ | 1 | 1 |
| AS43708 | DATAMAT CZ s.r.o., CZ | 0 | 0 |
| AS202682 | Geetoo Technology s.r.o., CZ | 9 | 2 |
| AS204949 | CMIS s.r.o., CZ | 7 | 0 |
| AS197296 | United Networks SE, CZ | 4 | 1 |
| AS208414 | WEDOS Internet, a.s., CZ | 11 | 105 |
| AS204332 | TKC system s.r.o., CZ | 3 | 1 |
| AS198101 | Kooperativa pojistovna, a.s., Vienna Insurance Group, CZ | 10 | 4 |
| AS211594 | Kleissner Investments s.r.o., CZ | 1 | 1 |
| AS34487 | SouthPrague.Net, z.s., CZ | 1 | 1 |
| AS49142 | HBO Europe s.r.o., CZ | 1 | 0 |
| AS56973 | VITKOVICE IT SOLUTIONS a.s., CZ | 2 | 1 |
| AS212204 | Hattrick PSK d.o.o., CZ | 0 | 0 |
| AS207015 | Position s.r.o., CZ | 1 | 1 |
| AS28755 | ha vel internet s.r.o., CZ | 0 | 0 |
| AS48926 | Pe3ny Net s.r.o., CZ | 6 | 1 |
| AS211546 | Mesto Odry, CZ | 0 | 0 |
| AS201548 | Maxicom, CZ | 2 | 0 |
| AS214886 | Green hosting s.r.o., CZ | 1 | 0 |
| AS48417 | ITS akciova spolecnost, CZ | 9 | 1 |
| AS208712 | CENDIS, s.p., CZ | 1 | 1 |
| AS43413 | NEW TELEKOM, spol. s r.o., CZ | 2 | 1 |
| AS50833 | FIBER TELECOM s.r.o., CZ | 5 | 4 |
| AS199806 | DCIT, a.s., CZ | 1 | 1 |
| AS48889 | GLOBECORP a.s., CZ | 1 | 0 |
| AS210631 | SafeDX s.r.o., CZ | 3 | 3 |
| AS200059 | ISP Alliance a.s., CZ | 0 | 0 |
| AS215582 | Jan Kalista, CZ | 0 | 1 |
| AS204405 | Durnet.cz sro, CZ | 0 | 1 |
| AS30738 | NetArt Group s.r.o., CZ | 3 | 2 |
| AS212453 | FORTUNA GAME a.s., CZ | 2 | 0 |
| AS209431 | PharoCom s.r.o., CZ | 0 | 1 |
| AS215676 | GoodHost s.r.o., CZ | 1 | 1 |
| AS210306 | SferiaNET.cz s.r.o., CZ | 0 | 0 |
| AS218913 | Titan Software z.s., CZ | 0 | 0 |
| AS59970 | AmigoNet s.r.o., CZ | 3 | 2 |
| AS204216 | netsearch s.r.o., CZ | 0 | 0 |
| AS48661 | AIRWAYNET, a.s., CZ | 2 | 1 |
| AS205300 | Sunfox s.r.o., CZ | 1 | 0 |
| AS200918 | Pavel Zizka, CZ | 10 | 1 |
| AS34080 | MIRAMO spol. s.r.o., CZ | 4 | 1 |
| AS29208 | Quantcom, a.s., CZ | 36 | 5 |
| AS29401 | SH.cz s.r.o., CZ | 0 | 0 |
| AS62011 | UNHfree.net z.s., CZ | 2 | 0 |
| AS207945 | CNI Group s.r.o., CZ | 3 | 1 |
| AS207886 | ECOMP spol s r.o., CZ | 4 | 2 |
| AS203743 | ISP Alliance a.s., CZ | 0 | 0 |
| AS196735 | PODA a.s., CZ | 2 | 1 |
| AS41359 | Telefonzentrale s.r.o., CZ | 1 | 0 |
| AS39050 | NET service solution, s.r.o., CZ | 1 | 1 |
| AS196943 | Vissado s.r.o., CZ | 1 | 1 |
| AS205551 | Blep.cz, z. s., CZ | 0 | 0 |
| AS44500 | Vlasimnet s.r.o., CZ | 2 | 1 |
| AS205863 | Stepan Pokorny, CZ | 2 | 0 |
| AS210436 | IT Globe s.r.o., CZ | 0 | 1 |
| AS202906 | Ministerstvo Obrany, CZ | 0 | 0 |
| AS204084 | IGLG Network CZ s.r.o., CZ | 0 | 0 |
| AS215806 | Albert Ceska republika, s.r.o., CZ | 1 | 0 |
| AS206566 | Webglobe, s.r.o., CZ | 0 | 0 |
| AS206601 | FASTER CZ spol. s r.o., CZ | 0 | 0 |
| AS44002 | Sys DataCom s.r.o., CZ | 13 | 33 |
| AS206287 | LysaFree, z.s., CZ | 1 | 0 |
| AS207632 | Jan Betik, CZ | 0 | 0 |
| AS203208 | Czech Telecommunication Office, CZ | 2 | 3 |
| AS61981 | KLFREE NETWORKS, s.r.o., CZ | 0 | 0 |
| AS199734 | Petr Kyvala, CZ | 0 | 0 |
| AS48091 | Kraj Vysocina, CZ | 3 | 2 |
| AS44489 | STARNET, s.r.o., CZ | 26 | 7 |
| AS62178 | MASTER IT Technologies, a.s., CZ | 12 | 1 |
| AS212234 | GamerHost s.r.o., CZ | 0 | 0 |
| AS50971 | JHComp s.r.o., CZ | 1 | 1 |
| AS202877 | VEJNET.CZ s.r.o., CZ | 6 | 1 |
| AS61110 | Sprava informacnich technologii mesta Plzne, p.o., CZ | 3 | 3 |
| AS57707 | Greendata s.r.o., CZ | 6 | 2 |
| AS213057 | innogy Ceska republika a.s, CZ | 3 | 0 |
| AS202522 | O2 Czech Republic, a.s., CZ | 0 | 0 |
| AS213359 | Jan Korinek, CZ | 1 | 1 |
| AS34222 | ZONER a.s., CZ | 2 | 1 |
| AS60275 | RVTech s.r.o., CZ | 0 | 1 |
| AS207242 | NOEL, s.r.o., CZ | 5 | 5 |
| AS206703 | Netcom Solutions s.r.o., CZ | 2 | 1 |
| AS39453 | Ustav zdravotnickych informaci a statistiky Ceske republiky, CZ | 1 | 0 |
| AS215718 | IBA Group a.s., CZ | 1 | 0 |
| AS43523 | A.T.S. INTERNATIONAL s.r.o, CZ | 1 | 0 |
| AS207095 | FORTUNA GAME a.s., CZ | 7 | 0 |
| AS213594 | TECHart systems s.r.o., CZ | 0 | 0 |
| AS57081 | Scarfbot Technologies, s.r.o., CZ | 1 | 1 |
| AS198121 | Whalebone, s.r.o., CZ | 1 | 1 |
| AS199711 | National Cyber and Information Security Agency, CZ | 2 | 2 |
| AS196815 | LAN servis s.r.o., CZ | 1 | 0 |
| AS204907 | Air Bank a.s., CZ | 3 | 0 |
| AS213770 | GTT a.s., CZ | 0 | 0 |
| AS41030 | Jaroslav Novotny, CZ | 7 | 0 |
| AS202872 | KME, spol. s r. o., CZ | 2 | 1 |
| AS43070 | JAW.cz s.r.o., CZ | 6 | 3 |
| AS5610 | O2 Czech Republic, a.s., CZ | 67 | 5 |
| AS43037 | Seznam.cz, a.s., CZ | 6 | 6 |
| AS39906 | CoProSys a.s., CZ | 11 | 2 |
| AS48298 | MINISTERSTVO VNITRA CR, CZ | 9 | 1 |
| AS5588 | T Mobile Czech Republic a.s., CZ | 25 | 2 |
| AS203365 | Optet network, s. r. o., CZ | 1 | 1 |
| AS208962 | Nextremum s.r.o., CZ | 5 | 1 |
| AS43614 | Economia a.s., CZ | 2 | 1 |
| AS51800 | FIBER Network s.r.o., CZ | 1 | 1 |
| AS201265 | ANAFRA a.s., CZ | 2 | 1 |
| AS15485 | T Mobile Czech Republic a.s., CZ | 0 | 0 |
| AS35214 | O2 Czech Republic, a.s., CZ | 0 | 0 |
| AS211137 | ISP Services spol. s.r.o.,, CZ | 1 | 0 |
| AS208663 | Martin Ph. D. Pustka, CZ | 1 | 1 |
| AS197277 | State Institute for Drug Control, CZ | 3 | 1 |
| AS52092 | Alf servis, s.r.o., CZ | 2 | 1 |
| AS41670 | hkfree.org z.s., CZ | 2 | 1 |
| AS52115 | JaroNet services s.r.o., CZ | 2 | 2 |
| AS34819 | H17 Networks, s.r.o., CZ | 1 | 1 |
| AS29113 | Vodafone Czech Republic a.s., CZ | 0 | 0 |
| AS210811 | AK SYSTEM s.r.o., CZ | 0 | 0 |
| AS201934 | HD Internet s.r.o., CZ | 2 | 0 |
| AS205044 | MOSES Internet s.r.o., CZ | 1 | 1 |
| AS200070 | CZ.NIC, z.s.p.o., CZ | 1 | 1 |
| AS57823 | Libor Kotoucek, CZ | 0 | 0 |
| AS204409 | Prestonet s.r.o., CZ | 1 | 1 |
| AS202996 | Ondrej Vrana, CZ | 2 | 1 |
| AS3161 | IT PROFI s.r.o., CZ | 1 | 0 |
| AS214272 | David Barta, CZ | 0 | 0 |
| AS199803 | ComSource s.r.o., CZ | 2 | 1 |
| AS214703 | Core4Net, s.r.o., CZ | 1 | 0 |
| AS205619 | Jiri Chalabala, CZ | 5 | 1 |
| AS44984 | Fortion Networks, s.r.o., CZ | 1 | 1 |
| AS50097 | IPVOIP s.r.o., CZ | 1 | 0 |
| AS201727 | Blond & Brown s.r.o., CZ | 2 | 1 |
| AS42908 | O2 Czech Republic, a.s., CZ | 35 | 9 |
| AS20708 | SKODA AUTO a.s., CZ | 3 | 1 |
| AS56450 | Alberon Letohrad s.r.o, CZ | 2 | 1 |
| AS39455 | Jiri Tlapak, CZ | 1 | 0 |
| AS200848 | ISP Alliance a.s., CZ | 0 | 0 |
| AS206683 | Moravskoslezske inovacni centrum Ostrava, a.s., CZ | 1 | 0 |
| AS198500 | Masarykova univerzita Ustav vypocetni techniky, CZ | 1 | 1 |
| AS209719 | Ministerstvo Obrany, CZ | 1 | 1 |
| AS196843 | KHnet.info, z.s., CZ | 2 | 1 |
| AS25321 | Brink's Cash Solutions CZ , a.s., CZ | 1 | 0 |
| AS215711 | The Ministry of Agriculture of the Czech Republic, CZ | 2 | 1 |
| AS202733 | OK COMP s.r.o., CZ | 0 | 1 |
| AS207855 | SychrovNET s.r.o, CZ | 0 | 0 |
| AS29321 | O2 Czech Republic, a.s., CZ | 5 | 1 |
| AS15935 | ha vel internet s.r.o., CZ | 13 | 57 |
| AS200871 | RockawayX Infra s.r.o., CZ | 2 | 0 |
| AS60086 | Valvera s.r.o., CZ | 1 | 1 |
| AS205345 | HoralNET s.r.o., CZ | 1 | 1 |
| AS197197 | CETIN a.s., CZ | 1 | 1 |
| AS202948 | FORTUNA GAME a.s., CZ | 3 | 0 |
| AS57560 | XLNET s.r.o., CZ | 2 | 1 |
| AS210139 | DPT s.r.o., CZ | 2 | 2 |
| AS199220 | KrU Stredoceskeho kraje, CZ | 2 | 1 |
| AS198882 | Karlovarsky Kraj, CZ | 0 | 0 |
| AS198282 | CAH Building s.r.o., CZ | 1 | 1 |
| AS49985 | IP4ISP z.s.p.o, CZ | 6 | 1 |
| AS24971 | MasterDC s.r.o., CZ | 33 | 13 |
| AS47627 | NIX.CZ z.s.p.o., CZ | 0 | 0 |
| AS205234 | Brnenske komunikace a.s., CZ | 4 | 0 |
| AS206177 | SitePark s.r.o., CZ | 1 | 4 |
| AS62176 | EZE a.s., CZ | 0 | 0 |
| AS203385 | Pernix systems s.r.o., CZ | 3 | 2 |
| AS202921 | CC INTERNET s.r.o., CZ | 12 | 1 |
| AS49101 | CEZNET s.r.o., CZ | 2 | 2 |
| AS201922 | mapnet IT services s.r.o., CZ | 1 | 2 |
| AS215757 | Carrier Refrigeration Operation Czech Republic s.r.o., CZ | 0 | 0 |
| AS198346 | NETFORMS s.r.o., CZ | 4 | 3 |
| AS47681 | O2 Czech Republic, a.s., CZ | 1 | 0 |
| AS60727 | K2 atmitec s.r.o., CZ | 0 | 0 |
| AS211700 | Dexus Internet s.r.o., CZ | 1 | 1 |
| AS206159 | Fresh Data s.r.o., CZ | 1 | 1 |
| AS213776 | TeleConnect CZ s.r.o., CZ | 0 | 0 |
| AS52130 | Livesport s.r.o., CZ | 2 | 1 |
| AS201464 | ISP Alliance a.s., CZ | 1 | 0 |
| AS198002 | CEZNET s.r.o., CZ | 1 | 1 |
| AS202131 | ISP Alliance a.s., CZ | 1 | 0 |
| AS208816 | It services company s.r.o., CZ | 0 | 1 |
| AS39392 | SH.cz s.r.o., CZ | 12 | 5 |
| AS210401 | Batlify Internet s.r.o., CZ | 0 | 1 |
| AS206591 | Alza.cz a.s., CZ | 1 | 0 |
| AS206438 | MX NET Telekomunikace s.r.o., CZ | 5 | 17 |
| AS202979 | NGA Services, spol. s r.o., CZ | 1 | 1 |
| AS201931 | LBnet.cz s.r.o., CZ | 2 | 1 |
| AS20643 | PilsFree servis, s.r.o., CZ | 1 | 1 |
| AS204172 | TTC TELEKOMUNIKACE s.r.o., CZ | 1 | 0 |
| AS50348 | KVADOS, a.s., CZ | 1 | 1 |
| AS198991 | TV Nova sro, CZ | 1 | 0 |
| AS29504 | Freenet Liberec, z.s., CZ | 1 | 1 |
| AS28972 | M SOFT, spol. s r.o., CZ | 6 | 2 |
| AS205026 | wvg solution s.r.o., CZ | 1 | 0 |
| AS25512 | CD Telematika a.s., CZ | 11 | 1 |
| AS197806 | Andrei Rys, CZ | 1 | 8 |
| AS49121 | IN8INITY, CZ | 20 | 9 |
| AS207391 | E LINKX a.s., CZ | 1 | 0 |
| AS62099 | JM Networks, s.r.o., CZ | 4 | 1 |
| AS202912 | Petr Hadraba, CZ | 0 | 0 |
| AS20723 | AVONET, s.r.o., CZ | 7 | 1 |
| AS57288 | StaMPi, spol. s r.o., CZ | 1 | 1 |
| AS57904 | Vevynet s.r.o., CZ | 1 | 0 |
| AS43709 | SilesNet s.r.o., CZ | 7 | 7 |
| AS198624 | Petr Balek trading as Hexado.pro, CZ | 1 | 2 |
| AS213223 | GasNet, s.r.o., CZ | 3 | 0 |
| AS197451 | Brno University of Technology, CZ | 8 | 4 |
| AS58215 | Omniline Investment s.r.o., CZ | 1 | 0 |
| AS200449 | Qrator Labs CZ s.r.o., CZ | 10 | 14 |
| AS214224 | CeskaSit.net Networks s.r.o., CZ | 1 | 0 |
| AS210367 | Krajska zdravotni, a.s., CZ | 1 | 1 |
| AS208906 | SYNOT ICT Services, a.s., CZ | 1 | 1 |
| AS56353 | First Line Software s.r.o., CZ | 1 | 0 |
| AS200600 | Seznam.cz datova centra, s.r.o., CZ | 1 | 1 |
| AS202551 | INERA.CZ s.r.o., CZ | 1 | 1 |
| AS8251 | FreeTel, s.r.o., CZ | 6 | 1 |
| AS47110 | Cloud4com s.r.o., CZ | 5 | 1 |
| AS204150 | StormHost, CZ | 0 | 18 |
| AS50007 | Reliable Communications s.r.o., CZ | 0 | 0 |
| AS209834 | KAZA.cz s.r.o., CZ | 1 | 0 |
| AS216450 | Letiste Praha, a. s., CZ | 5 | 0 |
| AS52058 | za200.cz s.r.o., CZ | 2 | 0 |
| AS41779 | LajsiNET s.r.o., CZ | 1 | 1 |
| AS57007 | NITEX ISP s.r.o., CZ | 1 | 1 |
| AS52029 | Palanet s.r.o., CZ | 9 | 0 |
| AS39904 | MERIT GROUP a.s, CZ | 3 | 1 |
| AS46553 | AS46553 s.r.o., CZ | 0 | 1 |
| AS196822 | SELECT SYSTEM, s.r.o., CZ | 1 | 1 |
| AS210958 | Fastport a.s., CZ | 2 | 1 |
| AS206344 | Fortion Networks, s.r.o., CZ | 0 | 0 |
| AS47232 | ISP Alliance a.s., CZ | 10 | 6 |
| AS198605 | AVAST Software s.r.o., CZ | 21 | 8 |
| AS208805 | INTERCONNECT s.r.o., CZ | 1 | 0 |
| AS59747 | NIX.CZ z.s.p.o., CZ | 0 | 1 |
| AS210604 | Pernix systems s.r.o., CZ | 2 | 0 |
| AS208659 | INNC s.r.o., CZ | 1 | 1 |
| AS20701 | CZ.NIC, z.s.p.o., CZ | 2 | 2 |
| AS50301 | BrazdimNET s.r.o., CZ | 2 | 1 |
| AS60606 | PRO ZETA a.s., CZ | 6 | 2 |
| AS57077 | AB NET s.r.o., CZ | 2 | 1 |
| AS196916 | BusinessCom CZ spol. s r.o., CZ | 2 | 0 |
| AS197307 | Core4Net, s.r.o., CZ | 3 | 1 |
| AS56344 | Viridium.cz s.r.o., CZ | 4 | 1 |
| AS39790 | Web4U s.r.o., CZ | 5 | 3 |
| AS214945 | Ministerstvo zahranicnich veci Ceske Republiky, CZ | 1 | 3 |
| AS50100 | SychrovNET s.r.o, CZ | 0 | 0 |
| AS202605 | EMPECOM, s.r.o., CZ | 1 | 1 |
| AS41824 | O2 Czech Republic, a.s., CZ | 0 | 0 |
| AS60218 | IT8 Informacni technologie s.r.o., CZ | 1 | 1 |
| AS201263 | Brno University of Technology, CZ | 1 | 1 |
| AS50067 | CESAL s.r.o., CZ | 4 | 1 |
| AS205724 | T.S.BOHEMIA a.s., CZ | 1 | 0 |
| AS219440 | FunFirst s.r.o., CZ | 2 | 2 |
| AS207167 | mapnet IT services s.r.o., CZ | 5 | 2 |
| AS197426 | Marek Hradil, CZ | 0 | 0 |
| AS212362 | INERA.CZ s.r.o., CZ | 0 | 0 |
| AS199350 | Ministerstvo financi, CZ | 1 | 1 |
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