The report below shows ASNs assigned to Czech Republic, ranked by the total number of IP addresses currently active on each network. Click on the ASN for full IP address information, whois details and more. You can also view our hosting report to see the networks ranked by how many domain names they host.
| ASN | Name | Num IPs |
|---|---|---|
| AS5610 | O2 Czech Republic, a.s. | 1,606,912 |
| AS5588 | T-Mobile Czech Republic a.s. | 1,367,815 |
| AS2852 | CESNET z.s.p.o. | 848,896 |
| AS44546 | ALFA TELECOM s.r.o. | 526,336 |
| AS13036 | T-Mobile Czech Republic a.s. | 319,488 |
| AS5578 | BENESTRA, s.r.o. | 223,744 |
| AS30764 | PODA a.s. | 221,184 |
| AS16019 | Vodafone Czech Republic a.s. | 174,592 |
| AS28725 | Ceska Telekomunikacni Infrastruktura a.s | 144,384 |
| AS6706 | Dial Telecom, a.s. | 139,264 |
| AS25512 | CD-Telematika a.s. | 119,296 |
| AS16246 | RIO Media a.s. | 115,712 |
| AS15425 | COMA s.r.o. | 111,616 |
| AS25248 | RADIOKOMUNIKACE a.s. | 107,776 |
| AS39906 | CoProSys a.s. | 96,000 |
| AS9080 | Ipex Ltd. | 90,112 |
| AS2571 | DHL Information Services (Europe) s.r.o | 86,016 |
| AS15685 | Casablanca INT | 83,456 |
| AS12767 | T-Mobile Czech Republic a.s. | 69,632 |
| AS31246 | SMART Comp. a.s. | 67,584 |
| AS197451 | Brno University of Technology | 67,072 |
| AS50245 | Serverel Corp | 62,976 |
| AS24971 | Master Internet s.r.o. | 58,880 |
| AS28851 | Fortech s.r.o. | 58,368 |
| AS12570 | itself s.r.o. | 56,832 |
| AS15935 | ha-vel internet s.r.o. | 51,200 |
| AS47965 | Signalhorn Trusted Networks GmbH | 44,800 |
| AS6740 | TS-Data s.r.o. | 41,984 |
| AS24806 | INTERNET CZ, a.s. | 37,376 |
| AS25424 | InterneXt 2000, s.r.o. | 33,792 |
| AS42908 | Nordic Telecom s.r.o | 32,768 |
| AS39392 | SuperNetwork s.r.o. | 30,208 |
| AS34093 | NWT a.s | 28,672 |
| AS49931 | SITKOM spol. s r.o. | 25,600 |
| AS43708 | METRONET s.r.o. | 24,064 |
| AS47232 | ISP Alliance a.s. | 20,739 |
| AS29134 | Ignum s.r.o. | 19,968 |
| AS39791 | Telco Pro Services, a. s. | 19,456 |
| AS34040 | TTNET s.r.o. | 19,456 |
| AS61296 | TechCom s.r.o. | 17,408 |
| AS43541 | VSHosting s.r.o. | 17,408 |
| AS8251 | FreeTel, s.r.o. | 17,408 |
| AS41046 | Nej.cz s.r.o. | 16,384 |
| AS196822 | SELECT SYSTEM, s.r.o. | 16,384 |
| AS197197 | M.NET STUDENKA s. r. o. | 16,384 |
| AS196735 | JON.CZ s.r.o. | 16,384 |
| AS50022 | Kristelecom Ltd. | 16,384 |
| AS28972 | M-SOFT, spol. s r.o. | 15,360 |
| AS20723 | AVONET, s.r.o. | 15,360 |
| AS51351 | LTD Objedinennaja Setevaja Kompanija | 14,848 |
| AS44489 | STARNET, s.r.o. | 14,848 |
| AS42306 | Edera Group a.s. | 14,336 |
| AS49985 | IP4ISP z.s.p.o | 13,312 |
| AS21430 | WIA spol. s.r.o. | 13,312 |
| AS47951 | LLC Telecontur | 12,288 |
| AS34315 | Dial Telecom, a.s. | 12,288 |
| AS15614 | Dragon Internet a.s. | 12,288 |
| AS48474 | FOFRNET spol. s r.o. | 12,288 |
| AS35592 | Coolhousing s.r.o. | 12,288 |
| AS197013 | Sprintel s.r.o. | 11,776 |
| AS198171 | HOSTING90 systems s.r.o. | 11,776 |
| AS24641 | FASTER CZ spol. s r.o. | 11,776 |
| AS207187 | TKR Jasek, s.r.o. | 11,264 |
| AS50698 | TETA s.r.o. | 11,264 |
| AS197019 | WEDOS Internet, a.s. | 11,264 |
| AS198605 | AVAST Software s.r.o. | 11,264 |
| AS196845 | OMEGA tech s.r.o. | 11,264 |
| AS62160 | Yes Networks Unlimited Ltd | 10,752 |
| AS34971 | Prometeus di Daniela Agro | 10,496 |
| AS49106 | Opticom Group CJSC | 10,240 |
| AS43542 | OptoNet Communication, spol. s.r.o. | 10,240 |
| AS47834 | SOFTEX NCP, s.r.o. | 10,240 |
| AS35361 | GREPA Networks s.r.o. | 10,240 |
| AS34080 | MIRAMO spol. s.r.o. | 10,240 |
| AS50241 | UnitTelecom Ltd | 10,240 |
| AS35214 | OXID Networks s.r.o. | 10,240 |
| AS43070 | JAW.cz s.r.o. | 9,728 |
| AS49889 | Crystal Telecom Ltd | 8,448 |
| AS198002 | FDLnet.CZ, s.r.o. | 8,192 |
| AS51731 | GTT a.s. | 8,192 |
| AS43709 | SilesNet s.r.o. | 8,192 |
| AS57069 | Dempsey and Clark s.r.o. | 8,192 |
| AS51420 | OS Cyrilek.net | 8,192 |
| AS59479 | GEMNET s.r.o. | 8,192 |
| AS35236 | 2 connect a.s. | 8,192 |
| AS43507 | RETE internet, s.r.o. | 8,192 |
| AS49101 | KABELOVA TELEVIZE CZ s.r.o. | 8,192 |
| AS41088 | N-SYS s.r.o. | 8,192 |
| AS33943 | Cesky Bezdrat, s.r.o. | 8,192 |
| AS47493 | WMS s.r.o. | 8,192 |
| AS197798 | Net-Connect s.r.o. | 8,192 |
| AS8913 | Mopos Communications A.S. | 8,192 |
| AS57800 | Cadr-TV LLE TVRC | 8,192 |
| AS57564 | BAJA Group s.r.o. | 8,192 |
| AS202237 | Wic-Net, s.r.o. | 8,192 |
| AS56566 | SATT a.s. | 8,192 |
| AS48574 | Planet A, a.s. | 8,192 |
| AS25234 | ACTIVE 24 | 8,192 |
| AS51891 | GSP ltd. | 8,192 |
| AS35613 | NetDataComm, s.r.o. | 8,192 |
| AS8518 | RFE/RL, Inc., organizacni slozka | 7,168 |
| AS44065 | NETAIR s.r.o. | 7,168 |
| AS33883 | TRIOPTIMUM s.r.o. | 7,168 |
| AS198813 | SychrovNET s.r.o | 7,168 |
| AS39235 | Dat, s.r.o. | 7,168 |
| AS35046 | OMEGA plus Chrudim s.r.o. | 7,168 |
| AS29583 | Spinoco Czech Republic, a.s. | 6,400 |
| AS25192 | CZ.NIC, z.s.p.o. | 6,144 |
| AS48926 | Pe3ny Net s.r.o. | 6,144 |
| AS28905 | BECO Link,spol.s.r.o. | 6,144 |
| AS42000 | Kaora s.r.o. | 6,144 |
| AS62178 | MASTER IT Technologies, a.s. | 6,144 |
| AS47114 | SychrovNET s.r.o | 6,144 |
| AS51428 | IRONNET Ltd. | 6,144 |
| AS39761 | ABAK, Ltd. | 6,144 |
| AS34222 | ZONER software, a.s | 6,144 |
| AS43413 | NEW TELEKOM, spol. s r.o. | 6,144 |
| AS200918 | Pavel Zizka | 5,632 |
| AS42189 | Druzstvo EUROSIGNAL | 5,120 |
| AS30877 | Ariadna-Link CJSC | 5,120 |
| AS39790 | Web4U s.r.o. | 5,120 |
| AS198403 | Matrigo s.r.o. | 5,120 |
| AS202895 | TFnet s.r.o. | 5,120 |
| AS202618 | Rychly drat, s.r.o. | 5,120 |
| AS49025 | PRO-ZETA a.s. | 5,120 |
| AS196843 | KHnet.info, z.s. | 5,120 |
| AS197296 | Maxtel s.r.o. | 5,120 |
| AS48494 | BUKO LTD | 5,120 |
| AS201476 | ISP Alliance a.s. | 5,120 |
| AS198668 | Tlapnet s.r.o. | 5,120 |
| AS31349 | a-net Liberec s.r.o. | 5,120 |
| AS39817 | OvaNet, a.s. | 5,120 |
| AS41670 | hkfree.org z.s. | 5,120 |
| AS50825 | UVT Internet s.r.o. | 5,120 |
| AS197307 | Core4Net, s.r.o. | 5,120 |
| AS52092 | Alf servis, s.r.o. | 4,608 |
| AS50025 | Net Television Ltd | 4,352 |
| AS196782 | Marek Smutny | 4,096 |
| AS56450 | Alberon Letohrad s.r.o | 4,096 |
| AS21045 | QNET CZ s.r.o. | 4,096 |
| AS48417 | ITS akciova spolecnost | 4,096 |
| AS198420 | CMS Consulting s.r.o. | 4,096 |
| AS201730 | DataSpring s.r.o. | 4,096 |
| AS197029 | LAM plus s.r.o. | 4,096 |
| AS57279 | Sauron CZ s.r.o. | 4,096 |
| AS207242 | NOEL, s.r.o. | 4,096 |
| AS49465 | Teleradiocompany RubinTelecom Ltd. | 4,096 |
| AS198991 | CET 21 spol. s.r.o. | 4,096 |
| AS56456 | C2NET s.r.o. | 4,096 |
| AS57287 | OtavaNet s.r.o. | 4,096 |
| AS57188 | ORKA systems, s.r.o. | 4,096 |
| AS48780 | OLTELECOM JSC | 4,096 |
| AS49767 | INTERNET Pb, spol. s r.o. | 4,096 |
| AS197550 | Internet4you.cz, spol. s r.o. | 4,096 |
| AS197846 | Radovan Ochvat trading as SAO Computers | 4,096 |
| AS57294 | Internet Expert s.r.o. | 4,096 |
| AS56442 | Lubos Hutar | 4,096 |
| AS57496 | AIRESS CESKO s.r.o. | 4,096 |
| AS51427 | HUMLNET s.r.o. | 4,096 |
| AS57399 | MONEX s.r.o. | 4,096 |
| AS49890 | ABLE agency, s.r.o. | 4,096 |
| AS47868 | SUPRO, spol. s r.o. | 4,096 |
| AS43203 | TELCONET s.r.o. | 4,096 |
| AS48661 | AIRWAYNET, a.s. | 4,096 |
| AS44070 | MCnet, s.r.o. | 4,096 |
| AS39904 | MERIT GROUP a.s | 4,096 |
| AS51800 | FIBER Network s.r.o. | 4,096 |
| AS51968 | NEOS v.o.s. | 4,096 |
| AS47269 | Core4Net, s.r.o. | 4,096 |
| AS41453 | SITEL spol. s r.o. | 4,096 |
| AS42477 | Cerberos s.r.o. | 4,096 |
| AS56360 | TRINITY CZECH REPUBLIC, s.r.o. | 4,096 |
| AS52115 | JaroNet s.r.o. | 4,096 |
| AS29086 | GiTy, a.s. | 4,096 |
| AS198500 | Masarykova univerzita - Ustav vypocetni techniky | 4,096 |
| AS207198 | Kabelova televize Koprivnice, s.r.o. | 4,096 |
| AS60592 | Gransy s.r.o. | 3,840 |
| AS198167 | Apptocloud.com s.r.o. | 3,072 |
| AS49320 | Golitsyno Telecom Ltd | 3,072 |
| AS44712 | eHAMnet, s.r.o. | 3,072 |
| AS47317 | Web4ce, s.r.o. | 3,072 |
| AS197046 | FIXnet s.r.o. | 3,072 |
| AS44002 | Sys-DataCom s.r.o. | 3,072 |
| AS34047 | Bystrov Dmitriy Sergeevich | 3,072 |
| AS57077 | AB-NET s.r.o. | 3,072 |
| AS204064 | TaNET West s.r.o. | 3,072 |
| AS197879 | HelaPC s.r.o. | 3,072 |
| AS43614 | Economia a.s. | 3,072 |
| AS56973 | VITKOVICE IT SOLUTIONS a.s. | 3,072 |
| AS43037 | Seznam.cz, a.s. | 3,072 |
| AS48298 | MINISTERSTVO VNITRA CR | 3,072 |
| AS48364 | Radim Pytela - AC Vyskov | 3,072 |
| AS200059 | AIRWEB, spol. s r.o. | 3,072 |
| AS47727 | Warnet.cz s.r.o. | 3,072 |
| AS34955 | Martin Vicenik | 2,816 |
| AS198977 | UnArtel s.r.o. | 2,560 |
| AS29148 | SURANY.NET s.r.o. | 2,560 |
| AS50398 | Fast Communication, s.r.o. | 2,560 |
| AS52058 | Michal Najman | 2,560 |
| AS207239 | VP INET z.s. | 2,560 |
| AS47909 | Baikal-Telecom Ltd. | 2,560 |
| AS34911 | ELDATA prazska s.r.o. | 2,304 |
| AS48960 | AQUA,a.s. | 2,304 |
| AS50301 | BrazdimNET s.r.o. | 2,304 |
| AS6881 | NIX.CZ z.s.p.o. | 2,304 |
| AS34049 | H-data, spol. s r.o. | 2,304 |
| AS44430 | MaRcom-Eko s.r.o. | 2,304 |
| AS197206 | BusinessCom CZ spol. s r.o. | 2,304 |
| AS201811 | Austole s.r.o. | 2,304 |
| AS51210 | KRAXNET s.r.o. | 2,048 |
| AS60931 | LAN-Service Ltd. | 2,048 |
| AS60529 | Miroslav Klement | 2,048 |
| AS51655 | Ilim Telecom Ltd. | 2,048 |
| AS62011 | UNHfree.net z.s. | 2,048 |
| AS204165 | Cznet s.r.o. | 2,048 |
| AS48451 | Prazska energetika, a.s. | 2,048 |
| AS39896 | Angel Systems s.r.o. | 2,048 |
| AS52176 | TTC TELEKOMUNIKACE s.r.o. | 2,048 |
| AS201648 | Plzensky kraj | 2,048 |
| AS57823 | INERCOM, s.r.o. | 2,048 |
| AS198161 | Sokolovska uhelna, pravni nastupce, a.s. | 2,048 |
| AS47767 | Regionalni centrum Olomouc s.r.o. | 2,048 |
| AS206548 | Tlap s.r.o. | 2,048 |
| AS50163 | Altnet s.r.o. | 2,048 |
| AS201654 | Web4Soft Internet s.r.o. | 2,048 |
| AS51524 | Ales Tesacek | 2,048 |
| AS44424 | Internet Mall, a.s. | 2,048 |
| AS52084 | ATL Obchodni s.r.o. | 2,048 |
| AS198282 | SAT - AN CableNet SE | 2,048 |
| AS47913 | Cerberos s.r.o. | 2,048 |
| AS203165 | Statni pokladna Centrum sdilenych sluzeb, s.p. | 2,048 |
| AS56624 | Petr Kadanik | 2,048 |
| AS50975 | AVX Czech republic s.r.o | 2,048 |
| AS206818 | CLABOR TECH SOLUTION LLC | 2,048 |
| AS51525 | Informacionnuye technologiyi Ltd | 2,048 |
| AS44500 | Vlasimnet s.r.o. | 2,048 |
| AS196873 | Netlancers s.r.o. | 2,048 |
| AS196861 | DIGITAL ACTION s.r.o. | 2,048 |
| AS47131 | PH, spol. s r. o. | 2,048 |
| AS57798 | IT-Net ltd. | 2,048 |
| AS43757 | ICZ a.s. | 2,048 |
| AS41030 | Jaroslav Novotny | 2,048 |
| AS49085 | Svyaz-Service-Internet Ltd | 2,048 |
| AS197277 | State Institute for Drug Control | 2,048 |
| AS47949 | gsnet.cz s.r.o. | 2,048 |
| AS21241 | Global Payments Europe, s.r.o. | 2,048 |
| AS200114 | PRO-COMUNICATION s.r.o | 2,048 |
| AS198031 | Trustica s.r.o. | 2,048 |
| AS198248 | Richard Filip | 2,048 |
| AS57288 | StaMPi, spol. s r.o. | 2,048 |
| AS40964 | ASTELNET s.r.o. | 2,048 |
| AS52130 | LiveSport s.r.o. | 2,048 |
| AS197565 | Golden activity s.r.o. | 2,048 |
| AS199101 | MITRANET.CZ, s.r.o. | 2,048 |
| AS197442 | ZENIT-servis s.r.o. | 2,048 |
| AS50442 | Multi-Net plus Ltd | 2,048 |
| AS197542 | Jan Saulich | 2,048 |
| AS51400 | SPOJE.NET s.r.o. | 2,048 |
| AS52154 | mjanik.net s.r.o. | 2,048 |
| AS31461 | Moravia IT s.r.o. | 2,048 |
| AS61425 | Mlada fronta a.s. | 2,048 |
| AS38952 | MAFRA, a.s. | 2,048 |
| AS52029 | Ing. Petr Lukes | 2,048 |
| AS196815 | LAN servis s.r.o. | 2,048 |
| AS197393 | Ladislav Rudolf | 2,048 |
| AS6679 | Skadi Telecom JSC | 2,048 |
| AS57566 | Wircom s.r.o. | 2,048 |
| AS206420 | KABEL servis Praha spol. s r.o. | 2,048 |
| AS20609 | KAZA.cz s.r.o. | 2,048 |
| AS197083 | K2 atmitec s.r.o. | 2,048 |
| AS196684 | VITALATIV, s.r.o. | 2,048 |
| AS50348 | KVADOS, a.s. | 2,048 |
| AS50971 | JHComp s.r.o. | 2,048 |
| AS62099 | JM-Net, z.s. | 2,048 |
| AS43895 | Zentiva k.s. | 2,048 |
| AS197218 | PP Dmutrashko Evgeny Vitalievich | 2,048 |
| AS29504 | Freenet Liberec, z.s. | 1,536 |
| AS58239 | hanspaul-city.net s.r.o. | 1,536 |
| AS196653 | BEST-NET s.r.o. | 1,536 |
| AS199803 | ComSource s.r.o. | 1,536 |
| AS42995 | Geotelecom Ltd. | 1,536 |
| AS197694 | Municipal Office of the City Prague | 1,536 |
| AS48091 | Kraj Vysocina | 1,536 |
| AS62403 | Disk Group Ltd. | 1,536 |
| AS47110 | Cloud4com, a.s. | 1,280 |
| AS200678 | ITexpres s.r.o. | 1,280 |
| AS197376 | Autocont CZ a.s. | 1,280 |
| AS201163 | Komercni banka, a.s. | 1,280 |
| AS197920 | SKODA ICT s.r.o. | 1,280 |
| AS62159 | Happy Technik s.r.o. | 1,280 |
| AS42078 | XOTEL SIA | 1,280 |
| AS198725 | Ultimum Technologies s.r.o. | 1,280 |
| AS49359 | Dmitry Kozhushko | 1,280 |
| AS59970 | AmigoNet s.r.o. | 1,024 |
| AS43129 | Smileinvest LTD | 1,024 |
| AS59925 | Seonet Multimedia s.r.o. | 1,024 |
| AS31559 | Zdenek Soucek | 1,024 |
| AS199600 | Virtis s.r.o. | 1,024 |
| AS200717 | STEN.cz s.r.o. | 1,024 |
| AS207153 | Stream-iT, s.r.o. | 1,024 |
| AS206566 | savana.cz s.r.o | 1,024 |
| AS206177 | SitePark s.r.o. | 1,024 |
| AS202877 | VEJNET.CZ s.r.o. | 1,024 |
| AS201813 | Haug-land s.r.o. | 1,024 |
| AS57081 | Scarfbot Technologies, s.r.o. | 1,024 |
| AS200828 | TERMS a.s. | 1,024 |
| AS58220 | Tomas Budai | 1,024 |
| AS50107 | tcp cloud a.s. | 1,024 |
| AS198212 | TeleNet Sayansk LLC | 1,024 |
| AS197786 | Telefonnyie seti Ltd. | 1,024 |
| AS60086 | Valvera s.r.o. | 1,024 |
| AS199657 | TNtech, s.r.o. | 1,024 |
| AS206569 | TEORA s.r.o. | 1,024 |
| AS206270 | TrojanoviceNET s.r.o. | 1,024 |
| AS196978 | Milos Tuma | 1,024 |
| AS57904 | Vevynet s.r.o. | 1,024 |
| AS62102 | Informacni sluzby energetika a.s. | 1,024 |
| AS201625 | United Networks SE | 1,024 |
| AS205653 | Jumpshot s.r.o. | 1,024 |
| AS205619 | Jiri Chalabala | 1,024 |
| AS205857 | Diverse Path Solutions Inc | 1,024 |
| AS200848 | Miroslav Holienka | 1,024 |
| AS61981 | Mach3net s.r.o. | 1,024 |
| AS201548 | Milan Zelenka | 1,024 |
| AS59871 | Heureka Shopping s.r.o | 1,024 |
| AS201179 | Vaudevile s.r.o. | 1,024 |
| AS56344 | Lukas Vacek | 1,024 |
| AS200600 | Seznam.cz datova centra, s.r.o. | 1,024 |
| AS205982 | Mraknet s.r.o. | 1,024 |
| AS44770 | Savvy s.r.o. | 1,024 |
| AS61169 | SporkNeT s.r.o. | 1,024 |
| AS205968 | GeneralNet s.r.o. | 1,024 |
| AS202556 | Spolek Krivonet | 1,024 |
| AS198101 | Kooperativa pojistovna, a.s., Vienna Insurance Group | 1,024 |
| AS201533 | United Networks SE | 1,024 |
| AS201559 | United Networks SE | 1,024 |
| AS61110 | Sprava informacnich technologii mesta Plzne, p.o. | 1,024 |
| AS49839 | MKS Ltd. | 1,024 |
| AS30738 | NetArt Group s.r.o. | 1,024 |
| AS51025 | ServerPark DC2 s.r.o. | 1,024 |
| AS56562 | Telecom Plus Company Ltd. | 1,024 |
| AS202719 | Pranet s.r.o. | 1,024 |
| AS203365 | Optet network, s. r. o. | 1,024 |
| AS199405 | Oslavany.NET | 1,024 |
| AS202979 | NGA Services, spol. s r.o. | 1,024 |
| AS198346 | NETFORMS s.r.o. | 1,024 |
| AS41779 | LajsiNET s.r.o. | 1,024 |
| AS199711 | Narodni bezpecnostni urad | 1,024 |
| AS199350 | Ministerstvo financi | 1,024 |
| AS197575 | CHP Mediana-Servis | 1,024 |
| AS206334 | AVG Technologies CZ, s.r.o. | 1,024 |
| AS35420 | Perspektiva Ltd. | 1,024 |
| AS205863 | Stepan Pokorny | 1,024 |
| AS49573 | JimmyNet s.r.o. | 1,024 |
| AS197895 | ONYX engineering, spol. s r.o. | 1,024 |
| AS51211 | PE Rulev Dmitriy Alexandrovich | 1,024 |
| AS51247 | ADVICE FORGE LTD | 1,024 |
| AS57779 | ICTIS.CZ s.r.o. | 1,024 |
| AS202551 | INERA.CZ s.r.o. | 1,024 |
| AS198814 | ALPHA StylSoft, s.r.o. | 1,024 |
| AS35096 | Alef Nula a.s. | 1,024 |
| AS8646 | cloudinfrastack, s.r.o. | 1,024 |
| AS206344 | AUKRO s.r.o. | 1,024 |
| AS62405 | Brouzdal, s.r.o. | 1,024 |
| AS206951 | BMB-Green s.r.o. | 1,024 |
| AS199490 | INTERCONNECT s.r.o. | 1,024 |
| AS48602 | Connect plus s.r.o. | 1,024 |
| AS202774 | COMTEX s.r.o. | 1,024 |
| AS206429 | CORSAT s.r.o | 1,024 |
| AS200474 | CRFreeNet, z.s. | 1,024 |
| AS48085 | DNIPRO-Techcenter Ltd | 1,024 |
| AS39307 | Digital Communications Ltd. | 1,024 |
| AS203018 | PAMICO CZECH, s.r.o. | 1,024 |
| AS198284 | Mesto Velka Bystrice | 1,024 |
| AS12344 | CZECH IT CLUSTER, druzstvo | 1,024 |
| AS51371 | Ashtarak-Elit Ltd. | 1,024 |
| AS202605 | EMPECOM, s.r.o. | 1,024 |
| AS203411 | FORTUNA GAME a.s. | 1,024 |
| AS201926 | Futurenet ISP s.r.o. | 1,024 |
| AS42269 | Foton Ltd | 1,024 |
| AS49013 | Fusion Media, s.r.o. | 1,024 |
| AS25238 | MONETA Money Bank, a.s. | 1,024 |
| AS198657 | GOLDWARE CZ s.r.o. | 1,024 |
| AS202682 | G2 server CZ s.r.o. | 1,024 |
| AS60266 | Home Credit International a.s. | 1,024 |
| AS49142 | HBO Europe s.r.o. | 1,024 |
| AS203550 | i2net cz s.r.o. | 1,024 |
| AS206784 | Internet Praha Josefov s.r.o. | 1,024 |
| AS57007 | NITEX ISP s.r.o. | 1,024 |
| AS200155 | Technologicke centrum Pisek s.r.o. | 1,024 |
| AS50784 | Intraweb servis s.r.o. | 1,024 |
| AS206142 | Internet TV, Inc. | 1,024 |
| AS51744 | Non-profit organization Jablonka.cz | 1,024 |
| AS51382 | Ing. Leos Janouch | 1,024 |
| AS13199 | Jaroslav Doubrava | 1,024 |
| AS199298 | Jan Stetina | 1,024 |
| AS197444 | Vlastimil Drazsky | 1,024 |
| AS59984 | KLFREE NETWORKS, s.r.o. | 1,024 |
| AS206212 | KCG spol. s.r.o. | 1,024 |
| AS202872 | KME, spol. s r. o. | 1,024 |
| AS57191 | LLC IT Business | 1,024 |
| AS200874 | Liberecky kraj | 1,024 |
| AS205719 | Data & File Processing s.r.o. | 1,024 |
| AS203450 | LOGICPRIM s.r.o. | 1,024 |
| AS56936 | Mbit City Ltd. | 1,024 |
| AS56827 | mirnet s.r.o. | 1,024 |
| AS57158 | MELVI s.r.o. | 1,024 |
| AS203376 | Mailkit s.r.o. | 1,024 |
| AS202874 | Zlinsky Kraj | 1,024 |
| AS200449 | Qrator Labs CZ s.r.o. | 1,024 |
| AS50980 | net3, s.r.o. | 1,024 |
| AS62176 | EZE A.S. | 1,024 |
| AS57560 | XLNET s.r.o. | 1,024 |
| AS50497 | Orlicom Ltd | 1,024 |
| AS59664 | Opton s.r.o. | 1,024 |
| AS47749 | ORIFLAME SOFTWARE s.r.o. | 1,024 |
| AS201457 | Pojistovna Ceske sporitelny, a.s., Vienna Insurance Group | 1,024 |
| AS44984 | Fortion Networks, s.r.o. | 1,024 |
| AS207015 | Position s.r.o. | 1,024 |
| AS200635 | pragmatel s.r.o. | 1,024 |
| AS20643 | PilsFree servis, s.r.o. | 1,024 |
| AS203385 | Pernix systems s.r.o. | 1,024 |
| AS12984 | PilsFree, z. s. | 1,024 |
| AS203328 | PVfree.net, z. s. | 1,024 |
| AS20708 | SKODA AUTO a.s. | 1,024 |
| AS200844 | STUDENT AGENCY k.s. | 1,024 |
| AS201727 | Spolek bubakov.net | 1,024 |
| AS199722 | Sberbank CZ, a.s. | 1,024 |
| AS57707 | Greendata s.r.o. | 768 |
| AS196943 | VISSADO s.r.o. | 768 |
| AS48098 | Valikov Yury Aleksandrovich | 768 |
| AS21205 | ING WholeSale Bank | 768 |
| AS199220 | KrU Stredoceskeho kraje | 768 |
| AS51134 | INTACTO GAMES a.s. | 768 |
| AS203208 | Czech Telecommunication Office | 768 |
| AS57472 | JR-NET, s.r.o. | 768 |
| AS202921 | CC INTERNET s.r.o. | 768 |
| AS206712 | FELDSAM s.r.o. | 768 |
| AS56988 | Mobile & Television Communications LLC | 512 |
| AS49510 | TCV Ltd | 512 |
| AS25321 | GROUP 4 Secure Solutions a.s. | 512 |
| AS201608 | UnArtel s.r.o. | 512 |
| AS51245 | Center of Information Technologies Ltd. | 512 |
| AS51234 | Telecompany Fialka Ltd. | 512 |
| AS198621 | AVAST Software s.r.o. | 512 |
| AS50321 | FOP Reznichenko Sergey Mykolayovich | 512 |
| AS198953 | PricewaterhouseCoopers IT Services, s.r.o. | 512 |
| AS49997 | Piton Ltd | 512 |
| AS60275 | PlzenecNET z. s. | 512 |
| AS196764 | RFI Minprirody Rossii FBGU | 512 |
| AS25553 | TRK Gluhov Ltd. | 512 |
| AS197144 | PP SVS Stream | 512 |
| AS49313 | Seva-Host Ltd | 512 |
| AS51727 | SKODA POWER s.r.o. | 512 |
| AS43866 | Altron a.s. | 512 |
| AS50037 | Server Ltd | 512 |
| AS30928 | ZAO Rubtsovsk | 512 |
| AS51448 | Uralskie Kabelnye Seti Ltd. | 512 |
| AS42174 | Sipcom Ltd. | 512 |
| AS49580 | Monet +, a.s. | 512 |
| AS201934 | Ing. Jan Kolar | 512 |
| AS197698 | D-H-T SYSTEMS s.r.o. | 512 |
| AS49334 | Sergey Krashevich | 512 |
| AS203645 | Jan Ryznar | 512 |
| AS197353 | ING Management Services, s.r.o. | 512 |
| AS203080 | SAP SE | 512 |
| AS196789 | Norfes JSC | 512 |
| AS201228 | Czech metrology institute | 512 |
| AS62083 | Fio banka, a.s. | 512 |
| AS50899 | Roman Bykovskyj | 512 |
| AS198564 | Elcoma s.r.o. | 512 |
| AS202131 | ISP Alliance a.s. | 512 |
| AS197815 | AVAST Software s.r.o. | 512 |
| AS50015 | Oleksandr Butenko | 512 |
| AS198103 | CCS Ceska spolecnost pro platebni karty s.r.o. | 512 |
| AS206785 | Magistrat mesta Brna | 512 |
| AS57919 | Wicom Ltd. | 512 |
| AS198143 | Ceska Posta s.p. | 512 |
| AS200806 | BOHEMIA ENERGY entity s.r.o. | 512 |
| AS49506 | GumsNet Ltd | 512 |
| AS50695 | VLTAVA LABE MEDIA a.s. | 512 |
| AS59681 | Satellit PE | 512 |
| AS196687 | obcanske sdruzeni TRENET | 512 |
| AS50843 | ACUTUS ltd. | 256 |
| AS205724 | T.S.BOHEMIA a.s. | 256 |
| AS56894 | Balezinskie lokalnyie seti, Ltd. | 256 |
| AS33877 | Druzstvo OFX | 256 |
| AS51463 | FAJNCOM s.r.o. | 256 |
| AS61371 | FOP Martsinkevich Vyacheslav Anatolyevich | 256 |
| AS42847 | GlobexBank JSC | 256 |
| AS47924 | Grigory Aleksandrovich Shushpanov | 256 |
| AS48405 | Logica Czech republic s.r.o. | 256 |
| AS62092 | LTV Europe Sicherheitstechnik GmbH i.G. | 256 |
| AS44104 | LCJ s.r.o. | 256 |
| AS197875 | Unipetrol Services s.r.o. | 256 |
| AS206329 | Infor (Barneveld) BV | 256 |
| AS57194 | CHP Koshelnik Sergey Valentinovich | 256 |
| AS199604 | OLOMOUCKY KRAJ | 256 |
| AS51884 | Tera Telecom Ltd | 256 |
| AS20884 | O2 Czech Republic, a.s. | 256 |
| AS201263 | Brno University of Technology | 256 |
| AS202073 | ALTRON Business Solutions, a.s. | 256 |
| AS200646 | BH securities, a.s. | 256 |
| AS56508 | Regionecoproduct-Povolzhie Ltd. | 256 |
| AS8747 | Dial Telecom, a.s. | 256 |
| AS44672 | OncaOnca Ltd. | 256 |
| AS201594 | Czech Telecommunication Office | 256 |
| AS51278 | Ignum s.r.o. | 256 |
| AS48959 | OOO Paladin Invent | 256 |
| AS196762 | ALKOM Security, a.s. | 256 |
| AS15380 | Air Navigation Services of the Czech Republic, state enterprise | 256 |
| AS196849 | Marcela Byrtusova | 256 |
| AS56891 | Ceskomoravska zarucni a rozvojova banka, a.s. | 256 |
| AS28892 | Cesky urad zememericky a katastralni | 256 |
| AS50356 | Camelot Ltd | 256 |
| AS60218 | IT8 - Informacni technologie s.r.o. | 256 |
| AS204113 | Security Information Service | 256 |
| AS200070 | CZ.NIC, z.s.p.o. | 256 |
| AS199806 | DCIT, a.s. | 256 |
| AS57508 | Dempsey Clark ehf | 256 |
| AS61123 | Ekoniva-Tehnika Ltd. | 256 |
| AS15741 | Expiline Ltd. | 256 |
| AS59825 | Green Technology Ltd. | 256 |
| AS203299 | Ivo Hazmuk | 256 |
| AS50097 | IPVOIP s.r.o. | 256 |
| AS49121 | Infinity Telecom, s.r.o. | 256 |
| AS34293 | J.S.tel s.r.o. | 256 |
| AS39453 | KSRZIS | 256 |
| AS57760 | Kinet s.r.o. | 256 |
| AS57572 | Lesta Ltd. | 256 |
| AS20701 | Marias sro | 256 |
| AS9053 | CE Online System s.r.o. | 256 |
| AS56717 | OG Soft s.r.o. | 256 |
| AS197566 | OK-NET s.r.o. | 256 |
| AS59888 | PE Grinkiv Nadia Oliksandrivna | 256 |
| AS202084 | Penta Investments, s.r.o. | 256 |
| AS61192 | PE Lubos Sziller | 256 |
| AS59826 | PE Oleynik Dmitro Oleksandrovich | 256 |
| AS48802 | OOO Povolzhskiy Processingoviy Center | 256 |
| AS61166 | Russian Federal Service for Alcohol Market Regulation | 256 |
| AS198494 | PREGIS, a.s | 256 |
| AS61416 | STATE AUTONOMOUS ESTABLISHMENT OF THE ARKHANGELSK REGION MANAGEMENT OF INFORMATION AND COMMUNICATION TECHNOLOGY OF ARKHANGELSK REGION | 256 |
| AS48890 | SOLVO ltd | 256 |
| AS60724 | Sicuro Services s. r. o. | 256 |
| AS206468 | Treboradice.net z.s. | 256 |
| AS50248 | Vladivostok international airport JSC | 256 |
| AS59552 | VHG Ltd | 256 |
| AS57376 | Vaclav Rosa | 256 |
| AS41591 | Jaroslav Masaryk | 256 |
| AS25093 | Ceska sporitelna a.s. | 256 |
| AS199665 | Hana Juzkova | 256 |
| AS201922 | amccomp s.r.o. | 256 |
| AS199059 | Maurice Ward & Co., s.r.o. | 256 |
| AS50250 | Stavropol Committee for state purchases | 256 |
| AS61985 | Technolink Ltd. | 256 |
| AS51424 | Jiri Sperl | 0 |
| AS202732 | Ing Petr Sramek | 0 |
| AS41711 | FreeTel, s.r.o. | 0 |
| AS205535 | Windyghoul s.r.o. | 0 |
| AS206463 | Pavel Zizka | 0 |
| AS28904 | PODA a.s. | 0 |
| AS202657 | Pavel Jochim | 0 |
| AS201464 | OK-NET s.r.o. | 0 |
| AS43043 | OPSYLON LLC. | 0 |
| AS202733 | OK COMP s.r.o. | 0 |
| AS202066 | Nas NET s.r.o. | 0 |
| AS52027 | Leos Zalio | 0 |
| AS206438 | MX-NET Telekomunikace s.r.o. | 0 |
| AS34371 | Metropolitni s.r.o. | 0 |
| AS199630 | Municipal Office of the City Prague | 0 |
| AS43355 | UPL TELECOM s.r.o. | 0 |
| AS48268 | Inter Fiber s.r.o. | 0 |
| AS28755 | ha-vel internet s.r.o. | 0 |
| AS206287 | LysaFree, z.s. | 0 |
| AS203342 | Ladislav Rudolf | 0 |
| AS203743 | Libor Bohadlo | 0 |
| AS51449 | Kabelova televize Usti nad Orlici, spol. s r. o. | 0 |
| AS202888 | KETNET s.r.o. | 0 |
| AS41456 | KP NETWORK, spol. s r.o. | 0 |
| AS51521 | KmNet s.r.o. | 0 |
| AS198882 | Karlovarsky Kraj | 0 |
| AS60727 | K2 atmitec s.r.o. | 0 |
| AS198510 | Krajska zdravotni, a.s. | 0 |
| AS34302 | Sprintel s.r.o. | 0 |
| AS60647 | Prazska plynarenska,a.s. | 0 |
| AS47122 | inet4 s.r.o. | 0 |
| AS60208 | J&T BANKA, a.s. | 0 |
| AS49972 | IT ADMIRABLE SERVICE LTD | 0 |
| AS202890 | HAKO, spol. s r.o. Jesenik | 0 |
| AS56427 | Michal Hradil | 0 |
| AS201987 | HEXAGEEK s.r.o. | 0 |
| AS41267 | GREPA Networks s.r.o. | 0 |
| AS197246 | Glow Internet s.r.o. | 0 |
| AS206050 | FreeNetwork s.r.o. | 0 |
| AS204051 | FLEA s.r.o. | 0 |
| AS201671 | Emerald Real Group s.r.o. | 0 |
| AS198250 | ELDATA prazska s.r.o. | 0 |
| AS51961 | Doyter Group Limited | 0 |
| AS51105 | CIS TELECOM UK LTD | 0 |
| AS61195 | Peering.cz s.r.o. | 0 |
| AS47681 | RIO Media a.s. | 0 |
| AS21435 | Vodafone Czech Republic a.s. | 0 |
| AS5407 | PODA a.s. | 0 |
| AS197299 | CENTEL s.r.o. | 0 |
| AS201966 | ANAFRA s.r.o. | 0 |
| AS57523 | AMEuroTel s.r.o. | 0 |
| AS8316 | Telenor Czech Republic | 0 |
| AS197713 | MIKROSERVIS v.o.s | 0 |
| AS206384 | Artemis Hosting s.r.o. | 0 |
| AS201732 | Maxicom Technologies s.r.o. | 0 |
| AS39408 | AVI druzstvo | 0 |
| AS3349 | PVT | 0 |
| AS202911 | Diovetech s.r.o. | 0 |
| AS199519 | Cloud4com | 0 |
| AS206591 | Alza.cz a.s. | 0 |
| AS50491 | Planet A, a.s. | 0 |
| AS199176 | Gigalynx s.r.o. | 0 |
| AS5490 | Nextra Czech Republic s.r.o. | 0 |
| AS49018 | Alphatech Resource Holdings s.r.o. | 0 |
| AS201761 | ISP Alliance a.s. | 0 |
| AS29274 | Obcanske sdruzeni GAVANET | 0 |
| AS34692 | Freebone s.r.o. | 0 |
| AS6721 | The Terminal Bar | 0 |
| AS2819 | T-Mobile Czech Republic a.s. | 0 |
| AS197026 | Galevi s.r.o. | 0 |
| AS198587 | HBQ a.s. | 0 |
| AS199471 | TeleNet Taishet Ltd. | 0 |
| AS59969 | FOP Kameristov Andrey Evgenovuch | 0 |
| AS199023 | Aiming Invest s.r.o. | 0 |
| AS21383 | PE Alexander Yakimov | 0 |
| AS196804 | Info-Media LTD | 0 |
| AS200034 | EZE A.S. | 0 |
| AS51902 | Web4Soft Internet s.r.o. | 0 |
| AS205885 | Navmatix s.r.o. | 0 |
| AS21142 | T-Mobile Czech Republic a.s. | 0 |
| AS25036 | Internethome, s.r.o. | 0 |
| AS42969 | G4S Cash Solutions (CZ), a.s. | 0 |
| AS50714 | Closed Joint Stock Company TransTeleCom | 0 |
| AS199180 | ALGETI s.r.o. | 0 |
| AS197286 | ASJDMNET David Jarolimek | 0 |
| AS60143 | Brno University of Technology | 0 |
| AS15485 | T-Mobile Czech Republic a.s. | 0 |
| AS199607 | ASSICURO PCO SICURO s.r.o. | 0 |
| AS44910 | FH Miraj-94 | 0 |
| AS205549 | FixPro,z.s. | 0 |
| AS41824 | Internethome, s.r.o. | 0 |
| AS51154 | Internethome, s.r.o. | 0 |
| AS49418 | Domashnie Seti Ltd | 0 |
| AS34070 | DATin internet s.r.o. | 0 |
| AS203072 | DomaTV s.r.o. | 0 |
| AS59745 | VSHosting s.r.o. | 0 |
| AS206613 | Tipsport.net a.s. | 0 |
| AS206321 | STARTECH spol. s r.o. | 0 |
| AS29525 | Virtualmaster, s.r.o. | 0 |
| AS33919 | ServerNow s.r.o. | 0 |
| AS49459 | Sigma plus Ltd. | 0 |
| AS3234 | Parliament of the Czech Republic | 0 |
| AS198027 | VITKOVICE IT SOLUTIONS a.s. | 0 |
| AS199019 | PPG DECO CZECH a.s. | 0 |
| AS57780 | VISSADO s.r.o. | 0 |
| AS51801 | Nano.cz s.r.o. | 0 |
| AS3160 | Lumius, spol. s r.o. | 0 |
| AS201187 | Whois protection s.r.o. | 0 |
| AS51403 | FOP Ljashenko Igor Ivanovich | 0 |
| AS204247 | Jiri Dolezal | 0 |
| AS197059 | HOTNET s.r.o. | 0 |
| AS49671 | FRIENDHOSTING L.P. | 0 |
| AS196952 | BEZVANET s.r.o. | 0 |
| AS206832 | Yes Networks Unlimited Ltd | 0 |
| AS56516 | Fayber-M Ltd. | 0 |
| AS196916 | BusinessCom CZ spol. s r.o. | 0 |
| AS197412 | Vladislav Heczko PE | 0 |
| AS196746 | Speednet, s.r.o. | 0 |
| AS15494 | BT Limited, organizacni slozka | 0 |
| AS49833 | Alexandr Y Potkin | 0 |
| AS47200 | NIX.CZ z.s.p.o. | 0 |
| AS24828 | UPC Ceska Republica, s.r.o. | 0 |
| AS29113 | UPC Ceska Republica, s.r.o. | 0 |
| AS196965 | TechCom s.r.o. | 0 |
| AS49417 | FOP Tikhon S. Zyuzikov | 0 |
| AS15512 | UPC Ceska Republica, s.r.o. | 0 |
| AS201007 | Tesco Stores CR a.s. | 0 |
| AS57325 | The Department of the State Security Service at the Ministry of Home Affairs of Ukraine | 0 |
| AS204214 | S.I.C. spol. s r.o. | 0 |
| AS207048 | SPANET s.r.o. | 0 |
Details
Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.
This page shows ASNs for Czech Republic. See the global ASN report for network, IP address information and whois details for other countries.