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. | 1,588,480 |
| AS5588 | T-Mobile Czech Republic a.s. | 1,364,480 |
| AS2852 | CESNET z.s.p.o. | 914,432 |
| AS2819 | T-Mobile Czech Republic a.s. | 636,160 |
| AS44546 | ALFA TELECOM s.r.o. | 526,336 |
| AS28725 | Ceska Telekomunikacni Infrastruktura a.s | 354,560 |
| AS13036 | T-Mobile Czech Republic a.s. | 319,488 |
| AS30764 | PODA a.s. | 221,184 |
| AS5578 | BENESTRA, s.r.o. | 214,784 |
| AS29113 | UPC Ceska Republica, s.r.o. | 199,168 |
| AS25248 | RADIOKOMUNIKACE a.s. | 175,360 |
| AS16019 | Vodafone Czech Republic a.s. | 174,592 |
| AS6706 | Dial Telecom, a.s. | 139,264 |
| AS25512 | CD-Telematika a.s. | 121,344 |
| AS16246 | RIO Media a.s. | 114,688 |
| AS15425 | COMA s.r.o. | 111,616 |
| AS9080 | Ipex Ltd. | 102,400 |
| AS6740 | TS-Data s.r.o. | 91,136 |
| AS2571 | DHL Information Services (Europe) s.r.o | 90,368 |
| AS15685 | Casablanca INT | 83,456 |
| AS5407 | PODA a.s. | 73,728 |
| AS12767 | T-Mobile Czech Republic a.s. | 71,424 |
| AS24971 | Master Internet s.r.o. | 67,584 |
| AS31246 | SMART Comp. a.s. | 67,584 |
| AS197451 | Brno University of Technology | 67,072 |
| AS39906 | CoProSys a.s. | 60,672 |
| AS28851 | Fortech s.r.o. | 58,368 |
| AS12570 | itself s.r.o. | 57,856 |
| AS15935 | ha-vel internet s.r.o. | 52,224 |
| AS44489 | STARNET, s.r.o. | 50,688 |
| AS24806 | INTERNET CZ, a.s. | 45,568 |
| AS47965 | Signalhorn Trusted Networks GmbH | 44,800 |
| AS41824 | O2 Czech Republic, a.s. | 36,864 |
| AS25424 | InterneXt 2000, s.r.o. | 33,792 |
| AS41046 | Nej.cz s.r.o. | 32,768 |
| AS42908 | Nordic Telecom s.r.o | 32,768 |
| AS39392 | SuperNetwork s.r.o. | 32,512 |
| AS34093 | Suntel Net s.r.o. | 28,928 |
| AS21435 | Vodafone Czech Republic a.s. | 25,088 |
| AS43708 | METRONET s.r.o. | 24,064 |
| AS47232 | ISP Alliance a.s. | 21,504 |
| AS29134 | Ignum s.r.o. | 20,736 |
| AS43541 | VSHosting s.r.o. | 19,712 |
| AS39791 | Telco Pro Services, a. s. | 19,712 |
| AS34040 | TTNET s.r.o. | 19,456 |
| AS8251 | FreeTel, s.r.o. | 17,408 |
| AS61296 | TechCom s.r.o. | 17,408 |
| AS49985 | IP4ISP z.s.p.o | 17,408 |
| AS49931 | SITKOM spol. s r.o. | 17,408 |
| AS47681 | RIO Media a.s. | 17,408 |
| AS35236 | 2 connect a.s. | 16,640 |
| AS196822 | SELECT SYSTEM, s.r.o. | 16,384 |
| AS41267 | GREPA Networks s.r.o. | 16,384 |
| AS50022 | Kristelecom Ltd. | 16,384 |
| AS197197 | M.NET STUDENKA s. r. o. | 16,384 |
| AS28972 | M-SOFT, spol. s r.o. | 16,384 |
| AS196735 | JON.CZ s.r.o. | 16,384 |
| AS51351 | LTD Objedinennaja Setevaja Kompanija | 16,128 |
| AS20723 | AVONET, s.r.o. | 15,360 |
| AS42306 | Edera Group a.s. | 14,336 |
| AS21430 | WIA spol. s.r.o. | 14,080 |
| AS35592 | Coolhousing s.r.o. | 13,568 |
| AS207187 | TKR Jasek, s.r.o. | 13,312 |
| AS34955 | Martin Vicenik | 13,056 |
| AS24641 | FASTER CZ spol. s r.o. | 12,800 |
| AS197013 | Sprintel s.r.o. | 12,800 |
| AS15614 | Dragon Internet a.s. | 12,288 |
| AS48474 | Suntel Net s.r.o. | 12,288 |
| AS25036 | O2 Czech Republic, a.s. | 12,288 |
| AS34315 | Dial Telecom, a.s. | 12,288 |
| AS35613 | NetDataComm, s.r.o. | 12,032 |
| AS198171 | HOSTING90 systems s.r.o. | 11,776 |
| AS197019 | WEDOS Internet, a.s. | 11,264 |
| AS43542 | OptoNet Communication, spol. s.r.o. | 11,264 |
| AS196845 | OMEGA tech s.r.o. | 11,264 |
| AS50698 | TETA s.r.o. | 11,264 |
| AS198605 | AVAST Software s.r.o. | 11,008 |
| AS35214 | Suntel Net s.r.o. | 10,240 |
| AS50241 | UnitTelecom Ltd | 10,240 |
| AS49106 | Opticom Group CJSC | 10,240 |
| AS35361 | GREPA Networks s.r.o. | 10,240 |
| AS34080 | MIRAMO spol. s.r.o. | 10,240 |
| AS47114 | SychrovNET s.r.o | 10,240 |
| AS47834 | SOFTEX NCP, s.r.o. | 10,240 |
| AS43070 | JAW.cz s.r.o. | 9,728 |
| AS49101 | KABELOVA TELEVIZE CZ s.r.o. | 9,216 |
| AS48574 | Planet A, a.s. | 9,216 |
| AS49889 | Crystal Telecom Ltd | 8,448 |
| AS42000 | Futruy s.r.o. | 8,448 |
| AS203072 | DomaTV s.r.o. | 8,448 |
| AS202237 | Wic-Net, s.r.o. | 8,192 |
| AS62160 | Yes Networks Unlimited Ltd | 8,192 |
| AS57564 | Suntel Net s.r.o. | 8,192 |
| AS41088 | N-SYS s.r.o. | 8,192 |
| AS51731 | GTT a.s. | 8,192 |
| AS51891 | GSP ltd. | 8,192 |
| AS47493 | WMS s.r.o. | 8,192 |
| AS15731 | Reliable Communications s.r.o. | 8,192 |
| AS25234 | ACTIVE 24 | 8,192 |
| AS57800 | Cadr-TV LLE TVRC | 8,192 |
| AS34302 | Sprintel s.r.o. | 8,192 |
| AS198002 | FDLnet.CZ, s.r.o. | 8,192 |
| AS57069 | Dempsey and Clark s.r.o. | 8,192 |
| AS197798 | Net-Connect s.r.o. | 8,192 |
| AS56566 | SATT a.s. | 8,192 |
| AS8913 | Mopos Communications A.S. | 8,192 |
| AS33943 | Cesky Bezdrat, s.r.o. | 8,192 |
| AS43507 | RETE internet, s.r.o. | 8,192 |
| AS43709 | SilesNet s.r.o. | 8,192 |
| AS201476 | ISP Alliance a.s. | 7,936 |
| AS198668 | Tlapnet s.r.o. | 7,424 |
| AS8518 | RFE/RL, Inc., organizacni slozka | 7,424 |
| AS48926 | Pe3ny Net s.r.o. | 7,168 |
| AS33883 | TRIOPTIMUM s.r.o. | 7,168 |
| AS39235 | Suntel Net s.r.o. | 7,168 |
| AS35046 | OMEGA plus Chrudim s.r.o. | 7,168 |
| AS25192 | CZ.NIC, z.s.p.o. | 6,400 |
| AS29583 | Spinoco Czech Republic, a.s. | 6,400 |
| AS43413 | NEW TELEKOM, spol. s r.o. | 6,144 |
| AS34222 | ZONER software, a.s | 6,144 |
| AS51428 | IRONNET Ltd. | 6,144 |
| AS59479 | GEMNET s.r.o. | 6,144 |
| AS39761 | ABAK, Ltd. | 6,144 |
| AS200918 | Pavel Zizka | 6,144 |
| AS207198 | Kabelova televize Koprivnice, s.r.o. | 6,144 |
| AS28905 | BECO Link,spol.s.r.o. | 6,144 |
| AS198813 | SychrovNET s.r.o | 6,144 |
| AS197307 | Core4Net, s.r.o. | 6,144 |
| AS50025 | Net Television Ltd | 6,144 |
| AS44065 | NETAIR s.r.o. | 6,144 |
| AS204860 | NetX R&D z.s. | 5,632 |
| AS31349 | a-net Liberec s.r.o. | 5,376 |
| AS207242 | NOEL, s.r.o. | 5,120 |
| AS196843 | KHnet.info, z.s. | 5,120 |
| AS48661 | AIRWAYNET, a.s. | 5,120 |
| AS49767 | INTERNET Pb, spol. s r.o. | 5,120 |
| AS44712 | eHAMnet, s.r.o. | 5,120 |
| AS39817 | OvaNet, a.s. | 5,120 |
| AS48494 | BUKO LTD | 5,120 |
| AS197296 | Maxtel s.r.o. | 5,120 |
| AS62178 | MASTER IT Technologies, a.s. | 5,120 |
| AS49025 | PRO-ZETA a.s. | 5,120 |
| AS30877 | Ariadna-Link CJSC | 5,120 |
| AS41670 | hkfree.org z.s. | 5,120 |
| AS198403 | Matrigo s.r.o. | 5,120 |
| AS202895 | TFnet s.r.o. | 5,120 |
| AS39790 | Web4U s.r.o. | 5,120 |
| AS50825 | UVT Internet s.r.o. | 5,120 |
| AS42477 | Cerberos s.r.o. | 5,120 |
| AS42189 | Druzstvo EUROSIGNAL | 5,120 |
| AS202618 | Rychly drat, s.r.o. | 5,120 |
| AS52092 | Alf servis, s.r.o. | 4,608 |
| AS43203 | TELCONET s.r.o. | 4,352 |
| AS60592 | Gransy s.r.o. | 4,352 |
| AS56360 | TRINITY CZECH REPUBLIC, s.r.o. | 4,096 |
| AS39904 | MERIT GROUP a.s | 4,096 |
| AS41453 | SITEL spol. s r.o. | 4,096 |
| AS41711 | FreeTel, s.r.o. | 4,096 |
| AS57287 | OtavaNet s.r.o. | 4,096 |
| AS57279 | Sauron CZ s.r.o. | 4,096 |
| AS57188 | ORKA systems, s.r.o. | 4,096 |
| AS196782 | Marek Smutny | 4,096 |
| AS56456 | C2NET s.r.o. | 4,096 |
| AS56450 | Alberon Letohrad s.r.o | 4,096 |
| AS56442 | Lubos Hutar | 4,096 |
| AS198991 | CET 21 spol. s.r.o. | 4,096 |
| AS57294 | Internet Expert s.r.o. | 4,096 |
| AS52115 | JaroNet s.r.o. | 4,096 |
| AS197029 | LAM plus s.r.o. | 4,096 |
| AS51968 | NEOS v.o.s. | 4,096 |
| AS201730 | DataSpring s.r.o. | 4,096 |
| AS51800 | FIBER Network s.r.o. | 4,096 |
| AS62099 | JM-Net, z.s. | 4,096 |
| AS57399 | MONEX s.r.o. | 4,096 |
| AS60931 | LAN-Service Ltd. | 4,096 |
| AS29086 | GiTy, a.s. | 4,096 |
| AS197550 | Internet4you.cz, spol. s r.o. | 4,096 |
| AS204064 | TaNET West s.r.o. | 4,096 |
| AS49890 | ABLE agency, s.r.o. | 4,096 |
| AS197846 | Radovan Ochvat trading as SAO Computers | 4,096 |
| AS15494 | BT Limited, organizacni slozka | 4,096 |
| AS48780 | OLTELECOM JSC | 4,096 |
| AS48417 | ITS akciova spolecnost | 4,096 |
| AS44070 | MCnet, s.r.o. | 4,096 |
| AS198420 | CMS Consulting s.r.o. | 4,096 |
| AS47868 | SUPRO, spol. s r.o. | 4,096 |
| AS198500 | Masarykova univerzita - Ustav vypocetni techniky | 4,096 |
| AS47269 | Core4Net, s.r.o. | 4,096 |
| AS57496 | AIRESS CESKO s.r.o. | 4,096 |
| AS47122 | inet4 s.r.o. | 4,096 |
| AS21045 | QNET CZ s.r.o. | 4,096 |
| AS20884 | O2 Czech Republic, a.s. | 3,584 |
| AS200678 | ISP Alliance a.s. | 3,328 |
| AS47110 | Cloud4com, a.s. | 3,328 |
| AS43614 | Economia a.s. | 3,072 |
| AS47727 | Warnet.cz s.r.o. | 3,072 |
| AS43037 | Seznam.cz, a.s. | 3,072 |
| AS34047 | Bystrov Dmitriy Sergeevich | 3,072 |
| AS197046 | FIXnet s.r.o. | 3,072 |
| AS47317 | Web4ce, s.r.o. | 3,072 |
| AS48364 | Radim Pytela - AC Vyskov | 3,072 |
| AS57077 | AB-NET s.r.o. | 3,072 |
| AS39896 | Angel Systems s.r.o. | 3,072 |
| AS197879 | HelaPC s.r.o. | 3,072 |
| AS200059 | AIRWEB, spol. s r.o. | 3,072 |
| AS56973 | VITKOVICE IT SOLUTIONS a.s. | 3,072 |
| AS49320 | Golitsyno Telecom Ltd | 3,072 |
| AS44002 | Sys-DataCom s.r.o. | 3,072 |
| AS206548 | Tlap s.r.o. | 3,072 |
| AS39736 | ICT Support, s.r.o. | 3,072 |
| AS48298 | MINISTERSTVO VNITRA CR | 3,072 |
| AS44430 | MaRcom-Eko s.r.o. | 2,816 |
| AS198167 | Apptocloud.com s.r.o. | 2,816 |
| AS47909 | Baikal-Telecom Ltd. | 2,560 |
| AS198977 | UnArtel s.r.o. | 2,560 |
| AS44500 | Vlasimnet s.r.o. | 2,560 |
| AS52058 | Michal Najman | 2,560 |
| AS51234 | Telecompany Fialka Ltd. | 2,560 |
| AS50398 | Fast Communication, s.r.o. | 2,560 |
| AS197206 | BusinessCom CZ spol. s r.o. | 2,304 |
| AS50301 | BrazdimNET s.r.o. | 2,304 |
| AS48960 | AQUA,a.s. | 2,304 |
| AS34049 | H-data, spol. s r.o. | 2,304 |
| AS6881 | NIX.CZ z.s.p.o. | 2,304 |
| AS34911 | ELDATA prazska s.r.o. | 2,304 |
| AS47949 | gsnet.cz s.r.o. | 2,304 |
| AS201811 | Austole s.r.o. | 2,304 |
| AS43895 | Zentiva k.s. | 2,048 |
| AS52154 | mjanik.net s.r.o. | 2,048 |
| AS52130 | LiveSport s.r.o. | 2,048 |
| AS57798 | IT-Net ltd. | 2,048 |
| AS52084 | ATL Obchodni s.r.o. | 2,048 |
| AS47767 | Regionalni centrum Olomouc s.r.o. | 2,048 |
| AS50971 | JHComp s.r.o. | 2,048 |
| AS44984 | Fortion Networks, s.r.o. | 2,048 |
| AS44424 | Internet Mall, a.s. | 2,048 |
| AS206818 | CLABOR TECH SOLUTION LLC | 2,048 |
| AS57566 | Wircom s.r.o. | 2,048 |
| AS210306 | ADV Computers s.r.o. | 2,048 |
| AS197277 | State Institute for Drug Control | 2,048 |
| AS197218 | PP Dmutrashko Evgeny Vitalievich | 2,048 |
| AS61425 | Mlada fronta a.s. | 2,048 |
| AS51655 | Ilim Telecom Ltd. | 2,048 |
| AS51525 | Informacionnuye technologiyi Ltd | 2,048 |
| AS51524 | Ales Tesacek | 2,048 |
| AS201654 | Web4Soft Internet s.r.o. | 2,048 |
| AS51400 | SPOJE.NET s.r.o. | 2,048 |
| AS201648 | Plzensky kraj | 2,048 |
| AS50975 | AVX Czech republic s.r.o | 2,048 |
| AS52029 | Ing. Petr Lukes | 2,048 |
| AS51210 | KRAXNET s.r.o. | 2,048 |
| AS21241 | Global Payments Europe, s.r.o. | 2,048 |
| AS40964 | ASTELNET s.r.o. | 2,048 |
| AS43757 | ICZ a.s. | 2,048 |
| AS204165 | Cznet s.r.o. | 2,048 |
| AS197565 | Golden activity s.r.o. | 2,048 |
| AS196861 | DIGITAL ACTION s.r.o. | 2,048 |
| AS50163 | Altnet s.r.o. | 2,048 |
| AS196873 | Netlancers s.r.o. | 2,048 |
| AS197542 | Jan Saulich | 2,048 |
| AS60529 | Miroslav Klement | 2,048 |
| AS196815 | LAN servis s.r.o. | 2,048 |
| AS56624 | Petr Kadanik | 2,048 |
| AS200114 | PRO-COMUNICATION s.r.o | 2,048 |
| AS31461 | Moravia IT s.r.o. | 2,048 |
| AS197442 | ZENIT-servis s.r.o. | 2,048 |
| AS59970 | AmigoNet s.r.o. | 2,048 |
| AS47131 | PH, spol. s r. o. | 2,048 |
| AS59959 | SferiaNET.cz s.r.o. | 2,048 |
| AS204992 | Netragy, LLC | 2,048 |
| AS197393 | Ladislav Rudolf | 2,048 |
| AS197083 | K2 atmitec s.r.o. | 2,048 |
| AS50348 | KVADOS, a.s. | 2,048 |
| AS62011 | UNHfree.net z.s. | 2,048 |
| AS41030 | Jaroslav Novotny | 2,048 |
| AS198031 | Trustica s.r.o. | 2,048 |
| AS196684 | VITALATIV, s.r.o. | 2,048 |
| AS57823 | INERCOM, s.r.o. | 2,048 |
| AS199101 | Suntel Net s.r.o. | 2,048 |
| AS57288 | StaMPi, spol. s r.o. | 2,048 |
| AS48451 | Prazska energetika, a.s. | 2,048 |
| AS198161 | Sokolovska uhelna, pravni nastupce, a.s. | 2,048 |
| AS38952 | MAFRA, a.s. | 2,048 |
| AS50442 | Multi-Net plus Ltd | 2,048 |
| AS203165 | Statni pokladna Centrum sdilenych sluzeb, s.p. | 2,048 |
| AS52176 | TTC TELEKOMUNIKACE s.r.o. | 2,048 |
| AS20609 | KAZA.cz s.r.o. | 2,048 |
| AS39408 | AVI druzstvo | 2,048 |
| AS198248 | Richard Filip | 2,048 |
| AS198282 | SAT - AN CableNet SE | 2,048 |
| AS42078 | XOTEL SIA | 2,048 |
| AS206420 | KABEL servis Praha spol. s r.o. | 2,048 |
| AS206429 | CORSAT s.r.o | 2,048 |
| AS47913 | Cerberos s.r.o. | 2,048 |
| AS200844 | STUDENT AGENCY k.s. | 1,792 |
| AS41359 | Telefonzentrale s.r.o. | 1,792 |
| AS202657 | Pavel Jochim | 1,792 |
| AS51134 | INTACTO GAMES a.s. | 1,792 |
| AS202921 | CC INTERNET s.r.o. | 1,792 |
| AS206334 | AVAST Software s.r.o. | 1,792 |
| AS62403 | Disk Group Ltd. | 1,536 |
| AS197694 | Municipal Office of the City Prague | 1,536 |
| AS196653 | BEST-NET s.r.o. | 1,536 |
| AS58239 | hanspaul-city.net s.r.o. | 1,536 |
| AS6679 | Skadi Telecom JSC | 1,536 |
| AS48091 | Kraj Vysocina | 1,536 |
| AS12984 | PilsFree, z. s. | 1,536 |
| AS42995 | Geotelecom Ltd. | 1,536 |
| AS199803 | ComSource s.r.o. | 1,536 |
| AS197376 | AUTOCONT a.s. | 1,280 |
| AS197920 | SKODA ICT s.r.o. | 1,280 |
| AS49013 | Fusion Media, s.r.o. | 1,280 |
| AS35420 | Perspektiva Ltd. | 1,280 |
| AS21205 | ING WholeSale Bank | 1,280 |
| AS44910 | FH Miraj-94 | 1,280 |
| AS41779 | LajsiNET s.r.o. | 1,280 |
| AS198725 | Ultimum Technologies s.r.o. | 1,280 |
| AS51211 | PE Rulev Dmitriy Alexandrovich | 1,280 |
| AS204332 | TKC system s.r.o. | 1,280 |
| AS49359 | Dmitry Kozhushko | 1,280 |
| AS43129 | Smileinvest LTD | 1,280 |
| AS12344 | CZECH IT CLUSTER, druzstvo | 1,024 |
| AS13199 | Jaroslav Doubrava | 1,024 |
| AS196916 | BusinessCom CZ spol. s r.o. | 1,024 |
| AS196952 | BEZVANET s.r.o. | 1,024 |
| AS196978 | Milos Tuma | 1,024 |
| AS197412 | Vladislav Heczko PE | 1,024 |
| AS197444 | Vlastimil Drazsky | 1,024 |
| AS197575 | CHP "Mediana-Servis" | 1,024 |
| AS197786 | Telefonnyie seti Ltd. | 1,024 |
| AS197895 | ONYX engineering, spol. s r.o. | 1,024 |
| AS198101 | Kooperativa pojistovna, a.s., Vienna Insurance Group | 1,024 |
| AS198212 | "TeleNet Sayansk" LLC | 1,024 |
| AS198284 | Mesto Velka Bystrice | 1,024 |
| AS198346 | NETFORMS s.r.o. | 1,024 |
| AS198657 | GOLDWARE s.r.o. | 1,024 |
| AS198814 | ALPHA StylSoft, s.r.o. | 1,024 |
| AS199298 | Jan Stetina | 1,024 |
| AS199350 | Ministerstvo financi | 1,024 |
| AS199405 | Oslavany.NET | 1,024 |
| AS199490 | INTERCONNECT s.r.o. | 1,024 |
| AS199600 | Virtis s.r.o. | 1,024 |
| AS199657 | TNtech, s.r.o. | 1,024 |
| AS199711 | National Cyber and Information Security Authority | 1,024 |
| AS199722 | Sberbank CZ, a.s. | 1,024 |
| AS200155 | Technologicke centrum Pisek s.r.o. | 1,024 |
| AS200449 | Qrator Labs CZ s.r.o. | 1,024 |
| AS200474 | CRFreeNet, z.s. | 1,024 |
| AS200600 | Seznam.cz datova centra, s.r.o. | 1,024 |
| AS200635 | pragmatel s.r.o. | 1,024 |
| AS200717 | STEN.cz s.r.o. | 1,024 |
| AS200828 | TERMS a.s. | 1,024 |
| AS200848 | Miroslav Holienka | 1,024 |
| AS200874 | Liberecky kraj | 1,024 |
| AS200985 | BOK*Net, z.s. | 1,024 |
| AS201116 | Vybezek.NET s.r.o. | 1,024 |
| AS201163 | Komercni banka, a.s. | 1,024 |
| AS201457 | Pojistovna Ceske sporitelny, a.s., Vienna Insurance Group | 1,024 |
| AS201533 | United Networks SE | 1,024 |
| AS201548 | Milan Zelenka | 1,024 |
| AS201559 | United Networks SE | 1,024 |
| AS201625 | United Networks SE | 1,024 |
| AS201727 | Spolek bubakov.net | 1,024 |
| AS201926 | Futurenet ISP s.r.o. | 1,024 |
| AS202551 | INERA.CZ s.r.o. | 1,024 |
| AS202556 | Spolek Krivonet | 1,024 |
| AS202605 | EMPECOM, s.r.o. | 1,024 |
| AS202682 | G2 server CZ s.r.o. | 1,024 |
| AS202719 | Pranet s.r.o. | 1,024 |
| AS202774 | COMTEX s.r.o. | 1,024 |
| AS202872 | KME, spol. s r. o. | 1,024 |
| AS202874 | Zlinsky Kraj | 1,024 |
| AS202877 | VEJNET.CZ s.r.o. | 1,024 |
| AS202979 | NGA Services, spol. s r.o. | 1,024 |
| AS203018 | PAMICO CZECH, s.r.o. | 1,024 |
| AS203328 | PVfree.net, z. s. | 1,024 |
| AS203365 | Optet network, s. r. o. | 1,024 |
| AS203376 | Mailkit s.r.o. | 1,024 |
| AS203385 | Pernix systems s.r.o. | 1,024 |
| AS203411 | FORTUNA GAME a.s. | 1,024 |
| AS203450 | LOGICPRIM s.r.o. | 1,024 |
| AS203550 | i2net cz s.r.o. | 1,024 |
| AS204007 | Kleissner Investments s.r.o. | 1,024 |
| AS204351 | NAM system, a.s. | 1,024 |
| AS204383 | SPCom s.r.o. | 1,024 |
| AS204394 | Cortex, a.s. | 1,024 |
| AS204409 | Komunikacni stroje s.r.o. | 1,024 |
| AS204567 | PCKBnet s.r.o. | 1,024 |
| AS204570 | Vratislav Kriz | 1,024 |
| AS204772 | Reditelstvi silnic a dalnic CR | 1,024 |
| AS204886 | Metropolitni sit Humpolec spol. s r.o. | 1,024 |
| AS204943 | NTV cable s.r.o. | 1,024 |
| AS204949 | Ceskomoravske informacni systemy s.r.o. | 1,024 |
| AS205002 | CUBESOL, s.r.o. | 1,024 |
| AS205044 | Pro-Line comp s.r.o. | 1,024 |
| AS205234 | Brnenske komunikace a.s. | 1,024 |
| AS205300 | Sunfox s.r.o. | 1,024 |
| AS205345 | HoralNET s.r.o. | 1,024 |
| AS205400 | VIVO CONNECTION spol. s r.o. | 1,024 |
| AS205535 | Windyghoul s.r.o. | 1,024 |
| AS205619 | Jiri Chalabala | 1,024 |
| AS205653 | Jumpshot s.r.o. | 1,024 |
| AS205863 | Stepan Pokorny | 1,024 |
| AS205968 | GeneralNet s.r.o. | 1,024 |
| AS206142 | Internet TV, Inc. | 1,024 |
| AS206177 | SitePark s.r.o. | 1,024 |
| AS206212 | KCG spol. s.r.o. | 1,024 |
| AS206270 | TrojanoviceNET s.r.o. | 1,024 |
| AS206287 | LysaFree, z.s. | 1,024 |
| AS206344 | AUKRO s.r.o. | 1,024 |
| AS20643 | PilsFree servis, s.r.o. | 1,024 |
| AS206438 | MX-NET Telekomunikace s.r.o. | 1,024 |
| AS206566 | savana.cz s.r.o | 1,024 |
| AS206569 | TEORA s.r.o. | 1,024 |
| AS206784 | Internet Praha Josefov s.r.o. | 1,024 |
| AS206951 | BMB-Green s.r.o. | 1,024 |
| AS207015 | Position s.r.o. | 1,024 |
| AS20708 | SKODA AUTO a.s. | 1,024 |
| AS207153 | Stream-iT, s.r.o. | 1,024 |
| AS210061 | Ladislav Kepl | 1,024 |
| AS210115 | Artemis hosting s.r.o. | 1,024 |
| AS25238 | MONETA Money Bank, a.s. | 1,024 |
| AS29504 | Freenet Liberec, z.s. | 1,024 |
| AS29525 | Virtualmaster, s.r.o. | 1,024 |
| AS30738 | NetArt Group s.r.o. | 1,024 |
| AS31559 | Zdenek Soucek | 1,024 |
| AS35096 | Alef Nula a.s. | 1,024 |
| AS39307 | Digital Communications Ltd. | 1,024 |
| AS42269 | Foton Ltd | 1,024 |
| AS43130 | NKL LLC | 1,024 |
| AS44770 | Savvy s.r.o. | 1,024 |
| AS47749 | ORIFLAME SOFTWARE s.r.o. | 1,024 |
| AS48085 | DNIPRO-Techcenter Ltd | 1,024 |
| AS48602 | Connect plus s.r.o. | 1,024 |
| AS49142 | HBO Europe s.r.o. | 1,024 |
| AS49573 | JimmyNet s.r.o. | 1,024 |
| AS49839 | MKS Ltd. | 1,024 |
| AS50415 | Ahosting a.s. | 1,024 |
| AS50497 | Orlicom Ltd | 1,024 |
| AS50784 | Intraweb servis s.r.o. | 1,024 |
| AS50980 | E3.cz, sro | 1,024 |
| AS51025 | VSHosting s.r.o. | 1,024 |
| AS51371 | Ashtarak-Elit Ltd. | 1,024 |
| AS51382 | Ing. Leos Janouch | 1,024 |
| AS51744 | Non-profit organization Jablonka.cz | 1,024 |
| AS56344 | Lukas Vacek | 1,024 |
| AS56562 | Telecom Plus Company Ltd. | 1,024 |
| AS56827 | mirnet s.r.o. | 1,024 |
| AS56936 | Mbit City Ltd. | 1,024 |
| AS57007 | NITEX ISP s.r.o. | 1,024 |
| AS57081 | Scarfbot Technologies, s.r.o. | 1,024 |
| AS57158 | MELVI s.r.o. | 1,024 |
| AS57191 | LLC IT Business | 1,024 |
| AS57560 | XLNET s.r.o. | 1,024 |
| AS57707 | Greendata s.r.o. | 1,024 |
| AS57779 | ICTIS.CZ s.r.o. | 1,024 |
| AS57904 | Vevynet s.r.o. | 1,024 |
| AS58220 | Tomas Budai | 1,024 |
| AS59664 | Opton s.r.o. | 1,024 |
| AS59871 | Heureka Shopping s.r.o | 1,024 |
| AS59925 | Seonet Multimedia s.r.o. | 1,024 |
| AS59984 | KLFREE NETWORKS, s.r.o. | 1,024 |
| AS60086 | Valvera s.r.o. | 1,024 |
| AS60266 | Home Credit International a.s. | 1,024 |
| AS61110 | Sprava informacnich technologii mesta Plzne, p.o. | 1,024 |
| AS61169 | SporkNeT s.r.o. | 1,024 |
| AS61981 | Mach3net s.r.o. | 1,024 |
| AS62102 | Informacni sluzby energetika a.s. | 1,024 |
| AS62159 | Happy Technik s.r.o. | 1,024 |
| AS62176 | EZE A.S. | 1,024 |
| AS62405 | Brouzdal, s.r.o. | 1,024 |
| AS8646 | cloudinfrastack, s.r.o. | 1,024 |
| AS34293 | J.S.tel s.r.o. | 768 |
| AS203208 | Czech Telecommunication Office | 768 |
| AS48098 | Valikov Yury Aleksandrovich | 768 |
| AS59888 | PE Grinkiv Nadia Oliksandrivna | 768 |
| AS25553 | TRK Gluhov Ltd. | 768 |
| AS196943 | VISSADO s.r.o. | 768 |
| AS206712 | FELDSAM s.r.o. | 768 |
| AS57472 | JR-NET, s.r.o. | 768 |
| AS199220 | KrU Stredoceskeho kraje | 768 |
| AS51278 | Ignum s.r.o. | 768 |
| AS57919 | Wicom Ltd. | 512 |
| AS206591 | Alza.cz a.s. | 512 |
| AS60275 | PlzenecNET z. s. | 512 |
| AS205719 | Data & File Processing s.r.o. | 512 |
| AS197698 | D-H-T SYSTEMS s.r.o. | 512 |
| AS204668 | ASTANA Technologies s.r.o. | 512 |
| AS49121 | Infinity Telecom, s.r.o. | 512 |
| AS49313 | Seva-Host Ltd | 512 |
| AS49334 | Sergey Krashevich | 512 |
| AS49506 | GumsNet Ltd | 512 |
| AS49510 | TCV Ltd | 512 |
| AS49580 | Monet +, a.s. | 512 |
| AS49997 | Piton Ltd | 512 |
| AS50015 | Oleksandr Butenko | 512 |
| AS50037 | Server Ltd | 512 |
| AS203645 | Jan Ryznar | 512 |
| AS50321 | FOP "Reznichenko Sergey Mykolayovich" | 512 |
| AS197353 | NN Management Services, s.r.o. | 512 |
| AS50695 | VLTAVA LABE MEDIA a.s. | 512 |
| AS203080 | SAP SE | 512 |
| AS196687 | obcanske sdruzeni TRENET | 512 |
| AS50899 | Roman Bykovskyj | 512 |
| AS202131 | ISP Alliance a.s. | 512 |
| AS51245 | Center of Information Technologies Ltd. | 512 |
| AS51448 | Uralskie Kabelnye Seti Ltd. | 512 |
| AS201934 | Satan s.r.o. | 512 |
| AS201931 | LBnet.cz s.r.o. | 512 |
| AS51727 | SKODA POWER s.r.o. | 512 |
| AS201608 | UnArtel s.r.o. | 512 |
| AS200806 | BOHEMIA ENERGY entity s.r.o. | 512 |
| AS200070 | CZ.NIC, z.s.p.o. | 512 |
| AS56988 | Mobile & Television Communications LLC | 512 |
| AS197144 | PP SVS Stream | 512 |
| AS62083 | Fio banka, a.s. | 512 |
| AS198953 | PricewaterhouseCoopers IT Services, s.r.o. | 512 |
| AS198621 | AVAST Software s.r.o. | 512 |
| AS198564 | Elcoma s.r.o. | 512 |
| AS198143 | Ceska Posta s.p. | 512 |
| AS198103 | CCS Ceska spolecnost pro platebni karty s.r.o. | 512 |
| AS59681 | Satellit PE | 512 |
| AS197815 | AVAST Software s.r.o. | 512 |
| AS196789 | Norfes JSC | 512 |
| AS196764 | RFI Minprirody Rossii FBGU | 512 |
| AS42174 | Sipcom Ltd. | 512 |
| AS30928 | ZAO Rubtsovsk | 512 |
| AS43866 | Altron a.s. | 512 |
| AS25321 | GROUP 4 Secure Solutions a.s. | 512 |
| AS206785 | Magistrat mesta Brna | 512 |
| AS50250 | Stavropol Committee for state purchases | 256 |
| AS50097 | IPVOIP s.r.o. | 256 |
| AS198494 | PREGIS, a.s | 256 |
| AS196762 | ALKOM Security, a.s. | 256 |
| AS61371 | FOP Martsinkevich Vyacheslav Anatolyevich | 256 |
| AS20701 | Marias sro | 256 |
| AS44104 | LCJ s.r.o. | 256 |
| AS200646 | BH securities, a.s. | 256 |
| AS50843 | ACUTUS ltd. | 256 |
| AS206329 | Infor (Barneveld) BV | 256 |
| AS59552 | VHG Ltd | 256 |
| AS206468 | Treboradice.net z.s. | 256 |
| AS56508 | Regionecoproduct-Povolzhie Ltd. | 256 |
| AS59825 | Green Technology Ltd. | 256 |
| AS59826 | PE Oleynik Dmitro Oleksandrovich | 256 |
| AS196849 | Marcela Byrtusova | 256 |
| AS61416 | STATE AUTONOMOUS ESTABLISHMENT OF THE ARKHANGELSK REGION "MANAGEMENT OF INFORMATION AND COMMUNICATION TECHNOLOGY OF ARKHANGELSK REGION" | 256 |
| AS9053 | VSHosting s.r.o. | 256 |
| AS197875 | UNIPETROL RPA, s.r.o. | 256 |
| AS51331 | SychrovNET s.r.o | 256 |
| AS202084 | Penta Investments, s.r.o. | 256 |
| AS56717 | OG Soft s.r.o. | 256 |
| AS51884 | Tera Telecom Ltd | 256 |
| AS15741 | Expiline Ltd. | 256 |
| AS205982 | Mraknet s.r.o. | 256 |
| AS48405 | Logica Czech republic s.r.o. | 256 |
| AS56891 | Ceskomoravska zarucni a rozvojova banka, a.s. | 256 |
| AS205857 | Diverse Path Solutions Inc | 256 |
| AS205724 | T.S.BOHEMIA a.s. | 256 |
| AS56894 | Balezinskie lokalnyie seti, Ltd. | 256 |
| AS28892 | Cesky urad zememericky a katastralni | 256 |
| AS202073 | ALTRON Business Solutions, a.s. | 256 |
| AS33877 | Druzstvo OFX | 256 |
| AS61985 | Technolink Ltd. | 256 |
| AS48802 | OOO "Povolzhskiy Processingoviy Center" | 256 |
| AS48890 | SOLVO ltd | 256 |
| AS199806 | DCIT, a.s. | 256 |
| AS199665 | Hana Juzkova | 256 |
| AS3229 | Intek Ltd. | 256 |
| AS44672 | OncaOnca Ltd. | 256 |
| AS25093 | Ceska sporitelna a.s. | 256 |
| AS62092 | LTV Europe Sicherheitstechnik GmbH i.G. | 256 |
| AS42847 | GlobexBank JSC | 256 |
| AS57194 | CHP Koshelnik Sergey Valentinovich | 256 |
| AS199604 | OLOMOUCKY KRAJ | 256 |
| AS197566 | OK-NET s.r.o. | 256 |
| AS41591 | Jaroslav Masaryk | 256 |
| AS201594 | Czech Telecommunication Office | 256 |
| AS199059 | Maurice Ward & Co., s.r.o. | 256 |
| AS61123 | Ekoniva-Tehnika Ltd. | 256 |
| AS57376 | Vaclav Rosa | 256 |
| AS61166 | Russian Federal Service for Alcohol Market Regulation | 256 |
| AS47924 | Grigory Aleksandrovich Shushpanov | 256 |
| AS39453 | KSRZIS | 256 |
| AS60218 | IT8 - Informacni technologie s.r.o. | 256 |
| AS201263 | Brno University of Technology | 256 |
| AS50248 | Vladivostok international airport JSC | 256 |
| AS49833 | Alexandr Y Potkin | 256 |
| AS60724 | Sicuro Services s. r. o. | 256 |
| AS50356 | Camelot Ltd | 256 |
| AS203299 | Ivo Hazmuk | 256 |
| AS51463 | FAJNCOM s.r.o. | 256 |
| AS57572 | Lesta Ltd. | 256 |
| AS204113 | Security Information Service | 256 |
| AS15380 | Air Navigation Services of the Czech Republic, state enterprise | 256 |
| AS206683 | Moravskoslezske inovacni centrum Ostrava, a.s. | 256 |
| AS57760 | Kinet s.r.o. | 256 |
| AS198882 | Karlovarsky Kraj | 0 |
| AS57523 | AMEuroTel s.r.o. | 0 |
| AS57540 | Suntel Net s.r.o. | 0 |
| AS197059 | HOTNET s.r.o. | 0 |
| AS210111 | Netcraft Solutions s.r.o. | 0 |
| AS198510 | Krajska zdravotni, a.s. | 0 |
| AS8747 | Dial Telecom, a.s. | 0 |
| AS57780 | VISSADO s.r.o. | 0 |
| AS198250 | ELDATA prazska s.r.o. | 0 |
| AS210088 | KONTRAX FT, s.r.o. | 0 |
| AS197026 | Galevi s.r.o. | 0 |
| AS206463 | Pavel Zizka | 0 |
| AS15485 | T-Mobile Czech Republic a.s. | 0 |
| AS210015 | Interface Services LLC | 0 |
| AS198027 | VITKOVICE IT SOLUTIONS a.s. | 0 |
| AS210011 | People Above Politics Inc. | 0 |
| AS206613 | Tipsport.net a.s. | 0 |
| AS59969 | FOP Kameristov Andrey Evgenovuch | 0 |
| AS209947 | M-wifi internet s.r.o. | 0 |
| AS207239 | NetX R&D z.s. | 0 |
| AS48268 | Inter Fiber s.r.o. | 0 |
| AS206050 | FreeNetwork s.r.o. | 0 |
| AS205885 | Navmatix s.r.o. | 0 |
| AS47200 | NIX.CZ z.s.p.o. | 0 |
| AS205549 | FixPro,z.s. | 0 |
| AS60143 | Brno University of Technology | 0 |
| AS205123 | Adept Media Group s.r.o. | 0 |
| AS205122 | RA Pioneers s.r.o. | 0 |
| AS205121 | HOT Communication s.r.o. | 0 |
| AS48959 | OOO "Paladin Invent" | 0 |
| AS205090 | NTX Technologies s.r.o. | 0 |
| AS204907 | Air Bank a.s. | 0 |
| AS49018 | Alphatech Resource Holdings s.r.o. | 0 |
| AS204746 | Komplet NET s.r.o. | 0 |
| AS204666 | Jiri Tlapak | 0 |
| AS207167 | amccomp s.r.o. | 0 |
| AS204505 | IT & WP HOST s.r.o. | 0 |
| AS41456 | KP NETWORK, spol. s r.o. | 0 |
| AS204405 | Durnet.cz sro | 0 |
| AS49418 | Domashnie Seti Ltd | 0 |
| AS49459 | Sigma plus Ltd. | 0 |
| AS43043 | OPSYLON LLC. | 0 |
| AS60647 | Prazska plynarenska,a.s. | 0 |
| AS34371 | Metropolitni s.r.o. | 0 |
| AS204375 | SychrovNET s.r.o | 0 |
| AS204247 | Jiri Dolezal | 0 |
| AS204216 | netsearch s.r.o. | 0 |
| AS204214 | S.I.C. spol. s r.o. | 0 |
| AS49972 | IT ADMIRABLE SERVICE LTD | 0 |
| AS60208 | J&T BANKA, a.s. | 0 |
| AS203743 | ISP Alliance a.s. | 0 |
| AS204051 | FLEA s.r.o. | 0 |
| AS34070 | DATin internet s.r.o. | 0 |
| AS50107 | tcp cloud a.s. | 0 |
| AS203705 | Pavel Zizka | 0 |
| AS203488 | DaLuNET s.r.o. | 0 |
| AS3234 | Parliament of the Czech Republic | 0 |
| AS203342 | Ladislav Rudolf | 0 |
| AS60727 | K2 atmitec s.r.o. | 0 |
| AS206321 | STARTECH spol. s r.o. | 0 |
| AS50491 | Planet A, a.s. | 0 |
| AS207048 | SPANET s.r.o. | 0 |
| AS29274 | Obcanske sdruzeni GAVANET | 0 |
| AS50714 | Closed Joint Stock Company TransTeleCom | 0 |
| AS28904 | PODA a.s. | 0 |
| AS202911 | Diovetech s.r.o. | 0 |
| AS202888 | KETNET s.r.o. | 0 |
| AS202733 | OK COMP s.r.o. | 0 |
| AS51105 | CIS TELECOM UK LTD | 0 |
| AS202732 | Ing Petr Sramek | 0 |
| AS51154 | Nej.cz s.r.o. | 0 |
| AS202522 | Suntel Net s.r.o. | 0 |
| AS202297 | Filip Hruska | 0 |
| AS28755 | ha-vel internet s.r.o. | 0 |
| AS61195 | Peering.cz s.r.o. | 0 |
| AS51403 | FOP Ljashenko Igor Ivanovich | 0 |
| AS51420 | cyrilek.net .z.s. | 0 |
| AS51424 | Jiri Sperl | 0 |
| AS51427 | HD Internet s.r.o. | 0 |
| AS202066 | Nas NET s.r.o. | 0 |
| AS2605 | CESNET z.s.p.o. | 0 |
| AS51449 | Kabelova televize Usti nad Orlici, spol. s r. o. | 0 |
| AS51521 | Resident Control s.r.o. | 0 |
| AS201987 | HEXAGEEK s.r.o. | 0 |
| AS206832 | Yes Networks Unlimited Ltd | 0 |
| AS201922 | amccomp s.r.o. | 0 |
| AS197299 | CENTEL s.r.o. | 0 |
| AS201761 | ISP Alliance a.s. | 0 |
| AS51801 | Nano.cz s.r.o. | 0 |
| AS201732 | Maxicom Technologies s.r.o. | 0 |
| AS51902 | Web4Soft Internet s.r.o. | 0 |
| AS51961 | Doyter Group Limited | 0 |
| AS201671 | Emerald Real Group s.r.o. | 0 |
| AS52027 | Leos Zalio | 0 |
| AS201464 | ISP Alliance a.s. | 0 |
| AS201267 | Kapchan company spol. s r.o. | 0 |
| AS201228 | Czech metrology institute | 0 |
| AS201187 | Whois protection, this company does not own this domain name s.r.o. | 0 |
| AS201179 | Vaudevile s.r.o. | 0 |
| AS201007 | Tesco Stores CR a.s. | 0 |
| AS200809 | ASJA CZ s.r.o. | 0 |
| AS24828 | UPC Ceska Republica, s.r.o. | 0 |
| AS200733 | ALLDIM s.r.o. | 0 |
| AS200673 | AMARTI s.r.o. | 0 |
| AS56427 | Michal Hradil | 0 |
| AS200633 | CHISTOV PRAGA s.r.o. | 0 |
| AS200394 | ER Business s.r.o. | 0 |
| AS200393 | ELAN plus, s.r.o. | 0 |
| AS200335 | EVA GROUP s.r.o. | 0 |
| AS56821 | KnVnet services s.r.o. | 0 |
| AS197246 | Glow Internet s.r.o. | 0 |
| AS15512 | UPC Ceska Republica, s.r.o. | 0 |
| AS21142 | T-Mobile Czech Republic a.s. | 0 |
| AS210325 | Air Networks s.r.o. | 0 |
| AS210187 | Kistler Instrumente AG | 0 |
| AS199630 | Municipal Office of the City Prague | 0 |
| AS206384 | Artemis Hosting s.r.o. | 0 |
| AS210169 | InloopX 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.