Czech Republic ASN Summary

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. 1,553,920
AS5588 T-Mobile Czech Republic a.s. 1,261,312
AS16019 Vodafone Czech Republic a.s. 1,208,064
AS2852 CESNET z.s.p.o. 848,896
AS44546 ALFA TELECOM s.r.o. 526,336
AS13036 T-Mobile Czech Republic a.s. 352,256
AS29208 Dial Telecom, a.s. 258,560
AS30764 PODA a.s. 222,208
AS2571 DHL Information Services (Europe) s.r.o 148,736
AS28725 CETIN a.s. 133,888
AS16246 Nej.cz s.r.o. 124,928
AS25512 CD-Telematika a.s. 118,784
AS15425 PODA a.s. 110,592
AS25248 RADIOKOMUNIKACE a.s. 106,752
AS12767 T-Mobile Czech Republic a.s. 67,072
AS197451 Brno University of Technology 67,072
AS31246 SMART Comp. a.s. 66,560
AS9080 Ipex Ltd. 63,488
AS24971 Master Internet s.r.o. 59,648
AS28851 Nordic Telecom s.r.o 58,368
AS15685 CASABLANCA INT a.s. 58,112
AS12570 itself s.r.o. 57,856
AS44489 STARNET, s.r.o. 52,992
AS15935 ha-vel internet s.r.o. 52,480
AS24806 INTERNET CZ, a.s. 45,824
AS42908 Nordic Telecom s.r.o 41,984
AS6740 ADAPTIVITY s.r.o. 41,984
AS21430 WIA spol. s.r.o. 39,424
AS39906 CoProSys a.s. 37,632
AS25424 InterneXt 2000, s.r.o. 33,792
AS39392 SH.cz s.r.o. 32,768
AS41046 Nej.cz s.r.o. 32,768
AS34093 Nordic Telecom Regional s.r.o. 29,696
AS29134 Webglobe, s.r.o. 25,088
AS43708 METRONET s.r.o. 24,064
AS47232 ISP Alliance a.s. 23,040
AS198605 AVAST Software s.r.o. 22,272
AS43541 VSHosting s.r.o. 19,968
AS42306 Edera Group a.s. 19,456
AS34040 TTNET s.r.o. 19,456
AS204860 NetX Networks a.s. 18,944
AS39791 Telco Pro Services, a. s. 18,432
AS24641 FASTER CZ spol. s r.o. 17,920
AS49985 IP4ISP z.s.p.o 17,408
AS8251 FreeTel, s.r.o. 17,408
AS61296 TechCom s.r.o. 17,408
AS196735 JON.CZ s.r.o. 16,384
AS197197 M.NET STUDENKA s. r. o. 16,384
AS196822 SELECT SYSTEM, s.r.o. 16,384
AS29321 CentroNet a.s. 15,360
AS20723 AVONET, s.r.o. 15,360
AS57728 HELIOS MB s.r.o. 15,360
AS51248 Host-Telecom.com s.r.o. 14,336
AS207187 TKR Jasek, s.r.o. 14,336
AS50113 NTX Technologies s.r.o. 13,824
AS28972 M-SOFT, spol. s r.o. 13,312
AS197013 Sprintel s.r.o. 12,800
AS35592 Coolhousing s.r.o. 12,544
AS20884 O2 Czech Republic, a.s. 12,288
AS34315 Dial Telecom, a.s. 12,288
AS15614 Dragon Internet a.s. 12,288
AS48474 Nordic Telecom Regional s.r.o. 12,288
AS50241 UnitTelecom Ltd 11,520
AS43542 OptoNet Communication, spol. s.r.o. 11,264
AS50698 TETA s.r.o. 11,264
AS34080 MIRAMO spol. s.r.o. 11,264
AS197019 WEDOS Internet, a.s. 11,264
AS47834 SOFTEX NCP, s.r.o. 11,264
AS196845 Nordic Telecom s.r.o 11,264
AS35236 2 connect a.s. 10,496
AS198668 Tlapnet s.r.o. 10,496
AS39761 ABAK, Co.Ltd. 10,240
AS35361 GREPA Networks s.r.o. 10,240
AS35214 Nordic Telecom Regional s.r.o. 10,240
AS49106 Opticom Group AO 10,240
AS43070 JAW.cz s.r.o. 9,728
AS49931 SITKOM spol. s r.o. 9,728
AS48574 Planet A, a.s. 9,216
AS50025 Net Television Ltd 9,216
AS197798 Net-Connect s.r.o. 9,216
AS49889 Crystal Telecom Ltd 9,216
AS48926 Pe3ny Net s.r.o. 9,216
AS49101 KABELOVA TELEVIZE CZ s.r.o. 9,216
AS200918 Pavel Zizka 8,704
AS201476 ISP Alliance a.s. 8,704
AS42000 Futruy s.r.o. 8,448
AS57069 Dempsey and Clark s.r.o. 8,448
AS43507 RETE internet, s.r.o. 8,192
AS41088 N SYS s.r.o. 8,192
AS49025 PRO-ZETA a.s. 8,192
AS47493 WMS s.r.o. 8,192
AS33943 Cesky Bezdrat, s.r.o. 8,192
AS56566 SATT a.s. 8,192
AS8913 Mopos Communications A.S. 8,192
AS42189 Druzstvo EUROSIGNAL 8,192
AS198002 FDLnet.CZ, s.r.o. 8,192
AS35613 NetDataComm, s.r.o. 8,192
AS57800 Cadr-TV LLE TVRC 8,192
AS51420 cyrilek.net .z.s. 8,192
AS51731 GTT a.s. 8,192
AS202237 Wic-Net, s.r.o. 8,192
AS25234 ACTIVE 24, s.r.o. 8,192
AS43709 SilesNet s.r.o. 8,192
AS50022 Kristelecom Ltd. 8,192
AS57564 Nordic Telecom Regional s.r.o. 8,192
AS51891 GSP ltd. 8,192
AS8518 RFE/RL, Inc., organizacni slozka 7,936
AS33883 TRIOPTIMUM s.r.o. 7,168
AS204383 SPCom s.r.o. 7,168
AS50825 UVT Internet s.r.o. 7,168
AS35046 OMEGA plus Chrudim s.r.o. 7,168
AS39235 Nordic Telecom Regional s.r.o. 7,168
AS201730 DataSpring s.r.o. 7,168
AS197296 Maxtel s.r.o. 6,656
AS25192 CZ.NIC, z.s.p.o. 6,400
AS29583 Spinoco Czech Republic, a.s. 6,400
AS34222 ZONER software, a.s 6,144
AS59479 GEMNET s.r.o. 6,144
AS28905 BECO Link,spol.s.r.o. 6,144
AS51428 IRONNET Ltd. 6,144
AS198813 SychrovNET s.r.o 6,144
AS47114 SychrovNET s.r.o 6,144
AS207198 Kabelova televize Koprivnice, s.r.o. 6,144
AS43413 NEW TELEKOM, spol. s r.o. 6,144
AS44065 NETAIR, s.r.o. 6,144
AS197307 Core4Net, s.r.o. 5,376
AS202895 TFnet s.r.o. 5,120
AS49767 Nej.cz s.r.o. 5,120
AS41670 hkfree.org z.s. 5,120
AS39790 Web4U s.r.o. 5,120
AS30877 Ariadna-Link CJSC 5,120
AS60592 Gransy s.r.o. 5,120
AS39817 OvaNet, a.s. 5,120
AS202618 Rychly drat, s.r.o. 5,120
AS196843 KHnet.info, z.s. 5,120
AS48494 BUKO LTD 5,120
AS206548 Tlap s.r.o. 5,120
AS207242 NOEL, s.r.o. 5,120
AS41453 SITEL spol. s r.o. 5,120
AS31349 a-net Liberec s.r.o. 5,120
AS48661 AIRWAYNET, a.s. 5,120
AS209810 Netcore services s.r.o. 4,864
AS47110 Cloud4com, a.s. 4,608
AS52092 Alf servis, s.r.o. 4,608
AS29086 GiTy, a.s. 4,096
AS39904 MERIT GROUP a.s 4,096
AS198500 Masarykova univerzita - Ustav vypocetni techniky 4,096
AS62099 JM-Net, z.s. 4,096
AS198403 Matrigo s.r.o. 4,096
AS196782 Marek Smutny 4,096
AS47868 SUPRO, spol. s r.o. 4,096
AS57287 OtavaNet s.r.o. 4,096
AS57399 LTnet, s.r.o 4,096
AS57294 Internet Expert s.r.o. 4,096
AS57279 Sauron CZ s.r.o. 4,096
AS56450 Alberon Letohrad s.r.o 4,096
AS57188 ORKA systems, s.r.o. 4,096
AS57496 AIRESS CESKO s.r.o. 4,096
AS56456 C2NET s.r.o. 4,096
AS197550 Internet4you.cz, spol. s r.o. 4,096
AS48417 ITS akciova spolecnost 4,096
AS60931 LAN-Service Ltd. 4,096
AS51968 NEOS v.o.s. 4,096
AS47269 Core4Net, s.r.o. 4,096
AS198991 TV Nova sro 4,096
AS49890 ABLE agency, s.r.o. 4,096
AS56360 TRINITY CZECH REPUBLIC, s.r.o. 4,096
AS44070 MCnet, s.r.o. 4,096
AS204064 ISP Alliance a.s. 4,096
AS52115 JaroNet - services s.r.o. 4,096
AS21045 K-net Technical International Group, s.r.o. 4,096
AS51800 FIBER Network s.r.o. 4,096
AS197846 Radovan Ochvat trading as SAO Computers 4,096
AS197029 LAM plus s.r.o. 4,096
AS207167 amccomp s.r.o. 3,584
AS34911 ELDATA prazska s.r.o. 3,584
AS6881 NIX.CZ z.s.p.o. 3,328
AS57760 Kinet s.r.o. 3,328
AS62178 MASTER IT Technologies, a.s. 3,328
AS43614 Economia a.s. 3,072
AS56973 VITKOVICE IT SOLUTIONS a.s. 3,072
AS48364 Radim Pytela - AC Vyskov 3,072
AS34047 Bystrov Dmitriy Sergeevich 3,072
AS197046 FIXnet s.r.o. 3,072
AS198161 Sokolovska uhelna, pravni nastupce, a.s. 3,072
AS44002 Sys-DataCom s.r.o. 3,072
AS196861 DIGITAL ACTION s.r.o. 3,072
AS200059 AIRWEB, spol. s r.o. 3,072
AS34955 Martin Vicenik 3,072
AS47727 Warnet.cz s.r.o. 3,072
AS43037 Seznam.cz, a.s. 3,072
AS49320 Golitsyno Telecom Ltd 3,072
AS197879 HelaPC s.r.o. 3,072
AS47317 Web4ce, s.r.o. 3,072
AS203018 PAMICO CZECH, s.r.o. 3,072
AS57077 AB-NET s.r.o. 3,072
AS202921 CC INTERNET s.r.o. 3,072
AS48298 MINISTERSTVO VNITRA CR 2,816
AS198167 Apptc.me s.r.o. 2,816
AS50398 Fast Communication, s.r.o. 2,560
AS198977 UnArtel s.r.o. 2,560
AS52058 Michal Najman 2,560
AS51234 Telecompany Fialka Ltd. 2,560
AS197206 BusinessCom CZ spol. s r.o. 2,304
AS48960 AQUA,a.s. 2,304
AS50301 BrazdimNET s.r.o. 2,304
AS43203 TELCONET s.r.o. 2,304
AS62011 UNHfree.net z.s. 2,048
AS213057 innogy Ceska republika a.s 2,048
AS213223 GasNet, s.r.o. 2,048
AS21241 Global Payments Europe, s.r.o. 2,048
AS44424 Internet Mall, a.s. 2,048
AS51655 Ilim Telecom Ltd. 2,048
AS52029 Palanet s.r.o. 2,048
AS51525 Informacionnuye technologiyi Ltd 2,048
AS200848 Miroslav Holienka 2,048
AS211774 ign.cz internet, s.r.o. 2,048
AS41030 Jaroslav Novotny 2,048
AS52084 ATL Obchodni s.r.o. 2,048
AS51524 Ales Tesacek 2,048
AS52130 LiveSport s.r.o. 2,048
AS210306 ADV Computers s.r.o. 2,048
AS52154 mjanik.net s.r.o. 2,048
AS52176 TTC TELEKOMUNIKACE s.r.o. 2,048
AS51400 SPOJE.NET s.r.o. 2,048
AS38952 MAFRA, a.s. 2,048
AS31461 Moravia IT s.r.o. 2,048
AS56427 Michal Hradil 2,048
AS34049 H-data, spol. s r.o. 2,048
AS51210 KRAXNET s.r.o. 2,048
AS60529 Miroslav Klement 2,048
AS197083 K2 atmitec s.r.o. 2,048
AS197218 PP Dmutrashko Evgeny Vitalievich 2,048
AS208906 SYNOT ICT Services, a.s. 2,048
AS201548 Milan Zelenka 2,048
AS44430 MaRcom-Eko s.r.o. 2,048
AS201648 Plzensky kraj 2,048
AS201654 Web4Soft Internet s.r.o. 2,048
AS47949 gsnet.cz s.r.o. 2,048
AS59970 AmigoNet s.r.o. 2,048
AS59959 SferiaNET.cz s.r.o. 2,048
AS43895 Zentiva Group, a.s 2,048
AS47131 PH, spol. s r. o. 2,048
AS43757 ICZ a.s. 2,048
AS200114 PRO-COMUNICATION s.r.o 2,048
AS63113 Globecorp Networks 2,048
AS197393 Ladislav Rudolf 2,048
AS50348 KVADOS, a.s. 2,048
AS197442 Nordic Telecom Regional s.r.o. 2,048
AS50163 Altnet s.r.o. 2,048
AS202682 G2 server CZ s.r.o. 2,048
AS208648 Playground HUB s.r.o. 2,048
AS197542 Jan Saulich 2,048
AS197565 NHK Solutions s.r.o. 2,048
AS203165 Statni pokladna Centrum sdilenych sluzeb, s.p. 2,048
AS196684 VITALATIV, s.r.o. 2,048
AS57823 INERCOM, s.r.o. 2,048
AS57798 IT-Net ltd. 2,048
AS198031 Trustica s.r.o. 2,048
AS204165 Cznet s.r.o. 2,048
AS48451 Prazska energetika, a.s. 2,048
AS57566 Wircom s.r.o. 2,048
AS196873 Netlancers s.r.o. 2,048
AS198248 Richard Filip 2,048
AS199657 TNtech, s.r.o. 2,048
AS198282 Cable-NET s.r.o. 2,048
AS56624 Rtyne.net s.r.o. 2,048
AS57288 StaMPi, spol. s r.o. 2,048
AS44712 eHAMnet, s.r.o. 2,048
AS61425 Mlada fronta a.s. 2,048
AS56821 KnVnet services s.r.o. 2,048
AS20609 KAZA.cz s.r.o. 2,048
AS48780 OLTELECOM JSC 2,048
AS47767 Regionalni centrum Olomouc s.r.o. 2,048
AS197277 State Institute for Drug Control 2,048
AS206420 KABEL servis Praha spol. s r.o. 2,048
AS206429 CORSAT s.r.o 2,048
AS196815 LAN servis s.r.o. 2,048
AS50971 JHComp s.r.o. 2,048
AS50975 AVX Czech republic s.r.o 2,048
AS199101 Nordic Telecom Regional s.r.o. 2,048
AS44500 Vlasimnet s.r.o. 2,048
AS202756 RFE/RL, Inc., organizacni slozka 1,792
AS200844 STUDENT AGENCY k.s. 1,792
AS51134 Development 777 s.r.o. 1,792
AS199803 ComSource s.r.o. 1,536
AS58239 hanspaul-city.net s.r.o. 1,536
AS197694 Municipal Office of the City Prague 1,536
AS48091 Kraj Vysocina 1,536
AS196653 BEST-NET s.r.o. 1,536
AS200449 Qrator Labs CZ s.r.o. 1,536
AS204007 Kleissner Investments s.r.o. 1,536
AS200678 ISP Alliance a.s. 1,280
AS49359 Dmitry Kozhushko 1,280
AS204332 TKC system s.r.o. 1,280
AS197920 SKODA ICT s.r.o. 1,280
AS198725 Ultimum Technologies a.s. 1,280
AS42726 BusinessCom CZ spol. s r.o. 1,280
AS62159 Happy Technik s.r.o. 1,280
AS51211 PE Rulev Dmitriy Alexandrovich 1,280
AS49013 Fusion Media, s.r.o. 1,280
AS206270 ISP Alliance a.s. 1,024
AS48085 DNIPRO-Techcenter Ltd 1,024
AS48602 Connect plus s.r.o. 1,024
AS48889 GLOBECORP a.s. 1,024
AS49095 PRAHA12.com s.r.o. 1,024
AS49121 Infinity Telecom, s.r.o. 1,024
AS49142 HBO Europe s.r.o. 1,024
AS50067 CESAL s.r.o. 1,024
AS49573 JimmyNet s.r.o. 1,024
AS197412 BT MEDIA INVEST s.r.o. 1,024
AS197444 Vlastimil Drazsky 1,024
AS197575 CHP Mediana-Servis 1,024
AS197786 Telefonnyie seti Ltd. 1,024
AS62405 Brouzdal, s.r.o. 1,024
AS197895 ONYX engineering, spol. s r.o. 1,024
AS198101 Kooperativa pojistovna, a.s., Vienna Insurance Group 1,024
AS62176 EZE A.S. 1,024
AS198212 "TeleNet Sayansk" LLC 1,024
AS198284 Mesto Velka Bystrice 1,024
AS198346 NETFORMS s.r.o. 1,024
AS62102 Informacni sluzby energetika a.s. 1,024
AS198657 GOLDWARE s.r.o. 1,024
AS198814 ALPHA StylSoft, s.r.o. 1,024
AS61981 Mach3net 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
AS8646 cloudinfrastack, s.r.o. 1,024
AS199711 National Cyber and Information Security Agency 1,024
AS199722 Sberbank CZ, a.s. 1,024
AS200155 Technologicke centrum Pisek 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
AS61169 Nej.cz s.r.o. 1,024
AS61110 Sprava informacnich technologii mesta Plzne, p.o. 1,024
AS200828 TERMS a.s. 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
AS60266 Home Credit International a.s. 1,024
AS12984 PilsFree, z. s. 1,024
AS201457 Kooperativa pojistovna, a.s., Vienna Insurance Group 1,024
AS60086 Valvera s.r.o. 1,024
AS201533 United Networks SE 1,024
AS201559 United Networks SE 1,024
AS201625 United Networks SE 1,024
AS59984 KLFREE NETWORKS, s.r.o. 1,024
AS201727 Spolek bubakov.net 1,024
AS201926 Futurenet ISP s.r.o. 1,024
AS59925 Seonet Multimedia s.r.o. 1,024
AS59871 Heureka Group a.s. 1,024
AS202551 INERA.CZ s.r.o. 1,024
AS202556 Spolek Krivonet 1,024
AS202605 EMPECOM, s.r.o. 1,024
AS202657 Pavel Jochim 1,024
AS202719 Pranet s.r.o. 1,024
AS59664 Opton 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
AS203328 PVfree.net, z. s. 1,024
AS58220 Tomas Budai 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
AS203488 DaLuNET s.r.o. 1,024
AS203550 i2net cz s.r.o. 1,024
AS57904 Vevynet s.r.o. 1,024
AS57779 ICTIS.CZ s.r.o. 1,024
AS204080 Apelby Solutions s.r.o. 1,024
AS57707 Greendata s.r.o. 1,024
AS204351 NAM system, a.s. 1,024
AS204394 Cortex, a.s. 1,024
AS204409 Prestonet s.r.o. 1,024
AS57560 XLNET 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
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
AS205863 Stepan Pokorny 1,024
AS205968 GeneralNet s.r.o. 1,024
AS206177 SitePark s.r.o. 1,024
AS206212 KCG spol. s.r.o. 1,024
AS206287 LysaFree, z.s. 1,024
AS57081 Scarfbot Technologies, s.r.o. 1,024
AS206344 AUKRO s.r.o. 1,024
AS206414 TechCenter 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
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
AS57007 NITEX ISP s.r.o. 1,024
AS56936 Mbit City Ltd. 1,024
AS56827 mirnet s.r.o. 1,024
AS12344 CZECH IT CLUSTER, druzstvo 1,024
AS13199 Jaroslav Doubrava 1,024
AS207886 ECOMP spol s r.o. 1,024
AS208093 Moravskoslezsky kraj 1,024
AS208329 Ceska televize 1,024
AS208355 TechKeeper s.r.o. 1,024
AS208414 WEDOS Internet, a.s. 1,024
AS208466 E.ON Telco, s.r.o. 1,024
AS208543 Diovetech s.r.o. 1,024
AS208659 INNC s.r.o. 1,024
AS208663 Martin Pustka 1,024
AS208805 POPE servis s.r.o. 1,024
AS56562 Telecom Plus Company Ltd. 1,024
AS208847 Martin Fryzl 1,024
AS209055 W.A.G. PAYMENT SOLUTIONS, A.S. 1,024
AS209155 Onehostplanet s.r.o. 1,024
AS209621 DOBNET, z.s. 1,024
AS196916 BusinessCom CZ spol. s r.o. 1,024
AS209834 KAZA.cz s.r.o. 1,024
AS56344 Viridium.cz s.r.o. 1,024
AS209947 M-wifi internet s.r.o. 1,024
AS196952 BEZVANET s.r.o. 1,024
AS212138 Technicke site Brno, akciova spolecnost 1,024
AS196978 Milos Tuma 1,024
AS51744 Non-profit organization Jablonka.cz 1,024
AS213152 Narodni bezpecnostni urad Czech Republic 1,024
AS25238 MONETA Money Bank, a.s. 1,024
AS51424 Jiri Sperl 1,024
AS29504 Freenet Liberec, z.s. 1,024
AS31559 Matrigo s.r.o. 1,024
AS51382 COMANET NETWORK 1,024
AS51371 Ashtarak-Elit Ltd. 1,024
AS51331 SychrovNET s.r.o 1,024
AS34475 Agrostroj Pelhrimov, a.s. 1,024
AS34596 HVfree.net servis. s.r.o. 1,024
AS34819 H17 Networks, s.r.o. 1,024
AS35096 Alef Nula a.s. 1,024
AS35420 Perspektiva Ltd. 1,024
AS39736 ICT Support, s.r.o. 1,024
AS50980 E3.cz, sro 1,024
AS41779 LajsiNET s.r.o. 1,024
AS42269 Foton Ltd 1,024
AS50784 Intraweb servis s.r.o. 1,024
AS44770 Savvy s.r.o. 1,024
AS44984 Fortion Networks, s.r.o. 1,024
AS50415 Ahosting a.s. 1,024
AS47749 ORIFLAME SOFTWARE s.r.o. 1,024
AS208950 Ezpada s.r.o 768
AS59888 PE Grinkiv Nadia Oliksandrivna 768
AS206591 Alza.cz a.s. 768
AS209135 Flowmon Networks a.s. 768
AS207095 FORTUNA GAME a.s. 768
AS205653 Jumpshot s.r.o. 768
AS204949 Ceskomoravske informacni systemy s.r.o. 768
AS57472 JR-NET, s.r.o. 768
AS42174 Sipcom Ltd. 768
AS50833 FIBER TELECOM s.r.o. 768
AS200070 CZ.NIC, z.s.p.o. 768
AS199220 KrU Stredoceskeho kraje 768
AS203208 Czech Telecommunication Office 768
AS206718 RFE/RL, Inc., organizacni slozka 768
AS48098 Valikov Yury Aleksandrovich 768
AS206712 FELDSAM s.r.o. 768
AS56988 Mobile & Television Communications LLC 512
AS20701 CZ.NIC, z.s.p.o. 512
AS49510 TCV Ltd 512
AS206908 FORTUNA GAME a.s. 512
AS206785 Magistrat mesta Brna 512
AS42995 Firma Geotelecom Ltd. 512
AS206234 FORTUNA GAME a.s. 512
AS196764 RFI Minprirody Rossii FBGU 512
AS204668 ASTANA Technologies s.r.o. 512
AS196687 obcanske sdruzeni TRENET 512
AS202948 FORTUNA GAME a.s. 512
AS59681 Satellit PE 512
AS202131 ISP Alliance a.s. 512
AS43866 Altron a.s. 512
AS201934 Satan s.r.o. 512
AS201931 LBnet.cz s.r.o. 512
AS201811 Austole s.r.o. 512
AS201608 UnArtel s.r.o. 512
AS60275 RVTech s.r.o. 512
AS200806 BOHEMIA ENERGY entity s.r.o. 512
AS61416 STATE AUTONOMOUS ESTABLISHMENT OF THE ARKHANGELSK REGION MANAGEMENT OF INFORMATION AND COMMUNICATION TECHNOLOGY OF ARKHANGELSK REGION 512
AS198621 AVAST Software s.r.o. 512
AS49506 GumsNet Ltd 512
AS62083 Fio banka, a.s. 512
AS49313 Seva-Host Ltd 512
AS198143 Ceska Posta s.p. 512
AS48131 i-registry s.r.o. 512
AS198103 CCS Ceska spolecnost pro platebni karty s.r.o. 512
AS197698 D-H-T SYSTEMS s.r.o. 512
AS50695 VLTAVA LABE MEDIA a.s. 512
AS197353 NN Management Services, s.r.o. 512
AS51245 Center of Information Technologies Ltd. 512
AS30928 ZAO Rubtsovsk 512
AS30738 NetArt Group s.r.o. 512
AS51448 Uralskie Kabelnye Seti Ltd. 512
AS51521 Resident Control s.r.o. 512
AS25553 TRK Gluhov Ltd. 512
AS197144 PP SVS Stream 512
AS25093 Ceska sporitelna a.s. 512
AS25321 GROUP 4 Secure Solutions a.s. 512
AS51727 SKODA POWER s.r.o. 512
AS212569 Yung Wo Tin Leung 512
AS39896 FIBER TELECOM s.r.o. 512
AS212453 FORTUNA GAME a.s. 512
AS212325 ADC Systems s.r.o. 512
AS21205 ING WholeSale Bank 512
AS196943 Vissado s.r.o. 512
AS210061 Ladislav Kepl 512
AS209795 SPC-net s.r.o. 512
AS41359 Telefonzentrale s.r.o. 512
AS208712 CENDIS, s.p. 512
AS208422 Infinity Telecom, s.r.o. 512
AS208060 Dr. Max BDC, s.r.o. 512
AS49997 Piton Ltd 512
AS49580 Monet +, a.s. 512
AS56717 OG Soft s.r.o. 256
AS12608 NTX Technologies s.r.o. 256
AS15380 Air Navigation Services of the Czech Republic, state enterprise 256
AS15731 Reliable Communications s.r.o. 256
AS15741 Expiline Ltd. 256
AS196762 ALKOM Security, a.s. 256
AS196849 Marcela Byrtusova 256
AS197566 OK-NET s.r.o. 256
AS197875 UNIPETROL RPA, s.r.o. 256
AS198494 PREGIS, a.s 256
AS199059 Maurice Ward & Co., s.r.o. 256
AS199604 OLOMOUCKY KRAJ 256
AS199665 Hana Juzkova 256
AS199806 DCIT, a.s. 256
AS200646 BH securities, a.s. 256
AS201263 Brno University of Technology 256
AS201594 Czech Telecommunication Office 256
AS201922 amccomp s.r.o. 256
AS202073 Itego a.s. 256
AS202084 Penta Investments, s.r.o. 256
AS203299 Ivo Hazmuk 256
AS204113 Security Information Service 256
AS204543 Filip Hruska 256
AS205724 T.S.BOHEMIA a.s. 256
AS205982 Mraknet s.r.o. 256
AS206468 Treboradice.net z.s. 256
AS206613 Tipsport.net a.s. 256
AS206683 Moravskoslezske inovacni centrum Ostrava, a.s. 256
AS206703 Netcom Solutions s.r.o. 256
AS207231 FuturNET, s.r.o. 256
AS207850 HovNet-SERVIS s.r.o. 256
AS208143 amccomp s.r.o. 256
AS208259 SamaTech 256
AS209680 JetBrains, s. r. o. 256
AS211594 Peernet s.r.o. 256
AS211700 Dexus Internet s.r.o. 256
AS212362 KMK systems s.r.o. 256
AS212906 Moneroj s.r.o. 256
AS213387 TeSuNet s.r.o. 256
AS213395 NetX Networks a.s. 256
AS28892 Cesky urad zememericky a katastralni 256
AS3229 Intek Ltd. 256
AS34293 J.S.tel s.r.o. 256
AS34487 SouthPrague.Net, z.s. 256
AS39453 KSRZIS 256
AS41180 RFE/RL, Inc., organizacni slozka 256
AS43234 Chip-Telecom Ltd. 256
AS44104 LCJ s.r.o. 256
AS48405 CGI IT Czech Republic s.r.o. 256
AS48802 OOO "Povolzhskiy Processingoviy Center" 256
AS48890 SOLVO ltd 256
AS49262 Ataccama Software, s.r.o. 256
AS50097 IPVOIP s.r.o. 256
AS50103 Media Region Inc. 256
AS50248 Vladivostok international airport JSC 256
AS50356 Camelot Ltd 256
AS51278 Webglobe, s.r.o. 256
AS51449 Kabelova televize Usti nad Orlici, spol. s r. o. 256
AS51463 FAJNCOM s.r.o. 256
AS51884 Tera Telecom Ltd 256
AS56508 Regionecoproduct-Povolzhie Ltd. 256
AS56891 Ceskomoravska zarucni a rozvojova banka, a.s. 256
AS57572 Lesta Ltd. 256
AS59552 VHG Ltd 256
AS59826 PE Oleynik Dmitro Oleksandrovich 256
AS60218 IT8 - Informacni technologie s.r.o. 256
AS60724 Sicuro Services s. r. o. 256
AS61123 Ekoniva-Tehnika Ltd. 256
AS61166 Russian Federal Service for Alcohol Market Regulation 256
AS62298 Computer Systems Consulting s.r.o. 256
AS9053 VSHosting s.r.o. 256
AS42477 Cerberos s.r.o. 0
AS42422 SecurityNet.cz s.r.o. 0
AS41824 O2 Czech Republic, a.s. 0
AS41711 FreeTel, s.r.o. 0
AS51025 VSHosting s.r.o. 0
AS41456 KP NETWORK, spol. s r.o. 0
AS41267 GREPA Networks s.r.o. 0
AS40964 ASTELNET s.r.o. 0
AS39050 NET service solution, s.r.o. 0
AS34371 Metropolitni s.r.o. 0
AS34302 Sprintel s.r.o. 0
AS198171 Webglobe, s.r.o. 0
AS34070 DATin internet s.r.o. 0
AS51351 LTD Objedinennaja Setevaja Kompanija 0
AS33877 Druzstvo OFX 0
AS3234 Parliament of the Czech Republic 0
AS29525 Virtualmaster, s.r.o. 0
AS29401 SH.cz s.r.o. 0
AS29113 Vodafone Czech Republic a.s. 0
AS28904 PODA a.s. 0
AS28755 ha-vel internet s.r.o. 0
AS198027 VITKOVICE IT SOLUTIONS a.s. 0
AS15485 T-Mobile Czech Republic a.s. 0
AS2819 T-Mobile Czech Republic a.s. 0
AS2605 CESNET z.s.p.o. 0
AS25036 O2 Czech Republic, a.s. 0
AS24828 Vodafone Czech Republic a.s. 0
AS21435 Vodafone Czech Republic a.s. 0
AS213359 Jan Korinek 0
AS213104 FIBER TELECOM s.r.o. 0
AS213019 Blast Group Inc. 0
AS51801 Nano.cz s.r.o. 0
AS197815 AVAST Software s.r.o. 0
AS212876 Pardubicky Kraj 0
AS51902 Web4Soft Internet s.r.o. 0
AS212224 Coolhousing s.r.o. 0
AS211898 vpsFree.cz, z.s. 0
AS211731 Ministry of labour and social affairs 0
AS211489 Modralog S.r.o 0
AS21142 T-Mobile Czech Republic a.s. 0
AS52095 Netassist International s.r.o. 0
AS21082 Reliable Communications s.r.o. 0
AS210325 Air Networks s.r.o. 0
AS210169 InloopX s.r.o. 0
AS210115 Artemis Hosting s.r.o. 0
AS5407 PODA a.s. 0
AS210111 Netcraft Solutions s.r.o. 0
AS210088 KONTRAX FT, s.r.o. 0
AS209840 S1 Communications s.r.o. 0
AS209823 Alphatech Resource Holdings s.r.o. 0
AS209816 Trend Digital Marketing s.r.o. 0
AS209692 FOXCONN CZ s.r.o. 0
AS209477 MAXICOM HOLDING a.s. 0
AS197376 DataSpring s.r.o. 0
AS208836 INTERCONNECT SM LLC 0
AS208387 Blond & Brown s.r.o. 0
AS207855 ModernTV Anycast 0
AS207696 Dopravni podnik hl.m. Prahy, a.s. 0
AS207643 BT MEDIA INVEST s.r.o. 0
AS207632 Jan Betik 0
AS6706 Dial Telecom, a.s. 0
AS207583 Technologicke centrum a.s. 0
AS207576 KOVO - PLAZMA s.r.o. 0
AS207575 Zahradnicke centrum Brabec, s.r.o. 0
AS207354 Teleconnect CZ s.r.o. 0
AS206569 TEORA s.r.o. 0
AS206463 Pavel Zizka 0
AS206334 AVAST Software s.r.o. 0
AS57158 GRAPE SC, a.s. 0
AS206321 STARTECH spol. s r.o. 0
AS57194 CHP Koshelnik Sergey Valentinovich 0
AS206050 FreeNetwork s.r.o. 0
AS205719 Data & File Processing s.r.o. 0
AS205549 FixPro,z.s. 0
AS205248 Netassist International s.r.o. 0
AS204907 Air Bank a.s. 0
AS204746 Komplet NET s.r.o. 0
AS204666 Jiri Tlapak 0
AS57523 AMEuroTel s.r.o. 0
AS57540 Nordic Telecom Regional s.r.o. 0
AS204505 IT & WP HOST s.r.o. 0
AS204405 Durnet.cz sro 0
AS204375 SychrovNET s.r.o 0
AS197299 CENTEL s.r.o. 0
AS204247 Cznet s.r.o. 0
AS204216 netsearch s.r.o. 0
AS204214 S.I.C. spol. s r.o. 0
AS204058 Wawahi s.r.o. 0
AS204051 FLEA s.r.o. 0
AS203743 ISP Alliance a.s. 0
AS203705 Pavel Zizka 0
AS57825 MoravanyNET s.r.o. 0
AS203645 Jan Ryznar 0
AS57919 Wicom Ltd. 0
AS203342 Ladislav Rudolf 0
AS203072 DomaTV s.r.o. 0
AS202888 KETNET s.r.o. 0
AS197246 Glow Internet s.r.o. 0
AS202733 OK COMP s.r.o. 0
AS202732 Ing Petr Sramek 0
AS197059 HOTNET s.r.o. 0
AS202522 Nordic Telecom Regional s.r.o. 0
AS202066 Nas NET s.r.o. 0
AS201987 HEXAGEEK s.r.o. 0
AS59932 Quick Technology Company s.r.o. 0
AS201761 ISP Alliance a.s. 0
AS59969 FOP Kameristov Andrey Evgenovuch 0
AS201732 Maxicom Technologies s.r.o. 0
AS201671 Emerald Real Group s.r.o. 0
AS201464 ISP Alliance a.s. 0
AS60143 Brno University of Technology 0
AS60208 J&T BANKA, a.s. 0
AS197026 Galevi 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
AS60606 PRO-ZETA a.s. 0
AS60647 Prazska plynarenska,a.s. 0
AS15512 Vodafone Czech Republic a.s. 0
AS60727 K2 atmitec s.r.o. 0
AS200809 ASJA CZ s.r.o. 0
AS200717 STEN.cz s.r.o. 0
AS8747 Dial Telecom, a.s. 0
AS15494 BT Limited, organizacni slozka 0
AS200673 AMARTI s.r.o. 0
AS61195 Peering.cz s.r.o. 0
AS200633 CHISTOV PRAGA s.r.o. 0
AS200393 ELAN plus, s.r.o. 0
AS199630 Municipal Office of the City Prague 0
AS61973 Netassist International s.r.o. 0
AS198953 PricewaterhouseCoopers IT Services, s.r.o. 0
AS198882 Karlovarsky Kraj 0
AS50015 Oleksandr Butenko 0
AS49972 IT ADMIRABLE SERVICE LTD 0
AS49418 Domashnie Seti Ltd 0
AS198564 STARNET, s.r.o. 0
AS198510 Krajska zdravotni, a.s. 0
AS49334 Sergey Krashevich 0
AS48268 Inter Fiber s.r.o. 0
AS47924 Grigory Aleksandrovich Shushpanov 0
AS198420 Nordic Telecom s.r.o 0
AS47913 Cerberos s.r.o. 0
AS47681 Nej.cz s.r.o. 0
AS198250 ELDATA prazska s.r.o. 0
AS47627 NIX.CZ z.s.p.o. 0
AS47200 NIX.CZ z.s.p.o. 0
AS50491 Planet A, a.s. 0
AS47122 inet4 s.r.o. 0
AS44910 FH Miraj-94 0
AS44672 OncaOnca Ltd. 0
AS43130 NKL LLC 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.