Czech Republic

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. 1,363,712
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
AS30764 PODA a.s. 221,184
AS5578 BENESTRA, s.r.o. 216,320
AS16019 Vodafone Czech Republic a.s. 174,592
AS28725 Ceska Telekomunikacni Infrastruktura a.s 140,544
AS25512 CD-Telematika a.s. 121,344
AS16246 RIO Media a.s. 115,712
AS15425 COMA s.r.o. 111,616
AS25248 RADIOKOMUNIKACE a.s. 107,776
AS2571 DHL Information Services (Europe) s.r.o 86,272
AS9080 Ipex Ltd. 86,016
AS15685 Casablanca INT 83,456
AS39906 CoProSys a.s. 79,104
AS12767 T-Mobile Czech Republic a.s. 68,608
AS31246 SMART Comp. a.s. 67,584
AS197451 Brno University of Technology 67,072
AS24971 Master Internet s.r.o. 59,392
AS28851 Fortech s.r.o. 58,368
AS12570 itself s.r.o. 57,856
AS15935 ha-vel internet s.r.o. 51,200
AS44489 STARNET, s.r.o. 50,688
AS24806 INTERNET CZ, a.s. 45,568
AS47965 Signalhorn Trusted Networks GmbH 44,800
AS6740 TS-Data s.r.o. 41,984
AS25424 InterneXt 2000, s.r.o. 33,792
AS42908 Nordic Telecom s.r.o 32,768
AS41046 Nej.cz s.r.o. 32,768
AS39392 SuperNetwork s.r.o. 30,720
AS34093 Suntel Net s.r.o. 28,672
AS43708 METRONET s.r.o. 24,064
AS47232 ISP Alliance a.s. 21,504
AS29134 Ignum s.r.o. 20,480
AS43541 VSHosting s.r.o. 19,712
AS34040 TTNET s.r.o. 19,456
AS39791 Telco Pro Services, a. s. 19,456
AS61296 TechCom s.r.o. 17,408
AS49931 SITKOM spol. s r.o. 17,408
AS8251 FreeTel, s.r.o. 17,408
AS197197 M.NET STUDENKA s. r. o. 16,384
AS196735 JON.CZ s.r.o. 16,384
AS196822 SELECT SYSTEM, s.r.o. 16,384
AS50022 Kristelecom Ltd. 16,384
AS20723 AVONET, s.r.o. 15,360
AS51351 LTD Objedinennaja Setevaja Kompanija 15,360
AS28972 M-SOFT, spol. s r.o. 15,360
AS42306 Edera Group a.s. 14,336
AS21430 WIA spol. s.r.o. 13,824
AS35592 Coolhousing s.r.o. 13,568
AS49985 IP4ISP z.s.p.o 13,312
AS207187 TKR Jasek, s.r.o. 13,312
AS24641 FASTER CZ spol. s r.o. 12,800
AS197013 Sprintel s.r.o. 12,800
AS48474 Suntel Net s.r.o. 12,288
AS34315 Dial Telecom, a.s. 12,288
AS15614 Dragon Internet a.s. 12,288
AS198171 HOSTING90 systems s.r.o. 11,776
AS50698 TETA s.r.o. 11,264
AS43542 OptoNet Communication, spol. s.r.o. 11,264
AS197019 WEDOS Internet, a.s. 11,264
AS196845 OMEGA tech s.r.o. 11,264
AS198605 AVAST Software s.r.o. 10,752
AS50241 UnitTelecom Ltd 10,240
AS34080 MIRAMO spol. s.r.o. 10,240
AS49106 Opticom Group CJSC 10,240
AS47834 SOFTEX NCP, s.r.o. 10,240
AS35214 Suntel Net s.r.o. 10,240
AS35361 GREPA Networks 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
AS203072 DomaTV s.r.o. 8,448
AS49889 Crystal Telecom Ltd 8,448
AS42000 Futruy s.r.o. 8,448
AS47493 WMS s.r.o. 8,192
AS25234 ACTIVE 24 8,192
AS43709 SilesNet s.r.o. 8,192
AS43507 RETE internet, s.r.o. 8,192
AS33943 Cesky Bezdrat, s.r.o. 8,192
AS35236 2 connect a.s. 8,192
AS35613 NetDataComm, s.r.o. 8,192
AS57069 Dempsey and Clark s.r.o. 8,192
AS56566 SATT a.s. 8,192
AS62160 Yes Networks Unlimited Ltd 8,192
AS51891 GSP ltd. 8,192
AS51731 GTT a.s. 8,192
AS51420 OS Cyrilek.net 8,192
AS202237 Wic-Net, s.r.o. 8,192
AS197798 Net-Connect s.r.o. 8,192
AS57800 Cadr-TV LLE TVRC 8,192
AS8913 Mopos Communications A.S. 8,192
AS198002 FDLnet.CZ, s.r.o. 8,192
AS57564 BAJA Group s.r.o. 8,192
AS201476 ISP Alliance a.s. 7,936
AS33883 TRIOPTIMUM s.r.o. 7,168
AS48926 Pe3ny Net s.r.o. 7,168
AS8518 RFE/RL, Inc., organizacni slozka 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
AS198668 Tlapnet s.r.o. 6,400
AS47114 SychrovNET s.r.o 6,144
AS51428 IRONNET Ltd. 6,144
AS197307 Core4Net, s.r.o. 6,144
AS44065 NETAIR s.r.o. 6,144
AS50025 Net Television Ltd 6,144
AS39761 ABAK, Ltd. 6,144
AS28905 BECO Link,spol.s.r.o. 6,144
AS59479 GEMNET s.r.o. 6,144
AS207198 Kabelova televize Koprivnice, s.r.o. 6,144
AS34222 ZONER software, a.s 6,144
AS200918 Pavel Zizka 6,144
AS43413 NEW TELEKOM, spol. s r.o. 6,144
AS198813 SychrovNET s.r.o 6,144
AS204860 NetX R&D z.s. 5,632
AS42477 Cerberos s.r.o. 5,120
AS49025 PRO-ZETA a.s. 5,120
AS31349 a-net Liberec s.r.o. 5,120
AS50825 UVT Internet s.r.o. 5,120
AS48494 BUKO LTD 5,120
AS198403 Matrigo s.r.o. 5,120
AS48661 AIRWAYNET, a.s. 5,120
AS39817 OvaNet, a.s. 5,120
AS41670 hkfree.org z.s. 5,120
AS197296 Maxtel s.r.o. 5,120
AS42189 Druzstvo EUROSIGNAL 5,120
AS39790 Web4U s.r.o. 5,120
AS62178 MASTER IT Technologies, a.s. 5,120
AS196843 KHnet.info, z.s. 5,120
AS30877 Ariadna-Link CJSC 5,120
AS202618 Rychly drat, s.r.o. 5,120
AS49767 INTERNET Pb, spol. s r.o. 5,120
AS207242 NOEL, s.r.o. 5,120
AS202895 TFnet s.r.o. 5,120
AS197550 Internet4you.cz, spol. s r.o. 4,864
AS52092 Alf servis, s.r.o. 4,608
AS60592 Gransy s.r.o. 4,352
AS43203 TELCONET s.r.o. 4,352
AS52115 JaroNet s.r.o. 4,096
AS196782 Marek Smutny 4,096
AS198991 CET 21 spol. s.r.o. 4,096
AS62099 JM-Net, z.s. 4,096
AS57294 Internet Expert s.r.o. 4,096
AS56360 TRINITY CZECH REPUBLIC, s.r.o. 4,096
AS56442 Lubos Hutar 4,096
AS56450 Alberon Letohrad s.r.o 4,096
AS198500 Masarykova univerzita - Ustav vypocetni techniky 4,096
AS56456 C2NET s.r.o. 4,096
AS57279 Sauron CZ s.r.o. 4,096
AS48417 ITS akciova spolecnost 4,096
AS51968 NEOS v.o.s. 4,096
AS49890 ABLE agency, s.r.o. 4,096
AS21045 QNET CZ s.r.o. 4,096
AS57496 AIRESS CESKO s.r.o. 4,096
AS29086 GiTy, a.s. 4,096
AS57287 OtavaNet s.r.o. 4,096
AS39904 MERIT GROUP a.s 4,096
AS51800 FIBER Network s.r.o. 4,096
AS47868 SUPRO, spol. s r.o. 4,096
AS204064 TaNET West s.r.o. 4,096
AS51427 HUMLNET s.r.o. 4,096
AS57399 MONEX s.r.o. 4,096
AS44070 MCnet, s.r.o. 4,096
AS197029 LAM plus s.r.o. 4,096
AS201730 DataSpring s.r.o. 4,096
AS47269 Core4Net, s.r.o. 4,096
AS57188 ORKA systems, s.r.o. 4,096
AS41453 SITEL spol. s r.o. 4,096
AS60931 LAN-Service Ltd. 4,096
AS198420 CMS Consulting s.r.o. 4,096
AS48780 OLTELECOM JSC 4,096
AS197846 Radovan Ochvat trading as SAO Computers 4,096
AS200678 ISP Alliance a.s. 3,328
AS47317 Web4ce, s.r.o. 3,072
AS34047 Bystrov Dmitriy Sergeevich 3,072
AS43037 Seznam.cz, a.s. 3,072
AS200059 AIRWEB, spol. s r.o. 3,072
AS56973 VITKOVICE IT SOLUTIONS a.s. 3,072
AS197046 FIXnet s.r.o. 3,072
AS43614 Economia a.s. 3,072
AS206548 Tlap s.r.o. 3,072
AS44002 Sys-DataCom s.r.o. 3,072
AS44712 eHAMnet, s.r.o. 3,072
AS49320 Golitsyno Telecom Ltd 3,072
AS197879 HelaPC s.r.o. 3,072
AS47727 Warnet.cz s.r.o. 3,072
AS198031 Trustica s.r.o. 3,072
AS48364 Radim Pytela - AC Vyskov 3,072
AS48298 MINISTERSTVO VNITRA CR 3,072
AS57077 AB-NET s.r.o. 3,072
AS198167 Apptocloud.com s.r.o. 2,816
AS34955 Martin Vicenik 2,816
AS47909 Baikal-Telecom Ltd. 2,560
AS202657 Pavel Jochim 2,560
AS50398 Fast Communication, s.r.o. 2,560
AS52058 Michal Najman 2,560
AS51234 Telecompany Fialka Ltd. 2,560
AS198977 UnArtel s.r.o. 2,560
AS50301 BrazdimNET s.r.o. 2,304
AS34049 H-data, spol. s r.o. 2,304
AS201811 Austole s.r.o. 2,304
AS34911 ELDATA prazska s.r.o. 2,304
AS48960 AQUA,a.s. 2,304
AS197206 BusinessCom CZ spol. s r.o. 2,304
AS44430 MaRcom-Eko s.r.o. 2,304
AS6881 NIX.CZ z.s.p.o. 2,304
AS47949 gsnet.cz s.r.o. 2,304
AS197542 Jan Saulich 2,048
AS201654 Web4Soft Internet s.r.o. 2,048
AS21241 Global Payments Europe, s.r.o. 2,048
AS201648 Plzensky kraj 2,048
AS44500 Vlasimnet s.r.o. 2,048
AS43757 ICZ a.s. 2,048
AS204165 Cznet s.r.o. 2,048
AS52029 Ing. Petr Lukes 2,048
AS197565 Golden activity s.r.o. 2,048
AS206420 KABEL servis Praha spol. s r.o. 2,048
AS61425 Mlada fronta a.s. 2,048
AS57823 INERCOM, s.r.o. 2,048
AS62011 UNHfree.net z.s. 2,048
AS50971 JHComp s.r.o. 2,048
AS60529 Miroslav Klement 2,048
AS197277 State Institute for Drug Control 2,048
AS59970 AmigoNet s.r.o. 2,048
AS43895 Zentiva k.s. 2,048
AS51400 SPOJE.NET s.r.o. 2,048
AS50442 Multi-Net plus Ltd 2,048
AS59959 SferiaNET.cz s.r.o. 2,048
AS51524 Ales Tesacek 2,048
AS203165 Statni pokladna Centrum sdilenych sluzeb, s.p. 2,048
AS50348 KVADOS, a.s. 2,048
AS51525 Informacionnuye technologiyi Ltd 2,048
AS197393 Ladislav Rudolf 2,048
AS51655 Ilim Telecom Ltd. 2,048
AS197442 ZENIT-servis s.r.o. 2,048
AS44424 Internet Mall, a.s. 2,048
AS50163 Altnet s.r.o. 2,048
AS206818 CLABOR TECH SOLUTION LLC 2,048
AS48451 Prazska energetika, a.s. 2,048
AS196684 VITALATIV, s.r.o. 2,048
AS39896 Angel Systems s.r.o. 2,048
AS198161 Sokolovska uhelna, pravni nastupce, a.s. 2,048
AS20609 KAZA.cz s.r.o. 2,048
AS47131 PH, spol. s r. o. 2,048
AS31461 Moravia IT s.r.o. 2,048
AS198282 SAT - AN CableNet SE 2,048
AS57288 StaMPi, spol. s r.o. 2,048
AS206334 AVAST Software s.r.o. 2,048
AS56624 Petr Kadanik 2,048
AS199101 Suntel Net s.r.o. 2,048
AS206429 CORSAT s.r.o 2,048
AS47913 Cerberos s.r.o. 2,048
AS50975 AVX Czech republic s.r.o 2,048
AS197083 K2 atmitec s.r.o. 2,048
AS41030 Jaroslav Novotny 2,048
AS51210 KRAXNET s.r.o. 2,048
AS197218 PP Dmutrashko Evgeny Vitalievich 2,048
AS52084 ATL Obchodni s.r.o. 2,048
AS196873 Netlancers s.r.o. 2,048
AS196861 DIGITAL ACTION s.r.o. 2,048
AS52130 LiveSport s.r.o. 2,048
AS57798 IT-Net ltd. 2,048
AS38952 MAFRA, a.s. 2,048
AS47767 Regionalni centrum Olomouc s.r.o. 2,048
AS52154 mjanik.net s.r.o. 2,048
AS52176 TTC TELEKOMUNIKACE s.r.o. 2,048
AS196815 LAN servis s.r.o. 2,048
AS200114 PRO-COMUNICATION s.r.o 2,048
AS198248 Richard Filip 2,048
AS40964 ASTELNET s.r.o. 2,048
AS57566 Wircom s.r.o. 2,048
AS200844 STUDENT AGENCY k.s. 1,792
AS51134 INTACTO GAMES a.s. 1,792
AS202921 CC INTERNET s.r.o. 1,792
AS42078 XOTEL SIA 1,792
AS196653 BEST-NET s.r.o. 1,536
AS199803 ComSource s.r.o. 1,536
AS62403 Disk Group Ltd. 1,536
AS6679 Skadi Telecom JSC 1,536
AS42995 Geotelecom Ltd. 1,536
AS48091 Kraj Vysocina 1,536
AS197694 Municipal Office of the City Prague 1,536
AS58239 hanspaul-city.net s.r.o. 1,536
AS197376 Autocont CZ a.s. 1,280
AS51211 PE Rulev Dmitriy Alexandrovich 1,280
AS197920 SKODA ICT s.r.o. 1,280
AS49013 Fusion Media, s.r.o. 1,280
AS204332 TKC system s.r.o. 1,280
AS49359 Dmitry Kozhushko 1,280
AS198725 Ultimum Technologies s.r.o. 1,280
AS47110 Cloud4com, a.s. 1,280
AS30738 NetArt Group s.r.o. 1,024
AS12984 PilsFree, z. s. 1,024
AS13199 Jaroslav Doubrava 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 Narodni bezpecnostni urad 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
AS201179 Vaudevile s.r.o. 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
AS204992 Netragy, LLC 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
AS210306 ADV Computers s.r.o. 1,024
AS25238 MONETA Money Bank, a.s. 1,024
AS29504 Freenet Liberec, z.s. 1,024
AS12344 CZECH IT CLUSTER, druzstvo 1,024
AS31559 Zdenek Soucek 1,024
AS35096 Alef Nula a.s. 1,024
AS35420 Perspektiva Ltd. 1,024
AS39307 Digital Communications Ltd. 1,024
AS39736 ICT Support, s.r.o. 1,024
AS41779 LajsiNET s.r.o. 1,024
AS42269 Foton Ltd 1,024
AS43129 Smileinvest LTD 1,024
AS44770 Savvy s.r.o. 1,024
AS44910 FH Miraj-94 1,024
AS44984 Fortion Networks, s.r.o. 1,024
AS47681 RIO Media a.s. 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
AS25553 TRK Gluhov Ltd. 768
AS203208 Czech Telecommunication Office 768
AS199220 KrU Stredoceskeho kraje 768
AS206712 FELDSAM s.r.o. 768
AS48098 Valikov Yury Aleksandrovich 768
AS51278 Ignum s.r.o. 768
AS59888 PE Grinkiv Nadia Oliksandrivna 768
AS57472 JR-NET, s.r.o. 768
AS196943 VISSADO s.r.o. 768
AS21205 ING WholeSale Bank 768
AS50037 Server Ltd 512
AS200806 BOHEMIA ENERGY entity s.r.o. 512
AS50321 FOP "Reznichenko Sergey Mykolayovich" 512
AS203080 SAP SE 512
AS204668 ASTANA Technologies s.r.o. 512
AS206591 Alza.cz a.s. 512
AS200070 CZ.NIC, z.s.p.o. 512
AS50695 VLTAVA LABE MEDIA a.s. 512
AS49121 Infinity Telecom, s.r.o. 512
AS56988 Mobile & Television Communications LLC 512
AS198953 PricewaterhouseCoopers IT Services, s.r.o. 512
AS196916 BusinessCom CZ spol. s r.o. 512
AS62083 Fio banka, a.s. 512
AS197144 PP SVS Stream 512
AS198621 AVAST Software s.r.o. 512
AS198564 Elcoma s.r.o. 512
AS49313 Seva-Host Ltd 512
AS198143 Ceska Posta s.p. 512
AS198103 CCS Ceska spolecnost pro platebni karty s.r.o. 512
AS50899 Roman Bykovskyj 512
AS49334 Sergey Krashevich 512
AS197815 AVAST Software s.r.o. 512
AS196789 Norfes JSC 512
AS57919 Wicom Ltd. 512
AS197698 D-H-T SYSTEMS s.r.o. 512
AS196764 RFI Minprirody Rossii FBGU 512
AS59681 Satellit PE 512
AS197353 NN Management Services, s.r.o. 512
AS205719 Data & File Processing s.r.o. 512
AS206785 Magistrat mesta Brna 512
AS49506 GumsNet Ltd 512
AS202131 ISP Alliance a.s. 512
AS51245 Center of Information Technologies Ltd. 512
AS42174 Sipcom Ltd. 512
AS49510 TCV Ltd 512
AS49580 Monet +, a.s. 512
AS196687 obcanske sdruzeni TRENET 512
AS43130 NKL LLC 512
AS30928 ZAO Rubtsovsk 512
AS201934 Ing. Jan Kolar 512
AS201931 LBnet.cz s.r.o. 512
AS51448 Uralskie Kabelnye Seti Ltd. 512
AS43866 Altron a.s. 512
AS25321 GROUP 4 Secure Solutions a.s. 512
AS49997 Piton Ltd 512
AS50015 Oleksandr Butenko 512
AS51727 SKODA POWER s.r.o. 512
AS201608 UnArtel s.r.o. 512
AS203645 Jan Ryznar 512
AS60275 PlzenecNET z. s. 512
AS48802 OOO "Povolzhskiy Processingoviy Center" 256
AS61123 Ekoniva-Tehnika Ltd. 256
AS48890 SOLVO ltd 256
AS60724 Sicuro Services s. r. o. 256
AS61166 Russian Federal Service for Alcohol Market Regulation 256
AS50097 IPVOIP s.r.o. 256
AS197566 OK-NET s.r.o. 256
AS59552 VHG Ltd 256
AS51884 Tera Telecom Ltd 256
AS206329 Infor (Barneveld) BV 256
AS59825 Green Technology Ltd. 256
AS59826 PE Oleynik Dmitro Oleksandrovich 256
AS196762 ALKOM Security, a.s. 256
AS50248 Vladivostok international airport JSC 256
AS9053 VSHosting s.r.o. 256
AS28892 Cesky urad zememericky a katastralni 256
AS41359 Telefonzentrale s.r.o. 256
AS60218 IT8 - Informacni technologie s.r.o. 256
AS201594 Czech Telecommunication Office 256
AS41591 Jaroslav Masaryk 256
AS50356 Camelot Ltd 256
AS20701 Marias sro 256
AS204113 Security Information Service 256
AS44672 OncaOnca Ltd. 256
AS61371 FOP Martsinkevich Vyacheslav Anatolyevich 256
AS202084 Penta Investments, s.r.o. 256
AS202073 ALTRON Business Solutions, a.s. 256
AS48405 Logica Czech republic s.r.o. 256
AS199806 DCIT, a.s. 256
AS199665 Hana Juzkova 256
AS39453 KSRZIS 256
AS56508 Regionecoproduct-Povolzhie Ltd. 256
AS61416 STATE AUTONOMOUS ESTABLISHMENT OF THE ARKHANGELSK REGION "MANAGEMENT OF INFORMATION AND COMMUNICATION TECHNOLOGY OF ARKHANGELSK REGION" 256
AS199604 OLOMOUCKY KRAJ 256
AS200646 BH securities, a.s. 256
AS56717 OG Soft s.r.o. 256
AS203299 Ivo Hazmuk 256
AS56891 Ceskomoravska zarucni a rozvojova banka, a.s. 256
AS56894 Balezinskie lokalnyie seti, Ltd. 256
AS206683 Moravskoslezske inovacni centrum Ostrava, a.s. 256
AS20884 O2 Czech Republic, a.s. 256
AS61985 Technolink Ltd. 256
AS199059 Maurice Ward & Co., s.r.o. 256
AS15741 Expiline Ltd. 256
AS25093 Ceska sporitelna a.s. 256
AS201263 Brno University of Technology 256
AS34293 J.S.tel s.r.o. 256
AS62092 LTV Europe Sicherheitstechnik GmbH i.G. 256
AS57194 CHP Koshelnik Sergey Valentinovich 256
AS42847 GlobexBank JSC 256
AS51463 FAJNCOM s.r.o. 256
AS33877 Druzstvo OFX 256
AS198494 PREGIS, a.s 256
AS206468 Treboradice.net z.s. 256
AS57376 Vaclav Rosa 256
AS50250 Stavropol Committee for state purchases 256
AS47924 Grigory Aleksandrovich Shushpanov 256
AS50843 ACUTUS ltd. 256
AS196849 Marcela Byrtusova 256
AS49833 Alexandr Y Potkin 256
AS3229 Intek Ltd. 256
AS57572 Lesta Ltd. 256
AS15380 Air Navigation Services of the Czech Republic, state enterprise 256
AS57760 Kinet s.r.o. 256
AS44104 LCJ s.r.o. 256
AS205724 T.S.BOHEMIA a.s. 256
AS197875 UNIPETROL RPA, s.r.o. 256
AS60208 J&T BANKA, a.s. 0
AS207167 amccomp s.r.o. 0
AS47122 inet4 s.r.o. 0
AS207048 SPANET s.r.o. 0
AS47200 NIX.CZ z.s.p.o. 0
AS206832 Yes Networks Unlimited Ltd 0
AS206613 Tipsport.net a.s. 0
AS206463 Pavel Zizka 0
AS206384 Artemis Hosting s.r.o. 0
AS206321 STARTECH spol. s r.o. 0
AS206050 FreeNetwork s.r.o. 0
AS48268 Inter Fiber s.r.o. 0
AS205982 Mraknet s.r.o. 0
AS205885 Navmatix s.r.o. 0
AS205857 Diverse Path Solutions Inc 0
AS205549 FixPro,z.s. 0
AS205123 Adept Media Group s.r.o. 0
AS197246 Glow Internet s.r.o. 0
AS205122 RA Pioneers s.r.o. 0
AS205121 HOT Communication s.r.o. 0
AS205090 NTX Technologies s.r.o. 0
AS48959 OOO "Paladin Invent" 0
AS204907 Air Bank a.s. 0
AS204746 Komplet NET s.r.o. 0
AS49018 Alphatech Resource Holdings s.r.o. 0
AS204666 Jiri Tlapak 0
AS204505 IT & WP HOST s.r.o. 0
AS204405 Durnet.cz sro 0
AS204375 SychrovNET s.r.o 0
AS49418 Domashnie Seti Ltd 0
AS49459 Sigma plus Ltd. 0
AS60647 Prazska plynarenska,a.s. 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
AS204051 FLEA s.r.o. 0
AS203743 ISP Alliance a.s. 0
AS50107 tcp cloud a.s. 0
AS203488 DaLuNET s.r.o. 0
AS203342 Ladislav Rudolf 0
AS60727 K2 atmitec s.r.o. 0
AS202911 Diovetech s.r.o. 0
AS50491 Planet A, a.s. 0
AS197059 HOTNET s.r.o. 0
AS202888 KETNET s.r.o. 0
AS50714 Closed Joint Stock Company TransTeleCom 0
AS15731 Reliable Communications s.r.o. 0
AS202733 OK COMP s.r.o. 0
AS202732 Ing Petr Sramek 0
AS202522 Suntel Net s.r.o. 0
AS51105 CIS TELECOM UK LTD 0
AS202297 Filip Hruska 0
AS51154 Nej.cz s.r.o. 0
AS51331 SychrovNET s.r.o 0
AS202066 Nas NET s.r.o. 0
AS15512 UPC Ceska Republica, s.r.o. 0
AS61195 Peering.cz s.r.o. 0
AS201987 HEXAGEEK s.r.o. 0
AS51403 FOP Ljashenko Igor Ivanovich 0
AS51424 Jiri Sperl 0
AS201922 amccomp s.r.o. 0
AS51449 Kabelova televize Usti nad Orlici, spol. s r. o. 0
AS51521 KmNet s.r.o. 0
AS201761 ISP Alliance a.s. 0
AS201732 Maxicom Technologies s.r.o. 0
AS201671 Emerald Real Group s.r.o. 0
AS197026 Galevi s.r.o. 0
AS51801 Nano.cz s.r.o. 0
AS201464 ISP Alliance a.s. 0
AS51902 Web4Soft Internet s.r.o. 0
AS51961 Doyter Group Limited 0
AS52027 Leos Zalio 0
AS201228 Czech metrology institute 0
AS201187 Whois protection s.r.o. 0
AS201007 Tesco Stores CR a.s. 0
AS200809 ASJA CZ s.r.o. 0
AS200733 ALLDIM s.r.o. 0
AS200673 AMARTI s.r.o. 0
AS5407 PODA a.s. 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
AS56427 Michal Hradil 0
AS199630 Municipal Office of the City Prague 0
AS15494 BT Limited, organizacni slozka 0
AS198882 Karlovarsky Kraj 0
AS198510 Krajska zdravotni, a.s. 0
AS198250 ELDATA prazska s.r.o. 0
AS57523 AMEuroTel s.r.o. 0
AS198027 VITKOVICE IT SOLUTIONS a.s. 0
AS8747 Dial Telecom, a.s. 0
AS57780 VISSADO s.r.o. 0
AS201267 Kapchan company spol. s r.o. 0
AS15485 T-Mobile Czech Republic a.s. 0
AS41267 GREPA Networks s.r.o. 0
AS41456 KP NETWORK, spol. s r.o. 0
AS41088 N-SYS s.r.o. 0
AS41711 FreeTel, s.r.o. 0
AS59969 FOP Kameristov Andrey Evgenovuch 0
AS41824 O2 Czech Republic, a.s. 0
AS39408 AVI druzstvo 0
AS34371 Metropolitni s.r.o. 0
AS197299 CENTEL s.r.o. 0
AS34302 Sprintel s.r.o. 0
AS34070 DATin internet s.r.o. 0
AS3234 Parliament of the Czech Republic 0
AS43043 OPSYLON LLC. 0
AS29525 Virtualmaster, s.r.o. 0
AS29274 Obcanske sdruzeni GAVANET 0
AS29113 UPC Ceska Republica, s.r.o. 0
AS28904 PODA a.s. 0
AS28755 ha-vel internet s.r.o. 0
AS2819 T-Mobile Czech Republic a.s. 0
AS2605 CESNET z.s.p.o. 0
AS25036 O2 Czech Republic, a.s. 0
AS24828 UPC Ceska Republica, s.r.o. 0
AS21435 Vodafone Czech Republic a.s. 0
AS21142 T-Mobile Czech Republic a.s. 0
AS210325 Air Networks s.r.o. 0
AS6706 Dial Telecom, a.s. 0
AS60143 Brno University of Technology 0
AS207239 NetX R&D z.s. 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.