The list below shows how many ASNs are assigned to each country. Click on the country links to see more details about the specific ASNs and IP addresses that belong to each country.
| ASN | Name | IPv4 Num IPs | IPv6 Num IPs(/64) |
|---|---|---|---|
| AS2118 | RELCOM-AS - Reliable Communications s.r.o., CZ | 5,632 | 0 |
| AS2571 | DHLNET - DHL Information Services (Europe) s.r.o, CZ | 154,368 | 3,211,264 |
| AS2578 | DEMOS-AS - Demos, Moscow, Russia, CZ | 256 | 0 |
| AS2852 | CESNET2 - CESNET z.s.p.o., CZ | 849,920 | 34,359,738,368 |
| AS3161 | ASITPROFI - IT PROFI s.r.o., CZ | 512 | 0 |
| AS5588 | GTSCE - T-Mobile Czech Republic a.s., CZ | 139,264 | 8,589,934,592 |
| AS5610 | O2-CZECH-REPUBLIC - O2 Czech Republic, a.s., CZ | 1,542,912 | 47,244,705,792 |
| AS6740 | INEXT-CZ-ADA - InterneXt 2000, s.r.o., CZ | 41,984 | 0 |
| AS6881 | NIXCZ - NIX.CZ z.s.p.o., CZ | 2,560 | 4,294,967,296 |
| AS8251 | NFX_ZSPO - FreeTel, s.r.o., CZ | 17,408 | 4,294,967,296 |
| AS8646 | cloudinfrastack - cloudinfrastack, s.r.o., CZ | 1,024 | 0 |
| AS8882 | AS8882 - AS8882 s.r.o., CZ | 0 | 65,536 |
| AS8913 | IPNet - Mopos Communications A.S., CZ | 8,192 | 4,294,967,296 |
| AS9053 | VSHOSTING-CDN - VSHosting s.r.o., CZ | 256 | 196,608 |
| AS9080 | GIN - Ipex A.S, CZ | 26,624 | 4,294,967,296 |
| AS12344 | CZECHITC - CZECH IT CLUSTER, druzstvo, CZ | 1,024 | 8,589,934,592 |
| AS12570 | ITSELF - O2 Czech Republic, a.s., CZ | 53,760 | 38,654,705,664 |
| AS12767 | PRAGONET-AS - T-Mobile Czech Republic a.s., CZ | 66,560 | 34,359,738,368 |
| AS12984 | PILSFREE - PilsFree, z. s., CZ | 1,024 | 34,359,738,368 |
| AS13036 | TMOBILE-CZ - T-Mobile Czech Republic a.s., CZ | 958,464 | 38,654,705,664 |
| AS13199 | DOUBRAVA-NET - Jaroslav Doubrava, CZ | 1,024 | 34,359,738,368 |
| AS15380 | ANSCZ - Air Navigation Services of the Czech Republic, state enterprise, CZ | 256 | 65,536 |
| AS15425 | COMA - PODA a.s., CZ | 110,592 | 4,294,967,296 |
| AS15614 | Dragon - Dragon Internet a.s., CZ | 19,456 | 38,654,705,664 |
| AS15685 | CASABLANCA-AS - CASABLANCA INT a.s., CZ | 34,304 | 4,294,967,296 |
| AS15935 | HA-VEL-LOCAL-AS - ha-vel internet s.r.o., CZ | 49,664 | 4,295,163,904 |
| AS16019 | VODAFONE-CZ-AS - Vodafone Czech Republic a.s., CZ | 1,210,368 | 326,417,580,032 |
| AS16246 | AS16246 - O2 Czech Republic, a.s., CZ | 133,120 | 38,654,705,664 |
| AS20609 | kazaczsro - KAZA.cz s.r.o., CZ | 2,048 | 4,294,967,296 |
| AS20643 | CZ-PILSFREESERVIS-AS - PilsFree servis, s.r.o., CZ | 1,024 | 34,359,738,368 |
| AS20701 | CZNIC-AS3 - CZ.NIC, z.s.p.o., CZ | 512 | 131,072 |
| AS20708 | SKODA-AUTO - SKODA AUTO a.s., CZ | 1,024 | 65,536 |
| AS20723 | MGI - AVONET, s.r.o., CZ | 16,384 | 34,359,738,368 |
| AS21045 | QnetCZ - K-net Technical International Group, s.r.o., CZ | 4,096 | 0 |
| AS21241 | MUZO-AS - Global Payments Europe, s.r.o., CZ | 2,048 | 0 |
| AS21430 | WIA-AS - WIA spol. s.r.o., CZ | 40,448 | 4,295,229,440 |
| AS24641 | FASTER-AS - FASTER CZ spol. s r.o., CZ | 17,920 | 8,589,934,592 |
| AS24806 | INTERNET-CZ - INTERNET CZ, a.s., CZ | 45,824 | 4,294,967,296 |
| AS24971 | MASTER-AS - MasterDC s.r.o., CZ | 58,880 | 90,261,618,688 |
| AS25093 | CSAS-CZ - Ceska sporitelna a.s., CZ | 512 | 0 |
| AS25192 | CZNIC-AS - CZ.NIC, z.s.p.o., CZ | 6,400 | 4,295,360,512 |
| AS25234 | ACTIVE24-AS - ACTIVE 24, s.r.o., CZ | 7,680 | 8,590,000,128 |
| AS25238 | MONETA-CZ - MONETA Money Bank, a.s., CZ | 1,024 | 65,536 |
| AS25248 | BlueTone-AS - RADIOKOMUNIKACE a.s., CZ | 106,752 | 4,295,032,832 |
| AS25321 | G4S-NET - Brink's Cash Solutions (CZ), a.s., CZ | 512 | 0 |
| AS25424 | INEXT-CZ - InterneXt 2000, s.r.o., CZ | 33,792 | 68,719,476,736 |
| AS25512 | CDT-AS - CD-Telematika a.s., CZ | 117,760 | 4,294,967,296 |
| AS28725 | CETIN-AS - CETIN a.s., CZ | 133,888 | 38,654,705,664 |
| AS28892 | CUZK-NET - Cesky urad zememericky a katastralni, CZ | 256 | 65,536 |
| AS28905 | BECOLINK-AS - BECO Link,spol.s.r.o., CZ | 7,168 | 0 |
| AS28972 | MSOFT-AS - M-SOFT, spol. s r.o., CZ | 12,800 | 68,719,476,736 |
| AS29086 | GITY-AS - GiTy, a.s., CZ | 4,096 | 4,294,967,296 |
| AS29134 | IGNUM-AS - Webglobe, s.r.o., CZ | 20,992 | 43,218,108,416 |
| AS29208 | QUANTCOM-AS - Quantcom, a.s., CZ | 255,488 | 12,884,901,888 |
| AS29321 | CentroNetAS - O2 Czech Republic, a.s., CZ | 15,360 | 4,294,967,296 |
| AS29504 | LBCFREE - Freenet Liberec, z.s., CZ | 1,024 | 34,359,738,368 |
| AS29583 | UNIENT-AS - Spinoco Czech Republic, a.s., CZ | 6,144 | 0 |
| AS30738 | NETART-AS - NetArt Group s.r.o., CZ | 512 | 2,147,483,648 |
| AS30764 | PODA-AS - PODA a.s., CZ | 222,208 | 8,589,934,592 |
| AS31246 | NETBOX-AS - O2 Czech Republic, a.s., CZ | 66,560 | 42,949,672,960 |
| AS31349 | a-net - a-net Liberec s.r.o., CZ | 5,120 | 34,359,738,368 |
| AS31461 | MORAVIA-IT-AS - Moravia IT s.r.o., CZ | 2,048 | 0 |
| AS33883 | TRIONET-CZ-AS - TRIOPTIMUM s.r.o., CZ | 7,168 | 34,359,738,368 |
| AS33943 | CBEZDRAT-AS - Eri Internet s.r.o., CZ | 8,192 | 34,359,738,368 |
| AS34040 | CZTTNET-AS - TTNET s.r.o., CZ | 13,312 | 4,294,967,296 |
| AS34049 | WOSACZ-AS - H-data, spol. s r.o., CZ | 2,048 | 34,359,738,368 |
| AS34080 | MIRAMO-AS - MIRAMO spol. s.r.o., CZ | 11,264 | 4,294,967,296 |
| AS34222 | ZONER-AS - ZONER a.s., CZ | 6,144 | 4,294,967,296 |
| AS34315 | MAXNET-AS - Quantcom, a.s., CZ | 12,288 | 4,294,967,296 |
| AS34475 | Agrostroj - Agrostroj Pelhrimov, a.s., CZ | 1,024 | 0 |
| AS34487 | southpraguenet - SouthPrague.Net, z.s., CZ | 256 | 34,359,738,368 |
| AS34596 | HVfree - HVfree.net servis. s.r.o., CZ | 512 | 34,359,738,368 |
| AS34819 | h17 - H17 Networks, s.r.o., CZ | 1,024 | 34,359,738,368 |
| AS34911 | ASELDATA - ELDATA prazska s.r.o., CZ | 3,584 | 0 |
| AS34955 | ASVICENIK - Martin Vicenik, CZ | 3,072 | 0 |
| AS35046 | OMEGAPLUS-AS - OMEGA plus Chrudim s.r.o., CZ | 7,168 | 4,294,967,296 |
| AS35096 | ALEFNULA - Alef Nula a.s., CZ | 1,024 | 65,536 |
| AS35236 | AS35236 - UVT Internet s.r.o., CZ | 10,496 | 55,834,640,384 |
| AS35592 | COOLHOUSING-AS - Coolhousing s.r.o., CZ | 12,544 | 4,295,163,904 |
| AS35613 | NETDATACOMM - NetDataComm, s.r.o., CZ | 9,216 | 4,294,967,296 |
| AS38952 | MAFRA-CZ-AS - MAFRA, a.s., CZ | 2,048 | 0 |
| AS39050 | NETSERVICE-AS - NET service solution, s.r.o., CZ | 256 | 34,359,738,368 |
| AS39392 | SuperNetwork - SH.cz s.r.o., CZ | 31,744 | 73,014,509,568 |
| AS39453 | UZIS-AS - Ustav zdravotnickych informaci a statistiky Ceske republiky, CZ | 256 | 0 |
| AS39455 | Tlapnet-SK-AS - Jiri Tlapak, CZ | 1,024 | 0 |
| AS39736 | ICTSUPPORT - ICT Support, s.r.o., CZ | 1,024 | 34,359,738,368 |
| AS39761 | ABAK - ABAK, Co.Ltd., CZ | 10,240 | 38,654,705,664 |
| AS39790 | WEB4U - Web4U s.r.o., CZ | 5,120 | 4,294,967,296 |
| AS39791 | TPS-AS - Telco Pro Services, a. s., CZ | 18,688 | 4,295,032,832 |
| AS39817 | OVANET - OvaNet, a.s., CZ | 4,352 | 4,294,967,296 |
| AS39904 | MERIT-AS - MERIT GROUP a.s, CZ | 4,096 | 4,294,967,296 |
| AS39906 | COPROSYS - CoProSys a.s., CZ | 37,376 | 4,295,032,832 |
| AS40964 | ASTELNET - ASTELNET s.r.o., CZ | 768 | 0 |
| AS41030 | ASNOVOTNYCZ - Jaroslav Novotny, CZ | 1,792 | 0 |
| AS41046 | NEJTV-AS - O2 Czech Republic, a.s., CZ | 32,768 | 34,359,803,904 |
| AS41088 | CZNSYS - "N_SYS s.r.o.", CZ | 9,216 | 4,295,032,832 |
| AS41359 | TELEFONZENTRALE-AS - Telefonzentrale s.r.o., CZ | 256 | 0 |
| AS41453 | TRESTEL-CZ-ASN - SITEL spol. s r.o., CZ | 5,120 | 38,654,705,664 |
| AS41670 | HKFREE-AS - hkfree.org z.s., CZ | 5,120 | 34,359,738,368 |
| AS41779 | LAJSINET - LajsiNET s.r.o., CZ | 1,024 | 34,359,738,368 |
| AS42000 | KAORA - Futruy s.r.o., CZ | 7,424 | 34,359,738,368 |
| AS42189 | EUROSIGNAL-AS - Druzstvo EUROSIGNAL, CZ | 7,168 | 34,359,738,368 |
| AS42306 | EDERA_Group - Edera Group a.s., CZ | 20,480 | 137,438,953,472 |
| AS42422 | SECURITYNET-AS - SecurityNet.cz s.r.o., CZ | 2,816 | 4,295,032,832 |
| AS42726 | BUSINESSCOM - BusinessCom CZ spol. s r.o., CZ | 1,536 | 0 |
| AS42908 | CZ-NORDICTELECOMREGIONAL - O2 Czech Republic, a.s., CZ | 183,296 | 163,208,822,784 |
| AS43037 | SEZNAM-CZ - Seznam.cz, a.s., CZ | 3,072 | 4,294,967,296 |
| AS43070 | JAW-AS - JAW.cz s.r.o., CZ | 9,728 | 12,884,901,888 |
| AS43413 | ASNEW - NEW TELEKOM, spol. s r.o., CZ | 6,144 | 34,359,738,368 |
| AS43500 | WBD-AS - HBO Europe s.r.o., CZ | 1,024 | 262,144 |
| AS43507 | RETE-AS - RETE internet, s.r.o., CZ | 8,192 | 0 |
| AS43523 | DESIGN-AS - A.T.S. INTERNATIONAL s.r.o, CZ | 1,024 | 0 |
| AS43541 | VSHOSTING - VSHosting s.r.o., CZ | 18,176 | 42,949,804,032 |
| AS43542 | OptoNet-AS - OptoNet Communication, spol. s.r.o., CZ | 9,216 | 4,294,967,296 |
| AS43614 | ECONOMIA-CZ - Economia a.s., CZ | 3,072 | 4,294,967,296 |
| AS43708 | METRONET - DATAMAT CZ s.r.o., CZ | 16,384 | 0 |
| AS43709 | SILESNET - SilesNet s.r.o., CZ | 8,192 | 4,294,967,296 |
| AS43757 | ICZAS-CZ - ICZ a.s., CZ | 2,304 | 65,536 |
| AS43866 | ALTRON - Altron a.s., CZ | 512 | 0 |
| AS44002 | SYS-DATACOM - Sys-DataCom s.r.o., CZ | 3,072 | 4,294,967,296 |
| AS44065 | NETAIR-AS - NETAIR, s.r.o., CZ | 6,144 | 34,359,738,368 |
| AS44070 | MCnet-AS - O2 Czech Republic, a.s., CZ | 4,096 | 34,359,738,368 |
| AS44104 | LCJ-AS - LCJ Invest, a.s., CZ | 256 | 0 |
| AS44424 | AS44424 - Allegro Retail a.s., CZ | 2,048 | 4,294,967,296 |
| AS44430 | MaRcom-Eko-AS - MaRcom-Eko s.r.o., CZ | 2,048 | 0 |
| AS44489 | Starnet - STARNET, s.r.o., CZ | 64,256 | 115,964,116,992 |
| AS44500 | vlasimnet - Vlasimnet s.r.o., CZ | 2,048 | 4,294,967,296 |
| AS44546 | ALFATELECOM-AS - ALFA TELECOM s.r.o., CZ | 526,848 | 0 |
| AS44712 | eHAMnet-AS - eHAMnet, s.r.o., CZ | 2,048 | 34,359,738,368 |
| AS44770 | SAVVY-AS - Savvy s.r.o., CZ | 1,024 | 65,536 |
| AS44984 | Fortion - Fortion Networks, s.r.o., CZ | 1,024 | 4,294,967,296 |
| AS46553 | AS46553 - AS46553 s.r.o., CZ | 0 | 65,536 |
| AS47110 | CLOUD4COM-AS - Cloud4com s.r.o., CZ | 4,608 | 4,294,967,296 |
| AS47114 | ZLINNET - SychrovNET s.r.o, CZ | 6,144 | 4,294,967,296 |
| AS47131 | PH - PH, spol. s r. o., CZ | 2,048 | 0 |
| AS47232 | ISPAlliance - ISP Alliance a.s., CZ | 21,760 | 103,079,215,104 |
| AS47269 | HLUCIN-NET-AS - Core4Net, s.r.o., CZ | 4,096 | 34,359,738,368 |
| AS47317 | WEB4CE - Web4ce, s.r.o., CZ | 3,072 | 34,359,738,368 |
| AS47493 | WMS-AS - WMS s.r.o., CZ | 8,192 | 4,294,967,296 |
| AS47681 | RIOMEDIA - O2 Czech Republic, a.s., CZ | 1,024 | 0 |
| AS47727 | WARNETCZ-AS - Warnet.cz s.r.o., CZ | 1,024 | 4,294,967,296 |
| AS47749 | ORIFLAME-AS - ORIFLAME SOFTWARE s.r.o., CZ | 1,024 | 65,536 |
| AS47767 | RCO-AS - Regionalni centrum Olomouc s.r.o., CZ | 2,048 | 4,294,967,296 |
| AS47834 | SOFTEXNCP-AS - SOFTEX NCP, s.r.o., CZ | 11,264 | 34,359,738,368 |
| AS47868 | SUPRO-AS - SUPRO, spol. s r.o., CZ | 4,096 | 4,294,967,296 |
| AS47949 | GSNETCZ - gsnet.cz s.r.o., CZ | 2,048 | 0 |
| AS48091 | ROWANet-AS - Kraj Vysocina, CZ | 1,024 | 4,295,032,832 |
| AS48131 | IXOXI - IXOXI s.r.o., CZ | 512 | 8,589,934,592 |
| AS48298 | GOVCZ - MINISTERSTVO VNITRA CR, CZ | 3,072 | 4,294,967,296 |
| AS48364 | ACVYSKOV-AS - Radim Pytela trading as AC Vyskov, CZ | 3,072 | 4,294,967,296 |
| AS48405 | CGI-CZ-AS1 - CGI IT Czech Republic s.r.o., CZ | 256 | 0 |
| AS48417 | ITS-CZ - ITS akciova spolecnost, CZ | 4,096 | 4,294,967,296 |
| AS48451 | PRE-AS - Prazska energetika, a.s., CZ | 2,048 | 4,294,967,296 |
| AS48574 | ASN-CZ-PLANET-A-48574 - T-Mobile Czech Republic a.s., CZ | 9,216 | 0 |
| AS48602 | CONNECTPLUS - Connect plus s.r.o., CZ | 1,024 | 34,359,738,368 |
| AS48661 | AIRWAYNET - AIRWAYNET, a.s., CZ | 5,120 | 4,294,967,296 |
| AS48889 | GLOBECORP-AS-CZ - GLOBECORP a.s., CZ | 1,024 | 0 |
| AS48926 | PE3NY-AS - Pe3ny Net s.r.o., CZ | 11,264 | 8,589,934,592 |
| AS48960 | MORAVANET - AQUA,a.s., CZ | 1,280 | 4,294,967,296 |
| AS49013 | Fusion_Media - Fusion Media, s.r.o., CZ | 1,280 | 0 |
| AS49025 | PROZETA-NET - PRO-ZETA a.s., CZ | 3,328 | 268,435,456 |
| AS49095 | P12com - PRAHA12.com s.r.o., CZ | 1,024 | 34,359,738,368 |
| AS49101 | KTCT-ASN - KABELOVA TELEVIZE CZ s.r.o., CZ | 16,384 | 8,589,934,592 |
| AS49121 | INFTELE-AS - Infinity Telecom, s.r.o., CZ | 6,144 | 524,288 |
| AS49142 | HBO - HBO Europe s.r.o., CZ | 512 | 0 |
| AS49244 | SCANCOM - Scancom s.r.o., CZ | 256 | 34,359,738,368 |
| AS49262 | ATCCZ1 - Ataccama Software, s.r.o., CZ | 256 | 34,359,738,368 |
| AS49573 | ASJIMMY - JimmyNet s.r.o., CZ | 1,024 | 34,359,738,368 |
| AS49580 | MONETPLUS-AS - Monet +, a.s., CZ | 512 | 0 |
| AS49767 | INTERNETPB-AS - O2 Czech Republic, a.s., CZ | 5,120 | 4,294,967,296 |
| AS49890 | ADA-NET-AS - ABLE agency, s.r.o., CZ | 4,096 | 34,359,738,368 |
| AS49985 | IP4ISP - IP4ISP z.s.p.o, CZ | 17,408 | 4,294,967,296 |
| AS50067 | cesal - CESAL s.r.o., CZ | 1,024 | 34,359,738,368 |
| AS50097 | IPVOIP-AS - IPVOIP s.r.o., CZ | 256 | 0 |
| AS50163 | altnet-skvelynet - Altnet s.r.o., CZ | 2,048 | 4,294,967,296 |
| AS50301 | ASN-BRAZDIMNET - BrazdimNET s.r.o., CZ | 2,304 | 0 |
| AS50338 | GAMERHOST - GamerHost s.r.o., CZ | 768 | 4,294,967,296 |
| AS50348 | KVADOS - KVADOS, a.s., CZ | 2,048 | 4,294,967,296 |
| AS50398 | FASTCOMMUNICATIONS - Fast Communication, s.r.o., CZ | 3,072 | 65,536 |
| AS50415 | Ahosting - Ahosting a.s., CZ | 1,024 | 34,359,738,368 |
| AS50695 | VLP-AS - VLTAVA LABE MEDIA a.s., CZ | 512 | 65,536 |
| AS50698 | TETA - TETA s.r.o., CZ | 11,264 | 34,359,738,368 |
| AS50784 | intraweb - Intraweb servis s.r.o., CZ | 1,024 | 34,359,738,368 |
| AS50825 | UVT - UVT Internet s.r.o., CZ | 7,168 | 34,359,738,368 |
| AS50833 | FIBERTEL-AS - FIBER TELECOM s.r.o., CZ | 256 | 262,144 |
| AS50971 | JHCOMP-AS - JHComp s.r.o., CZ | 2,048 | 4,294,967,296 |
| AS50975 | AVX_AS - KYOCERA AVX Components s.r.o., CZ | 2,048 | 0 |
| AS50980 | net3 - cloudinfrastack, s.r.o., CZ | 1,024 | 0 |
| AS51025 | CONNECT-TST-AS - VSHosting s.r.o., CZ | 256 | 0 |
| AS51134 | INTACTO-AS - Development 777 s.r.o., CZ | 1,792 | 34,359,803,904 |
| AS51210 | KRAXNET-AS - KRAXNET s.r.o., CZ | 2,048 | 65,536 |
| AS51248 | HOST-TELECOM - Host-Telecom.com s.r.o., CZ | 11,520 | 4,295,229,440 |
| AS51278 | IGNUM-ANYCAST-AS - Webglobe, s.r.o., CZ | 256 | 65,536 |
| AS51331 | ModernTV - SychrovNET s.r.o, CZ | 1,536 | 50,331,648 |
| AS51382 | COMANET-NETWORK - Ing. Leos Janouch, CZ | 1,024 | 65,536 |
| AS51400 | ASSPOJENET - SPOJE.NET s.r.o., CZ | 2,048 | 65,536 |
| AS51420 | CYRILEK-AS - cyrilek.net z.s., CZ | 8,704 | 0 |
| AS51424 | ASAGNET - Jiri Sperl, CZ | 1,792 | 0 |
| AS51449 | KTUO-AS - Kabelova televize Usti nad Orlici, spol. s r. o., CZ | 1,024 | 4,294,967,296 |
| AS51463 | ASFAJNCOMCZ - FAJNCOM s.r.o., CZ | 256 | 0 |
| AS51521 | ASKMNET - Resident Control Telco s.r.o., CZ | 512 | 0 |
| AS51524 | ASNETDELUXE - Ales Tesacek, CZ | 2,048 | 0 |
| AS51586 | SERVERZONECZ - ServerZone s.r.o., CZ | 1,280 | 8,589,934,592 |
| AS51661 | ALLSTARNET - Allstar Net s.r.o., CZ | 1,024 | 4,294,967,296 |
| AS51727 | SKODAPOWER-AS - Doosan Skoda Power s.r.o, CZ | 512 | 0 |
| AS51744 | ASJABLONKA - Non-profit organization Jablonka.cz, CZ | 1,024 | 65,536 |
| AS51800 | FIBERNET-ASN - FIBER Network s.r.o., CZ | 2,048 | 4,294,967,296 |
| AS51968 | NEOS-AS - NEOS v.o.s., CZ | 4,096 | 0 |
| AS52029 | ASNOVOSEDLY - Palanet s.r.o., CZ | 2,048 | 0 |
| AS52058 | petrkovice_net - za200.cz s.r.o., CZ | 2,560 | 0 |
| AS52084 | ATLELEKTROCZ - ISP Alliance a.s., CZ | 2,048 | 0 |
| AS52092 | ALFSERVIS-AS - Alf servis, s.r.o., CZ | 4,608 | 65,536 |
| AS52115 | JARONET-AS - JaroNet - services s.r.o., CZ | 4,096 | 68,719,476,736 |
| AS52130 | ARTCOMPANYCZ - LiveSport s.r.o., CZ | 2,048 | 4,294,967,296 |
| AS52154 | ASMJANIK - mjanik.net s.r.o., CZ | 2,048 | 0 |
| AS52176 | TTC-CZ - TTC TELEKOMUNIKACE s.r.o., CZ | 1,536 | 4,294,967,296 |
| AS54444 | AS54444 - AS54444 s.r.o., CZ | 256 | 65,536 |
| AS56344 | ASVIRIDIUM - Viridium.cz s.r.o., CZ | 1,024 | 65,536 |
| AS56353 | FIRSTLINE-AS - First Line Software s.r.o., CZ | 1,024 | 0 |
| AS56360 | MSTR-AS - TRINITY CZECH REPUBLIC, s.r.o., CZ | 4,096 | 34,359,738,368 |
| AS56427 | ASHRADIL - Michal Hradil, CZ | 2,048 | 0 |
| AS56450 | ALBERON_AS - Alberon Letohrad s.r.o, CZ | 4,096 | 34,359,738,368 |
| AS56456 | C2NET - C2NET s.r.o., CZ | 4,096 | 34,359,738,368 |
| AS56566 | SATT-AS - SATT a.s., CZ | 8,192 | 4,294,967,296 |
| AS56624 | ASRTYNENET - Rtyne.net s.r.o., CZ | 3,072 | 0 |
| AS56717 | RESAL-AS - OG Soft s.r.o., CZ | 256 | 65,536 |
| AS56821 | knvnet1-as - KnVnet services s.r.o., CZ | 2,048 | 8,589,934,592 |
| AS56827 | ASMIRNETCZ - mirnet s.r.o., CZ | 1,024 | 0 |
| AS56891 | ASCZRB - Narodni rozvojova banka, a.s., CZ | 256 | 0 |
| AS56973 | VITSOL - VITKOVICE IT SOLUTIONS a.s., CZ | 3,072 | 0 |
| AS57007 | ASNITEX - NITEX ISP s.r.o., CZ | 1,024 | 65,536 |
| AS57077 | AB-NET - AB-NET s.r.o., CZ | 3,072 | 4,294,967,296 |
| AS57081 | SCARFBOT - Scarfbot Technologies, s.r.o., CZ | 1,024 | 34,359,738,368 |
| AS57188 | RNET-AS - ORKA systems, s.r.o., CZ | 4,096 | 4,294,967,296 |
| AS57279 | SAURONNET - Sauron CZ s.r.o., CZ | 4,096 | 4,294,967,296 |
| AS57287 | OTAVANET-AS - OtavaNet s.r.o., CZ | 4,096 | 65,536 |
| AS57288 | ASSTAMPI - StaMPi, spol. s r.o., CZ | 2,048 | 65,536 |
| AS57294 | Internet_Expert_CZ - Internet Expert s.r.o., CZ | 4,096 | 65,536 |
| AS57472 | JRNET - JR-NET, s.r.o., CZ | 768 | 4,294,967,296 |
| AS57496 | PRAHA1NET-AS - Praha1.net z.s.p.o., CZ | 4,096 | 4,295,032,832 |
| AS57560 | ASXLNET - XLNET s.r.o., CZ | 1,024 | 65,536 |
| AS57707 | GREENDATA - Greendata s.r.o., CZ | 3,584 | 65,536 |
| AS57728 | TELIN-AS - Telco Infrastructure, s.r.o., CZ | 15,360 | 12,884,901,888 |
| AS57823 | ASKKNET - Libor Kotoucek, CZ | 2,048 | 65,536 |
| AS57825 | MoravanyNET-AS - MoravanyNET s.r.o., CZ | 1,280 | 4,294,967,296 |
| AS57904 | ASVEVYNET - Vevynet s.r.o., CZ | 1,024 | 0 |
| AS58220 | PEGASNET - Tomas Budai, CZ | 1,024 | 4,294,967,296 |
| AS58239 | ASHANSPAULCITY - hanspaul-city.net s.r.o., CZ | 1,536 | 17,179,869,184 |
| AS59479 | ASGEMNET - GEMNET s.r.o., CZ | 6,144 | 65,536 |
| AS59664 | ASOPTON - Opton s.r.o., CZ | 1,024 | 0 |
| AS59747 | NIX-DR - NIX.CZ z.s.p.o., CZ | 0 | 65,536 |
| AS59871 | HEUREKA_GROUP - Heureka Group a.s., CZ | 1,024 | 327,680 |
| AS59925 | GIGASERVER - Seonet Multimedia s.r.o., CZ | 1,024 | 4,294,967,296 |
| AS59959 | SFERIA - SferiaNET.cz s.r.o., CZ | 4,096 | 34,359,738,368 |
| AS59970 | AMIGONET - AmigoNet s.r.o., CZ | 3,072 | 68,719,476,736 |
| AS59984 | KLFREE-NETWORKS - KLFREE NETWORKS, s.r.o., CZ | 2,048 | 4,294,967,296 |
| AS60086 | VALVERA - Valvera s.r.o., CZ | 1,024 | 4,294,967,296 |
| AS60218 | ASIT8 - IT8 - Informacni technologie s.r.o., CZ | 256 | 65,536 |
| AS60266 | EMBEDIT-AS - EmbedIT s.r.o., CZ | 512 | 4,294,967,296 |
| AS60275 | AS_RVTECH - RVTech s.r.o., CZ | 0 | 65,536 |
| AS60529 | PRASLAVICENET - Miroslav Klement, CZ | 2,048 | 0 |
| AS60584 | PRIME-AS - Prime Studio s.r.o., CZ | 256 | 34,359,738,368 |
| AS60592 | GRANSY - Gransy s.r.o., CZ | 5,120 | 12,884,901,888 |
| AS60606 | Blindspot - PRO-ZETA a.s., CZ | 1,792 | 4,295,032,832 |
| AS60724 | SICUROCZ - Sicuro Services s. r. o., CZ | 256 | 0 |
| AS60727 | K2-cloud - K2 atmitec s.r.o., CZ | 1,024 | 0 |
| AS61110 | SITMP - Sprava informacnich technologii mesta Plzne, p.o., CZ | 1,024 | 34,359,738,368 |
| AS61296 | TechCom-AS - TechCom s.r.o., CZ | 17,408 | 4,294,967,296 |
| AS61425 | MLADAFRONTA - AdminIT, s. r. o., CZ | 1,024 | 0 |
| AS61981 | MACH3NET - KLFREE NETWORKS, s.r.o., CZ | 0 | 4,294,967,296 |
| AS62011 | ASUNHFREE - UNHfree.net z.s., CZ | 2,048 | 0 |
| AS62083 | FIO-BANKA-AS - Fio banka, a.s., CZ | 512 | 65,536 |
| AS62099 | JMNET - JM-Net, z.s., CZ | 4,096 | 34,359,738,368 |
| AS62102 | ISE-AS - Prazska plynarenska, a.s., CZ | 1,024 | 4,294,967,296 |
| AS62159 | ASHAPPY - Happy Technik s.r.o., CZ | 1,024 | 0 |
| AS62178 | Master_IT_Technologies - MASTER IT Technologies, a.s., CZ | 3,072 | 1,073,741,824 |
| AS62298 | CSC - Computer Systems Consulting s.r.o., CZ | 256 | 34,359,738,368 |
| AS62405 | Brouzdal - Brouzdal, s.r.o., CZ | 1,024 | 4,294,967,296 |
| AS63113 | GLOBECORP-NETWORKS - Globecorp Networks, CZ | 2,048 | 0 |
| AS196653 | ASBESTNETCZ - BEST-NET s.r.o., CZ | 1,536 | 65,536 |
| AS196684 | VITALATIV-CZ-AS - VITALATIV, s.r.o., CZ | 2,048 | 0 |
| AS196735 | AS-JONCZ - JON.CZ s.r.o., CZ | 17,408 | 4,294,967,296 |
| AS196762 | ASALKOM - ALKOM Security, a.s., CZ | 256 | 0 |
| AS196815 | LANSERVIS-AS - LAN servis s.r.o., CZ | 2,048 | 0 |
| AS196822 | SELECTSYSTEM-AS - SELECT SYSTEM, s.r.o., CZ | 16,384 | 4,294,967,296 |
| AS196843 | KHNET - KHnet.info, z.s., CZ | 5,120 | 4,294,967,296 |
| AS196849 | ASBARTYSOVA - MO BYRTUS s.r.o., CZ | 256 | 0 |
| AS196861 | DIGIACT-AS - DIGITAL ACTION s.r.o., CZ | 3,072 | 4,294,967,296 |
| AS196873 | NETLANCERS-AS - Netlancers s.r.o., CZ | 2,048 | 0 |
| AS196916 | BUSINESSCOM-AS - BusinessCom CZ spol. s r.o., CZ | 1,024 | 0 |
| AS196943 | ASVISSADO - Vissado s.r.o., CZ | 256 | 65,536 |
| AS196952 | ASBEZVANET - BEZVANET s.r.o., CZ | 1,024 | 4,295,032,832 |
| AS197013 | SPRINTEL-SRO - Sprintel s.r.o., CZ | 12,288 | 4,294,967,296 |
| AS197019 | WEDOS - WEDOS Internet, a.s., CZ | 10,240 | 4,294,967,296 |
| AS197029 | LAM-AS - LAM plus s.r.o., CZ | 4,096 | 8,589,934,592 |
| AS197046 | AS_FIXNET - FIXnet s.r.o., CZ | 3,072 | 4,294,967,296 |
| AS197083 | K2ATMITEC - K2 atmitec s.r.o., CZ | 2,048 | 0 |
| AS197197 | M-NET - Nova Optika s. r. o., CZ | 16,384 | 4,294,967,296 |
| AS197206 | EU1-BUSINESSCOM - BusinessCom CZ spol. s r.o., CZ | 2,560 | 4,294,967,296 |
| AS197277 | SUKL_AS - State Institute for Drug Control, CZ | 2,048 | 4,294,967,296 |
| AS197296 | UNITED_NETWORKS_SE - United Networks SE, CZ | 6,656 | 34,359,738,368 |
| AS197307 | bnet-internet_cz - Core4Net, s.r.o., CZ | 5,376 | 4,294,967,296 |
| AS197353 | INGMS_CZ - NN Management Services, s.r.o., CZ | 512 | 0 |
| AS197393 | ASRUDOLFNET - ISP Alliance a.s., CZ | 2,048 | 34,359,738,368 |
| AS197412 | ASBESKYDNET - Jiri Tlapak, CZ | 1,024 | 0 |
| AS197444 | COMFEEL - COMFEEL s.r.o., CZ | 1,280 | 34,359,803,904 |
| AS197451 | VUTBR-AS - Brno University of Technology, CZ | 67,072 | 55,834,836,992 |
| AS197542 | COMUNITED - Jan Saulich, CZ | 2,048 | 0 |
| AS197550 | ASINET4YOU - Internet4you.cz, spol. s r.o., CZ | 4,096 | 0 |
| AS197565 | ASDIGISERVICE - NHK Solutions s.r.o., CZ | 2,048 | 0 |
| AS197566 | ASOKNET - Livady s.r.o., CZ | 256 | 0 |
| AS197694 | MEPNET-AS - Municipal Office of the City Prague, CZ | 1,536 | 0 |
| AS197698 | DHT_Systems - D-H-T SYSTEMS s.r.o., CZ | 512 | 0 |
| AS197798 | NET-CONNECT - Net-Connect s.r.o., CZ | 9,216 | 34,359,738,368 |
| AS197846 | SAOCOMP-AS - Radovan Ochvat trading as SAO Computers, CZ | 4,096 | 0 |
| AS197875 | UNIPETROLRPA - ORLEN Unipetrol RPA s.r.o., CZ | 256 | 0 |
| AS197879 | HELAPC - HelaPC s.r.o., CZ | 3,328 | 68,719,476,736 |
| AS197895 | ONYX-AS - ONYX engineering, spol. s r.o., CZ | 1,024 | 4,294,967,296 |
| AS197920 | SKODA-ICT - SKODA ICT s.r.o., CZ | 1,280 | 0 |
| AS197963 | NET-JVIT - Jiri Vitak, CZ | 0 | 4,521,984 |
| AS198002 | CEZNET-AS - CEZNET s.r.o., CZ | 8,192 | 4,294,967,296 |
| AS198031 | TRUSTICA-AS - Trustica s.r.o., CZ | 1,024 | 4,294,967,296 |
| AS198101 | KOOPERATIVA-AS - Kooperativa pojistovna, a.s., Vienna Insurance Group, CZ | 2,048 | 68,719,476,736 |
| AS198103 | CCS-CZ - CCS Ceska spolecnost pro platebni karty s.r.o., CZ | 512 | 0 |
| AS198121 | DNS4EU - Whalebone, s.r.o., CZ | 256 | 65,536 |
| AS198143 | CESKAPOSTA-AS - Ceska Posta s.p., CZ | 512 | 65,536 |
| AS198161 | CZ-SUAS - Sokolovska uhelna, pravni nastupce, a.s., CZ | 3,072 | 4,294,967,296 |
| AS198167 | AppToCloud - Apptc.me s.r.o., CZ | 3,072 | 4,294,967,296 |
| AS198171 | WebglobeRS - Webglobe, s.r.o., CZ | 1,024 | 4,294,967,296 |
| AS198248 | ASCSERVIS - Richard Filip, CZ | 2,048 | 0 |
| AS19 |