Europe
Czechia
8,706,007 IPv4 addresses are geolocated in Czechia, and its registry assigned 715 autonomous systems there. 801 ASes announce the space geolocated in it.
8,706,007
IPv4 addresses
715
ASNs registered
2,477,312
Hosting IP addresses
91,050
VPN IP addresses
100,005
Residential Proxy IP addresses
1,850,361
Carrier IP addresses
ASNs in Czechia
The autonomous systems its registry assigned to it, by the IPv4 each announces anywhere.
| ASN | NAME | TYPE | IPV4 | PREFIXES V4 | PREFIXES V6 |
|---|---|---|---|---|---|
| AS5610 | O2 Czech Republic, a.s. | isp | 1,540,608 | 67 | 5 |
| AS16019 | Vodafone Czech Republic a.s. | isp | 1,210,368 | 90 | 17 |
| AS13036 | T-Mobile Czech Republic a.s. | isp | 992,256 | 34 | 3 |
| AS2852 | CESNET z.s.p.o. | education | 849,920 | 26 | 1 |
| AS29208 | Quantcom a.s. | isp | 265,984 | 36 | 5 |
| AS30764 | PODA a.s. | isp | 218,112 | 16 | 2 |
| AS42908 | O2 Czech Republic, a.s. | isp | 183,296 | 35 | 9 |
| AS2571 | DHL Information Services (Europe) s.r.o | business | 152,832 | 55 | 46 |
| AS28725 | CETIN a.s. | isp | 134,400 | 9 | 2 |
| AS16246 | O2 Czech Republic, a.s. | isp | 133,120 | 13 | 2 |
| AS25512 | CD-Telematika a.s. | isp | 117,760 | 11 | 1 |
| AS15425 | PODA a.s. | business | 110,592 | 8 | 1 |
| AS44546 | ALFA TELECOM s.r.o. | isp | 110,592 | 14 | 0 |
| AS25248 | RADIOKOMUNIKACE a.s. | isp | 106,752 | 5 | 2 |
| AS197451 | Brno University of Technology | education | 66,816 | 8 | 4 |
| AS31246 | O2 Czech Republic, a.s. | isp | 66,560 | 5 | 2 |
| AS44489 | STARNET, s.r.o. | isp | 64,768 | 26 | 7 |
| AS24971 | MasterDC s.r.o. | hosting | 58,112 | 33 | 13 |
| AS15935 | ha-vel internet s.r.o. | isp | 50,432 | 13 | 3 |
| AS12570 | O2 Czech Republic, a.s. | isp | 49,664 | 11 | 2 |
| AS24806 | INTERNET CZ, a.s. | business | 45,824 | 11 | 1 |
| AS6740 | CEZNET s.r.o. | isp | 41,984 | 4 | 0 |
| AS21430 | WIA spol. s.r.o. | isp | 41,216 | 65 | 5 |
| AS25424 | CEZNET s.r.o. | isp | 33,792 | 7 | 2 |
| AS39906 | CoProSys a.s. | business | 33,792 | 11 | 2 |
| AS41046 | O2 Czech Republic, a.s. | isp | 32,768 | 8 | 2 |
| AS39392 | SH.cz s.r.o. | hosting | 31,744 | 12 | 5 |
| AS15685 | CASABLANCA INT a.s. | hosting | 31,232 | 59 | 1 |
| AS9080 | Ipex A.S | isp | 26,624 | 5 | 1 |
| AS42306 | Edera Group a.s. | isp | 20,480 | 8 | 4 |
| AS15614 | Dragon Internet a.s. | isp | 19,968 | 6 | 1 |
| AS29134 | Webglobe, s.r.o. | hosting | 19,200 | 11 | 5 |
| AS39791 | Telco Pro Services, a. s. | isp | 18,688 | 3 | 2 |
| AS49985 | IP4ISP z.s.p.o | isp | 17,920 | 6 | 1 |
| AS8251 | FreeTel, s.r.o. | business | 17,408 | 6 | 1 |
| AS61296 | TechCom s.r.o. | isp | 17,408 | 2 | 1 |
| AS43541 | VSHosting s.r.o. | hosting | 17,152 | 18 | 7 |
| AS24641 | FASTER CZ spol. s r.o. | hosting | 16,896 | 10 | 2 |
| AS20723 | AVONET, s.r.o. | isp | 16,384 | 7 | 1 |
| AS196735 | PODA a.s. | business | 16,384 | 2 | 1 |
| AS196822 | SELECT SYSTEM, s.r.o. | business | 16,384 | 1 | 1 |
| AS197197 | CETIN a.s. | isp | 16,384 | 1 | 1 |
| AS29321 | O2 Czech Republic, a.s. | isp | 15,360 | 5 | 1 |
| AS57728 | CEZNET s.r.o. | business | 15,360 | 5 | 3 |
| AS204666 | Jiri Tlapak | isp | 14,336 | 38 | 11 |
| AS207187 | TKR Jasek, s.r.o. | isp | 14,336 | 6 | 3 |
| AS210712 | ISP Alliance a.s. | isp | 14,336 | 7 | 1 |
| AS35592 | Coolhousing s.r.o. | hosting | 13,568 | 31 | 4 |
| AS51248 | Host-Telecom.com s.r.o. | hosting | 13,568 | 19 | 5 |
| AS34040 | TTNET s.r.o. | business | 13,312 | 4 | 1 |
| AS49101 | CEZNET s.r.o. | business | 13,312 | 2 | 2 |
| AS207700 | Reliable Communications s.r.o. | business | 13,056 | 26 | 0 |
| AS28972 | M-SOFT, spol. s r.o. | isp | 12,800 | 6 | 2 |
| AS48926 | Pe3ny Net s.r.o. | business | 12,288 | 6 | 1 |
| AS197013 | Sprintel s.r.o. | isp | 12,288 | 5 | 1 |
| AS56566 | SATT a.s. | business | 12,032 | 9 | 1 |
| AS34080 | MIRAMO spol. s.r.o. | isp | 11,264 | 4 | 1 |
| AS50698 | TETA s.r.o. | isp | 11,264 | 9 | 3 |
| AS204383 | SPCom s.r.o. | business | 11,264 | 19 | 1 |
| AS35236 | UVT Internet s.r.o. | isp | 10,496 | 12 | 8 |
| AS39761 | ABAK, Co.Ltd. | business | 10,240 | 6 | 2 |
| AS47232 | ISP Alliance a.s. | isp | 9,984 | 10 | 6 |
| AS197019 | WEDOS Internet, a.s. | hosting | 9,984 | 4 | 2 |
| AS35613 | FASTER CZ spol. s r.o. | business | 9,216 | 5 | 2 |
| AS41088 | "N_SYS s.r.o." | isp | 9,216 | 2 | 2 |
| AS48574 | T-Mobile Czech Republic a.s. | isp | 9,216 | 3 | 0 |
| AS197798 | Net-Connect s.r.o. | business | 9,216 | 2 | 1 |
| AS43070 | JAW.cz s.r.o. | isp | 8,704 | 6 | 3 |
| AS50833 | FIBER TELECOM s.r.o. | hosting | 8,704 | 5 | 4 |
| AS51420 | cyrilek.net z.s. | business | 8,704 | 18 | 0 |
| AS201476 | ISP Alliance a.s. | business | 8,704 | 13 | 2 |
| AS8913 | Mopos Communications A.S. | isp | 8,192 | 1 | 1 |
| AS33943 | Quadruple a.s. | business | 8,192 | 1 | 1 |
| AS43507 | RETE internet, s.r.o. | isp | 8,192 | 2 | 0 |
| AS43709 | SilesNet s.r.o. | isp | 8,192 | 7 | 7 |
| AS47493 | CEZNET s.r.o. | isp | 8,192 | 1 | 1 |
| AS57069 | Dempsey and Clark s.r.o. | business | 8,192 | 1 | 0 |
| AS198002 | CEZNET s.r.o. | business | 8,192 | 1 | 1 |
| AS202237 | Wic-Net, s.r.o. | business | 8,192 | 1 | 1 |
| AS43542 | OptoNet Communication, spol. s.r.o. | business | 7,936 | 1 | 1 |
| AS50825 | UVT Internet s.r.o. | isp | 7,424 | 6 | 1 |
| AS25234 | ACTIVE 24, s.r.o. | hosting | 7,168 | 5 | 3 |
| AS28905 | OMEGA plus Chrudim s.r.o. | business | 7,168 | 3 | 0 |
| AS33883 | TRIOPTIMUM s.r.o. | business | 7,168 | 3 | 1 |
| AS35046 | OMEGA plus Chrudim s.r.o. | isp | 7,168 | 3 | 2 |
| AS42189 | Druzstvo EUROSIGNAL | business | 7,168 | 4 | 1 |
| AS47114 | SychrovNET s.r.o | isp | 6,656 | 5 | 2 |
| AS197296 | United Networks SE | business | 6,656 | 4 | 1 |
| AS42000 | Futruy s.r.o. | isp | 6,400 | 5 | 1 |
| AS49121 | Infinity Telecom, s.r.o. | isp | 6,400 | 20 | 8 |
| AS59479 | GEMNET s.r.o. | business | 6,400 | 3 | 1 |
| AS29583 | Spinoco a.s. | isp | 6,144 | 9 | 0 |
| AS34222 | ZONER a.s. | business | 6,144 | 2 | 1 |
| AS44065 | NETAIR, s.r.o. | isp | 6,144 | 2 | 1 |
| AS60592 | Gransy s.r.o. | hosting | 6,144 | 18 | 3 |
| AS207198 | Kabelova televize Koprivnice, s.r.o. | business | 6,144 | 3 | 1 |
| AS43413 | NEW TELEKOM, spol. s r.o. | isp | 5,888 | 2 | 1 |
| AS198605 | AVAST Software s.r.o. | hosting | 5,632 | 21 | 8 |
| AS198813 | SychrovNET s.r.o | isp | 5,632 | 3 | 1 |
| AS25192 | CZ.NIC, z.s.p.o. | isp | 5,376 | 5 | 5 |
Largest cities
IPv4 addresses IP Geolocation places in each city, as a share of all those it places in Czechia.
- Prague4,128,919 · 47.43%
- Ostrava, Moravian-Silesian Region412,295 · 4.74%
- Brno, South Moravian333,060 · 3.83%
- České Budějovice, South Bohemian Region146,752 · 1.69%
- Jinonice, Prague107,985 · 1.24%
- Pilsen, Plzeň Region79,136 · 0.91%
- Olomouc, Olomouc Region77,354 · 0.89%
- Liberec, Liberec Region69,434 · 0.80%
- Zlín64,136 · 0.74%
- Chrudim, Pardubice Region52,288 · 0.60%
- Jihlava, Vysocina31,254 · 0.36%
- Ktiš, South Bohemian Region30,720 · 0.35%
What the databases see
Addresses each address-keyed database holds in Czechia, as a share of its geolocated IPv4, with the largest providers. A /24 counts for the country most of it is in; counts overlap.
- VPN IP91,050nordvpn, cisco_secure_web_gateway, goodaccess1.05%
- Residential Proxy IP100,005anyip, geonode, geonix1.15%
- Datacenter Proxy IP1,793floppydata, dataimpulse, we1town0.02%
- Mobile Proxy IP5,802floppydata, dataimpulse, vibeproxies0.07%
- Tor IP1440.00%
- Relay IP2,298cisco_secure_web_gateway, apple_private_relay0.03%
- Hosting IP2,477,312datacamp, vshosting, hosttelecom28.46%
- CDN IP5,635akamai, cloudflare, gcore0.06%
- Carrier IP1,850,361Vodafone, T-Mobile, Nordic Telecom21.25%
- Anycast IP8,7040.10%
- SSH IP122,6131.41%
- SMTP IP35,7690.41%
- DNS Resolver IP14,7620.17%
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