🇨🇿 IP addresses in Czechia
Czechia has 605 networks announcing 8,272,640 IPv4 addresses. Largest ISPs and hosting providers, network types, time zones and languages used for IP checks.
Networks (ASNs)
605
IPv4 prefixes
1,772
IPv4 addresses
8,272,640
Largest network
O2-CZECH-REPUBLIC
AS5610
At a glance
- Time zones
- Europe/Prague
- Common languages
- cs
- Country
- 🇨🇿 Czechia CZ
Network types
- Unclassified network429 · 71%
- Residential153 · 25%
- Datacenter / hosting21 · 3%
- Mobile carrier2 · 0%
Largest networks
50
| ASN | Name | Network type | IPv4 prefixes | IPv4 addresses |
|---|---|---|---|---|
| AS5610 | O2-CZECH-REPUBLIC | Unclassified network | 46 | 1,540,608 |
| AS16019 | VODAFONE-CZ-AS | Mobile carrier | 46 | 1,210,368 |
| AS13036 | TMOBILE- | Mobile carrier | 33 | 992,256 |
| AS2852 | CESNET2 | Unclassified network | 20 | 849,920 |
| AS29208 | QUANTCOM-AS Quantcom a.s. | Unclassified network | 34 | 265,984 |
| AS30764 | PODA-AS | Unclassified network | 15 | 218,112 |
| AS42908 | ORIGINAL AS CZ-NORDICTELECOMREGIONAL | Residential | 35 | 183,296 |
| AS2571 | DHLNET | Residential | 20 | 152,832 |
| AS28725 | CETIN-AS | Unclassified network | 7 | 134,400 |
| AS16246 | AS16246 NEJ.cz s.r.o | Unclassified network | 13 | 133,120 |
| AS25512 | CDT-AS The Czech Republic | Unclassified network | 11 | 117,760 |
| AS15425 | COMA | Unclassified network | 8 | 110,592 |
| AS44546 | ALFATELECOM-AS | Residential | 79 | 110,592 |
| AS25248 | BLUETONE-AS The Czech Republic | Unclassified network | 5 | 106,752 |
| AS197451 | VUTBR-AS | Unclassified network | 4 | 66,816 |
| AS31246 | NETBOX-AS NETBOX Autonomous system | Unclassified network | 5 | 66,560 |
| AS44489 | STARNET | Residential | 22 | 64,768 |
| AS24971 | MASTER-AS Czech Republic www.master.cz | Unclassified network | 31 | 58,112 |
| AS15935 | HA-VEL-LOCAL-AS Czech republic | Unclassified network | 8 | 50,432 |
| AS12570 | ITSELF Network and internet service provider. | Residential | 19 | 49,664 |
| AS24806 | INTERNET-CZ Ktis 2, 384 03 Ktis | Residential | 10 | 45,824 |
| AS6740 | INEXT-CZ-ADA | Unclassified network | 4 | 41,984 |
| AS21430 | WIA-AS | Unclassified network | 50 | 41,216 |
| AS25424 | INEXT-CZ InterneXt 2000, s.r.o. | Unclassified network | 7 | 33,792 |
| AS39906 | COPROSYS | Unclassified network | 18 | 33,792 |
| AS41046 | NEJTV-AS | Unclassified network | 4 | 32,768 |
| AS39392 | SUPERNETWORK _ | Unclassified network | 10 | 31,744 |
| AS15685 | CASABLANCA-AS Internet & Collocation Provider | Residential | 39 | 31,232 |
| AS9080 | GIN Czech Republic, EU | Unclassified network | 4 | 26,624 |
| AS29134 | IGNUM-AS Czech Republic | Unclassified network | 15 | 21,248 |
| AS42306 | EDERA_GROUP | Unclassified network | 7 | 20,480 |
| AS15614 | DRAGON Dragon Internet a.s. | Residential | 6 | 19,968 |
| AS39791 | TPS-AS Telco Pro Services, a.s. | Residential | 3 | 18,688 |
| AS49985 | IP4ISP | Residential | 5 | 17,920 |
| AS8251 | NFX_ZSPO | Unclassified network | 5 | 17,408 |
| AS61296 | TECHCOM-AS TechCom s.r.o. | Unclassified network | 2 | 17,408 |
| AS43541 | VSHOSTING | Datacenter / hosting | 15 | 17,152 |
| AS24641 | FASTER-AS | Unclassified network | 11 | 16,896 |
| AS20723 | MGI CZ.MGI autonomous system, Czech Republic | Unclassified network | 7 | 16,384 |
| AS196735 | AS-JONCZ jakub@jon.cz | Unclassified network | 2 | 16,384 |
| AS196822 | SELECTSYSTEM-AS | Unclassified network | 1 | 16,384 |
| AS197197 | M-NET | Residential | 1 | 16,384 |
| AS29321 | CENTRONETAS Czech Republic | Unclassified network | 5 | 15,360 |
| AS57728 | TELIN-AS | Unclassified network | 4 | 15,360 |
| AS204666 | CZJIRITLAPAK | Unclassified network | 19 | 14,336 |
| AS207187 | TKRJASEK | Unclassified network | 4 | 14,336 |
| AS210712 | GRAPESC | Unclassified network | 7 | 14,336 |
| AS51248 | HOST-TELECOM | Datacenter / hosting | 18 | 13,824 |
| AS35592 | COOLHOUSING-AS Vinohradska 190 | Unclassified network | 5 | 13,568 |
| AS34040 | CZTTNET-AS | Residential | 3 | 13,312 |