AS12570 O2 Czech Republic, a.s.

A network in Czechia. Here are the size of its IP ranges and the data used for visitor checks.

Country

IPv4 addresses

49,664 addresses

IPv4 ranges

IPv6 ranges

Visitor check data

This network mainly serves home, office and mobile lines. VPN servers are counted only when they are on the public list. How checks work

Czechia48,896 addresses

Slovakia768 addresses

Up to 20, largest first.

88.83.224.0/19

109.105.32.0/19

212.96.160.0 ~ 212.96.179.255

212.4.144.0/20

213.211.48.0/20

89.190.40.0 ~ 89.190.51.255

80.78.151.0 ~ 80.78.159.255

212.4.133.0 ~ 212.4.141.255

89.190.56.0/21

80.78.144.0 ~ 80.78.149.255

212.96.186.0 ~ 212.96.191.255

213.211.38.0 ~ 213.211.43.255

185.8.188.0/22

193.17.248.0/22

212.4.128.0/22

213.211.32.0/22

212.96.181.0 ~ 212.96.183.255

195.78.122.0/23

89.190.54.0/24

Data: DB-IP (CC BY 4.0), public VPN server list, Tor Project exit list · as of 2026-10-12