1.1.1.1 (CloudFlare DNS)
4.2.2.4 (Level-3 DNS)
8.8.8.8 (Google DNS)
10.11.72.10 (Kancelar HDinternet)
10.12.45.20 (10.12.45.20)
31.133.8.20 (Rtyne.NET)
46.234.105.162 (google.peering.cz)
77.75.79.39 (Seznam.cz)
93.93.32.2 (Mitranet.CZ)
172.18.14.1 (MT-Horizont)
188.120.192.25 (HP Switch CeColo)
195.47.235.3 (www.nix.cz)
195.113.144.201 (CESNET (NTP))