Public DNS Server

Google DNS
8.8.8.8
8.8.4.4

OpenDNS
208.67.222.222
208.67.220.220

Level 3
4.2.2.2

True Intenet
203.144.207.29
203.144.207.49

Cat Telecom
61.19.245.245
61.19.245.246
202.129.27.133

KSC
203.155.33.1