Summary
g.dns.kr has one IP number , which also has a corresponding reverse pointer.
pe.kr,
ne.kr,
es.kr,
sc.kr,
re.kr and at least 100 other hosts use this as a nameserver.
dns.kr is a domain controlled by six nameservers at
dns.kr themselves. All of them are on different IP networks.
g.dns.kr is hosted on a server in Korea.