Robtex

Up: 180.131.16.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 180.131.16.0/25
Down right: 180.131.16.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
180.131.16.76	A+PTR	mail2.medicast.net
180.131.16.76	A	ns2.medicast.net
180.131.16.78	A+PTR	mail.medicast.net
180.131.16.78	A	khradiology.org
180.131.16.78	A	www.karl.or.kr
180.131.16.82	A	iterms.co.kr
180.131.16.186	A	e-learning.unapcict.org