Robtex

Up: 122.99.240.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 122.99.240.0/22
Down right: 122.99.244.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
122.99.240.68	A+PTR	mail.esocom.com
122.99.240.68	A	ns1.esocom.com
122.99.240.68	A	ns.esocom.com
122.99.240.70	A	tech.esocom.com
122.99.240.73	PTR	intranet.esocom.com
122.99.240.73	A	mail.ssyapt.com
122.99.240.73	A	mail.dfmc.kr
122.99.240.178	A	gigaip.net
122.99.240.178	A	www.gigaip.net
122.99.243.3	A	finaldata.com
122.99.243.20	A	mail.finaldata.com
122.99.243.21	A	mail3.finaldata.com