Robtex

Up: 121.58.242.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 121.58.242.0/25
Down right: 121.58.242.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
121.58.242.29	PTR	29.242.58.121.-rev.convergeict.com
121.58.242.29	A	kairoscenter.com
121.58.242.29	A	philretorno.org
121.58.242.100	A	rdmsinc.org
121.58.242.115	PTR	mail.arialto.com.ph
121.58.242.115	A	arialto.com.ph
121.58.242.116	A+PTR	mail.allcard.com.ph
121.58.242.116	A	mail.avls.com.ph
121.58.242.116	A	mail.thehive.com.ph
121.58.242.165	A+PTR	mail1.rcs.com.ph
121.58.242.165	A+PTR	mail3.rcs.com.ph
121.58.242.166	A+PTR	mail2.rcs.com.ph
121.58.242.188	A+PTR	mail.punolaw.com
121.58.242.188	A	smtp1.punolaw.com
121.58.242.189	A+PTR	mail.punolaw.com
121.58.242.189	A	smtp2.punolaw.com
121.58.242.203	A	mail.hotelsogo.com
121.58.242.203	A	mx02.hotelsogo.com
121.58.242.203	A	sogo-htcas01.hotelsogo.com