Robtex

Up: 61.8.216.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 61.8.220.0/23
Down right: 61.8.222.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
61.8.220.131	A+PTR	ns1.unitedpremas.com
61.8.220.131	A+PTR	ns1.ugl-premas.com
61.8.220.131	A+PTR	ns1.sg.apac.dtz.com
61.8.220.136	A	mail1.unitedpremas.com
61.8.220.139	PTR	61.8.220-139.unknown.starhub.net.sg
61.8.220.139	A	www.unitedpremas.com
61.8.220.139	A	e-premisys.com.au
61.8.220.146	A	postman1.ugl-premas.com
61.8.220.146	A	postman1.unitedpremas.com
61.8.220.146	A	webmail.ugl-premas.com
61.8.221.15	PTR	mail.brileygroup.com
61.8.221.71	A	mail.hramerica.net
61.8.221.137	A+PTR	fm.perennialrealestate.com.sg
61.8.222.65	A+PTR	mail1.lc.uobkayhian.com
61.8.222.65	A	mail1.uobkayhian.com
61.8.222.66	PTR	mail1bk.lc.uobkayhian.com
61.8.222.66	A	mail1bk.uobkayhian.com
61.8.222.67	PTR	mail.uobkayhian.com
61.8.222.68	PTR	mailbk.uobkayhian.com
61.8.222.75	PTR	mail1.utrade.com.sg
61.8.222.78	PTR	mail1bk2.utrade.com.sg
61.8.222.78	A	mail1bk.lc.utrade.com.sg
61.8.222.78	A	mail1bk2.lc.utrade.com.sg
61.8.222.79	A	research.uobkayhian.com
61.8.222.82	PTR	mail1bk2.lc.uobkayhian.com
61.8.222.82	A	mail1bk2.uobkayhian.com
61.8.222.150	A	jermyncapital.com.sg
61.8.223.76	A	sts.ocbc.com
61.8.223.81	A	ews.ocbc.com
61.8.223.84	A	sip.ocbc.com
61.8.223.88	A	miapp2.ocbc.com
61.8.223.149	A	mail.treetops.com.sg
61.8.223.155	PTR	mail.treetops.com.sg
61.8.223.169	A	mail.adventusholdings.com
61.8.223.169	A	mail.bayhotelsingapore.com
61.8.223.169	A	imail.bayhotelsingapore.com
61.8.223.184	A	sngsmtp.marketing-asiapac.com
61.8.223.196	A	gitserver.gitpl.com.sg