Robtex

Up: 118.201.0.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 118.201.0.0/22
Down right: 118.201.4.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
118.201.1.128	A	onepass.singtel.com
118.201.2.40	A+PTR	antispam.infratechmm.com
118.201.2.40	A	antispam.baganmail.com
118.201.2.44	A	mail.baganmail.com
118.201.2.45	A	mail.baganmail.com
118.201.2.45	A	mail.infragroupasia.com
118.201.2.116	A	smtp.ebs-singtel.com
118.201.2.211	A	mx1.yamaltrade.sg
118.201.2.212	A	mx2.yamaltrade.sg
118.201.3.226	A	sg-mxserver.o2micro.com
118.201.4.107	A+PTR	email.nomanbhoy.com
118.201.4.107	A	mail.iandc.com.sg
118.201.4.107	A	smtp.iandc.com.sg
118.201.4.108	A	mm.iandc.com.sg
118.201.4.115	A+PTR	cliftonrealestategroup.com
118.201.4.115	A+PTR	mail2.cliftonrealestategroup.com
118.201.4.115	A	mail.cliftonrealestategroup.com
118.201.5.165	A	www.amt.com.sg
118.201.5.165	A	aser-corp.com
118.201.5.165	A	amt.com.sg
118.201.5.168	A+PTR	dns6.sigma3.net
118.201.5.168	A	dns4.sigma3.net
118.201.5.169	PTR	mail4.sigma3.com.sg
118.201.5.169	A	mail3.sigma3server.com
118.201.5.169	A	zc-mail-relay.sigma3.com.sg
118.201.5.199	A	www.ilink.biz
118.201.5.199	A	smtp2.ilink.biz
118.201.5.213	A	smtp2.pncacademy.com
118.201.5.214	A	*.nex-wave02.com
118.201.5.214	A	guilinview.com.sg
118.201.5.214	A	smtp2.ezlink.biz
118.201.5.217	A	smtp.sladeglobal.com
118.201.5.218	A+PTR	mail.nex-wave06.com
118.201.5.218	A	smtp.nevilleclarke.net
118.201.5.219	PTR	mail.nsrbcp.com
118.201.5.219	A	smtp-bcp.nsr.com.sg
118.201.5.221	PTR	mail.nex-wave07.com
118.201.5.221	PTR	mail.nex-wave10.com
118.201.5.233	A	mail.keruigroup.com.sg
118.201.5.252	A	mail.onesmart.com.sg
118.201.6.35	A	cei.com.sg
118.201.6.35	A	roadrunner.cei.com.sg
118.201.6.42	A	pigeon.cei.com.sg
118.201.6.44	A	pelican.cei.com.sg
118.201.6.45	A+PTR	penguin.cei.com.sg
118.201.6.185	A	mail5.btstankers.com
118.201.6.185	A	mail3.btstankers.com
118.201.6.185	A	mail4.btstankers.com
118.201.6.222	A+PTR	mail1.visionlawllc.com
118.201.6.228	A	mail.qinda.sg
118.201.6.228	A	mail.qinly.com
118.201.7.195	A	mail.hiwin.sg