Robtex

Up: 49.128.32.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 49.128.32.0/22
Down right: 49.128.36.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
49.128.32.2	PTR	2.32.128.49.static.m1net.com.sg
49.128.32.98	PTR	98.32.128.49.static.m1net.com.sg
49.128.33.58	PTR	58.33.128.49.static.m1net.com.sg
49.128.33.218	PTR	218.33.128.49.static.m1net.com.sg
49.128.33.250	A+PTR	proxy.prisco.com.sg
49.128.33.250	A	prisco.com.sg
49.128.34.27	PTR	27.34.128.49.static.m1net.com.sg
49.128.34.66	PTR	66.34.128.49.static.m1net.com.sg
49.128.34.102	PTR	102.34.128.49.static.m1net.com.sg
49.128.35.2	PTR	2.35.128.49.static.m1net.com.sg
49.128.36.56	PTR	56.36.128.49.static.m1net.com.sg
49.128.36.102	A	mail.starmaritime.com.sg
49.128.36.115	A	islcompany.com
49.128.36.182	A	silversea-tech.com
49.128.36.182	A	ns2.mycommz.com
49.128.36.182	A	ns4.mycommz.com
49.128.36.230	A	casa-service.com.sg
49.128.36.230	A	www.ef.com.sg
49.128.36.230	A	www.ferroli.sg
49.128.37.28	A	sfsdfadxx.sexidude.com
49.128.37.99	A+PTR	mail.seehupseng.com.sg
49.128.37.99	A	shsmail.seehupseng.com.sg
49.128.37.100	A	shshp.seehupseng.com.sg
49.128.37.146	PTR	mx.secom.com.sg
49.128.37.146	A	mx.secom-dps.com
49.128.37.150	A	mail.secom.com.sg
49.128.37.151	A+PTR	imsva.secom.com.sg
49.128.37.151	A	mx.secom-dps.com
49.128.37.151	A	mx.provisiontech.com.sg
49.128.37.225	PTR	225.37.128.49.static.m1net.com.sg
49.128.37.225	A	app2.mlaw.gov.sg
49.128.37.227	PTR	227.37.128.49.static.m1net.com.sg
49.128.37.227	A	app-stg2.mlaw.gov.sg
49.128.38.53	A+PTR	mail.trueharmony.com.my
49.128.38.57	PTR	57.38.128.49.static.m1net.com.sg
49.128.38.57	A	www.sapientiaholdings.com
49.128.38.57	A	sapientiaholdings.com
49.128.38.59	A	mail.revolving365.info
49.128.38.166	PTR	166.38.128.49.static.m1net.com.sg
49.128.38.166	A	mail.scoutads.com
49.128.38.166	A	*.scoutads.com
49.128.38.169	PTR	169.38.128.49.static.m1net.com.sg
49.128.38.169	A	emailserver.scoutads.com
49.128.39.1	PTR	1.39.128.49.static.m1net.com.sg
49.128.39.102	PTR	102.39.128.49.static.m1net.com.sg
49.128.39.113	A+PTR	mail.parpl.com
49.128.39.113	A	panasiaresources.com
49.128.39.113	A	parpl.com
49.128.39.115	A	pan-asia.in
49.128.39.117	PTR	mail.panasiagroup.net
49.128.39.119	A+PTR	panasiaresources.com
49.128.39.121	PTR	121.39.128.49.static.m1net.com.sg
49.128.39.121	A	realtimehrresourcing.com
49.128.39.121	A	mail.realtimehrresourcing.com
49.128.39.123	PTR	123.39.128.49.static.m1net.com.sg
49.128.39.123	A	mail.reliancehrconsulting.com
49.128.39.123	A	reliancehrconsulting.com
49.128.39.124	PTR	mail.servline-my.com
49.128.39.158	PTR	158.39.128.49.static.m1net.com.sg
49.128.39.158	A	server3.vespac.com.sg
49.128.39.163	A	pridns.goshadvertising.com
49.128.39.163	A	goshadvertising.com
49.128.39.242	A	mail.quantumlawcorp.com