Robtex

Up: 49.128.32.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 49.128.48.0/21
Down right: 49.128.56.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
49.128.48.214	PTR	214.48.128.49.static.m1net.com.sg
49.128.48.214	A	*.panimex.com
49.128.48.214	A	mail.panimex.com
49.128.49.5	A	uniquestz.net
49.128.49.12	A	hfex1.scanteak.com.sg
49.128.49.12	A	mail.scanteak.com.sg
49.128.49.195	A	webmail2.guthrie-gts.com
49.128.49.226	PTR	226.49.128.49.static.m1net.com.sg
49.128.49.227	A+PTR	mail.lexcompass.com.sg
49.128.49.227	A	mail.netabyte.com
49.128.49.227	A	mail.sapientiaholdings.com
49.128.49.243	A+PTR	owa.prescient.com.sg
49.128.50.14	PTR	14.50.128.49.static.m1net.com.sg
49.128.51.23	PTR	23.51.128.49.static.m1net.com.sg
49.128.53.2	PTR	2.53.128.49.static.m1net.com.sg
49.128.53.2	A	www.synergraphic.com.sg
49.128.53.2	A	synergraphic.com.sg
49.128.53.3	A	mail.synergraphic.com.sg
49.128.53.178	PTR	178.53.128.49.static.m1net.com.sg
49.128.53.178	A	mail.chiatai.com.sg
49.128.53.178	A	chiatai.com.sg
49.128.53.180	PTR	sgpexc02.cpbev.sg
49.128.53.180	A	chiatai.com.sg
49.128.53.180	A	cpbevexc01.cpbev.sg
49.128.53.239	A	www.spring.sg
49.128.53.254	PTR	254.53.128.49.static.m1net.com.sg
49.128.53.254	A	gtm1.spring.gov.sg
49.128.54.19	PTR	19.54.128.49.static.m1net.com.sg
49.128.54.19	A	mail.soln-app.com
49.128.54.19	A	mail.lifeskills.sg
49.128.54.23	PTR	23.54.128.49.static.m1net.com.sg
49.128.54.25	PTR	25.54.128.49.static.m1net.com.sg
49.128.54.132	PTR	132.54.128.49.static.m1net.com.sg
49.128.54.150	A	webmail.yorkhotel.com.sg
49.128.55.64	PTR	64.55.128.49.static.m1net.com.sg
49.128.55.64	A	mail.pastamaniadelivery.sg
49.128.55.64	A	pastamaniadelivery.com.sg
49.128.55.65	PTR	65.55.128.49.static.m1net.com.sg
49.128.55.68	A	mail.globamatrix.com
49.128.55.70	A	mail.pastamatrix.com
49.128.55.81	A+PTR	mail.prisco.com.sg
49.128.55.83	A+PTR	ftp.prisco.com.sg
49.128.55.131	PTR	131.55.128.49.static.m1net.com.sg
49.128.55.169	A	learnnow.sg
49.128.55.182	A	app.wda.gov.sg
49.128.55.182	A	www.adulteducation.sg
49.128.55.182	A	learningspace.sg
49.128.56.82	PTR	dcnmail01.denron.com.sg
49.128.56.83	PTR	dcnmail02.denron.com.sg
49.128.56.163	PTR	163.56.128.49.static.m1net.com.sg
49.128.56.180	A	revolutioncosmeticsusa.com
49.128.56.228	A	primeland.espore.com
49.128.56.229	A	mx2.espore.com
49.128.56.233	A	dover.espore.com
49.128.56.233	A	mail.spectrum-energy.net
49.128.56.249	A	espore.com
49.128.56.249	A	www.espore.com
49.128.56.249	A	www.kps.sg
49.128.56.253	A	cebu.espore.com
49.128.57.150	A	mail.insworldsch.com
49.128.57.151	PTR	151.57.128.49.static.m1net.com.sg
49.128.57.151	A	insworldsch.com
49.128.57.151	A	insworld.com.sg
49.128.57.152	A	ns1.insworldsch.com
49.128.57.169	PTR	169.57.128.49.static.m1net.com.sg
49.128.57.169	A	dmsdatasecure.com
49.128.58.66	PTR	66.58.128.49.static.m1net.com.sg
49.128.58.66	A	portal.ransnet.com
49.128.58.73	PTR	73.58.128.49.static.m1net.com.sg
49.128.58.102	A	www.sam.sg
49.128.58.107	PTR	107.58.128.49.static.m1net.com.sg
49.128.58.107	A	www.sam-malaysia.com
49.128.58.178	PTR	178.58.128.49.static.m1net.com.sg
49.128.58.178	A	mx.seikoarchitecturalwall.com.sg
49.128.58.178	A	mail.seikowall.com
49.128.58.215	PTR	215.58.128.49.static.m1net.com.sg
49.128.58.215	A	dasmaptrack.com
49.128.58.245	PTR	245.58.128.49.static.m1net.com.sg
49.128.60.3	A	www.netreachasia.com
49.128.60.48	PTR	48.60.128.49.static.m1net.com.sg
49.128.60.50	A	advanet.com.sg
49.128.60.72	PTR	72.60.128.49.static.m1net.com.sg
49.128.60.72	A	www.mbassy.sg
49.128.60.72	A	mbassy.sg
49.128.60.81	PTR	81.60.128.49.static.m1net.com.sg
49.128.60.91	PTR	91.60.128.49.static.m1net.com.sg
49.128.60.99	A	aspen.com.sg
49.128.60.104	A	office.uf-tech.com
49.128.60.134	PTR	134.60.128.49.static.m1net.com.sg
49.128.60.152	PTR	152.60.128.49.static.m1net.com.sg
49.128.60.207	PTR	207.60.128.49.static.m1net.com.sg
49.128.60.210	PTR	210.60.128.49.static.m1net.com.sg
49.128.61.25	A	sana-aftercare.org
49.128.61.30	PTR	30.61.128.49.static.m1net.com.sg
49.128.61.72	A	office.uf-tech.com
49.128.61.72	A	ufoffice.dyndns-mail.com
49.128.61.117	PTR	117.61.128.49.static.m1net.com.sg
49.128.61.117	A	thomsonbabyview.com
49.128.61.122	PTR	122.61.128.49.static.m1net.com.sg
49.128.61.128	PTR	128.61.128.49.static.m1net.com.sg
49.128.61.147	A	thomsonbabyview.com
49.128.61.154	PTR	154.61.128.49.static.m1net.com.sg
49.128.61.185	PTR	185.61.128.49.static.m1net.com.sg
49.128.61.185	A	nutrifirst-sg.com
49.128.61.185	A	mail.nutrifirst-sg.com
49.128.61.186	PTR	186.61.128.49.static.m1net.com.sg
49.128.61.194	PTR	194.61.128.49.static.m1net.com.sg
49.128.61.194	A	xpoprint.dscloud.biz
49.128.61.204	PTR	204.61.128.49.static.m1net.com.sg
49.128.61.209	PTR	209.61.128.49.static.m1net.com.sg
49.128.61.209	A	yjwp.com.sg
49.128.61.218	PTR	218.61.128.49.static.m1net.com.sg
49.128.61.239	PTR	239.61.128.49.static.m1net.com.sg
49.128.61.243	PTR	243.61.128.49.static.m1net.com.sg
49.128.62.6	A	rp-ds.net
49.128.62.6	A	smforensics.com
49.128.62.6	A	sm-forensic.com
49.128.62.37	A	liverserv.com
49.128.62.37	A	mail.liverserv.com
49.128.62.38	A	icare.selfip.info
49.128.62.155	A	dns2.muvee.com
49.128.62.211	PTR	211.62.128.49.static.m1net.com.sg
49.128.62.241	PTR	241.62.128.49.static.m1net.com.sg
49.128.63.1	PTR	1.63.128.49.static.m1net.com.sg
49.128.63.58	A	mail.ufmdev.com
49.128.63.153	A	es1100.meeknlowly.com
49.128.63.177	PTR	177.63.128.49.static.m1net.com.sg
49.128.63.210	PTR	210.63.128.49.static.m1net.com.sg