Robtex

Up: 111.221.16.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 111.221.16.0/22
Down right: 111.221.20.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
111.221.16.67	PTR	po31-574.sin-6nf-2b.ntwk.msn.net
111.221.16.69	PTR	vlan574.sin-f6f-xit-1a.ntwk.msn.net
111.221.16.70	PTR	vlan574.sin-f6f-xit-1b.ntwk.msn.net
111.221.16.98	PTR	ten2-2-126.sin-6nf-2a.ntwk.msn.net
111.221.16.109	A+PTR	origin-sg.ds.microsoft.com
111.221.16.162	PTR	po31-132.sin-6nf-2a.ntwk.msn.net
111.221.16.163	PTR	po31-132.sin-6nf-2b.ntwk.msn.net
111.221.16.181	PTR	vlan356.sin-f8x-cis-4a.ntwk.msn.net
111.221.16.182	PTR	vlan356.sin-f8x-cis-4b.ntwk.msn.net
111.221.16.198	PTR	vlan577.sin-f6f-urs-1b.ntwk.msn.net
111.221.16.236	A	g.answers.ms.akadns.net
111.221.17.6	PTR	vlan170.sin-f8x-cis-4b.ntwk.msn.net
111.221.17.48	PTR	table.sg1prodd.store.core.windows.net
111.221.17.66	PTR	po31-133.sin-6nf-2a.ntwk.msn.net
111.221.17.86	PTR	mdsfe.mediaroomdemo.com
111.221.17.90	PTR	auth.mediaroomdemo.com
111.221.17.99	PTR	po31-580.sin-6nf-2b.ntwk.msn.net
111.221.17.105	PTR	p_crml_f_r_11~1.sin-f6x-1b.ntwk.msn.net
111.221.17.130	PTR	ae0-973.sin-96gmr-ucgmc-1a.ntwk.msn.net
111.221.17.131	PTR	ae0-973.sin-96gmr-ucgmc-1b.ntwk.msn.net
111.221.17.138	A	mail-sg1.bigfish.com
111.221.17.150	A	mail-sg1.bigfish.com
111.221.17.165	PTR	p_bspos_f_r_1~1.sin-f89-bspos-1e.ntwk.msn.net
111.221.17.170	A	7x5y.com
111.221.17.170	A	vonlifegroup.com
111.221.17.170	A	featurelabs.com
111.221.17.180	A	skestrata.com.au
111.221.17.183	A	pantac-china.com
111.221.17.199	A	outbound.officeapps.live.com
111.221.17.200	A	outbound.officeapps.live.com
111.221.17.201	A	outbound.officeapps.live.com
111.221.17.202	A	outbound.officeapps.live.com
111.221.17.219	A	outbound.officeapps.live.com
111.221.17.220	A+PTR	outbound.officeapps.live.com
111.221.17.221	A	outbound.officeapps.live.com
111.221.17.222	A	outbound.officeapps.live.com
111.221.18.10	PTR	msnbot-111-221-18-10.search.msn.com
111.221.18.20	A	msnbot-111-221-18-20.search.msn.com
111.221.18.24	A	msnbot-111-221-18-24.search.msn.com
111.221.18.33	A+PTR	msnbot-111-221-18-33.search.msn.com
111.221.18.35	A+PTR	msnbot-111-221-18-35.search.msn.com
111.221.18.36	A	msnbot-111-221-18-36.search.msn.com
111.221.18.40	PTR	msnbot-111-221-18-40.search.msn.com
111.221.18.49	PTR	msnbot-111-221-18-49.search.msn.com
111.221.18.51	A	msnbot-111-221-18-51.search.msn.com
111.221.18.66	PTR	port-channel1001-111.sin-x7x-msgr-1a.ntwk.msn.net
111.221.18.69	PTR	p_wns_f_r_111~1.sin-f89-wns-1a.ntwk.msn.net
111.221.18.80	A+PTR	sincd.wns.windows.com
111.221.18.83	A+PTR	sinab.wns.windows.com
111.221.18.98	PTR	po31-162.sin-6nf-2a.ntwk.msn.net
111.221.18.130	PTR	po31-620.sin-6nf-2a.ntwk.msn.net
111.221.18.152	A	main.sg.orws.microsoft.com.nsatc.net
111.221.18.153	A	main.sg.orws.microsoft.com.nsatc.net
111.221.18.155	A	main.sg.orws.microsoft.com.nsatc.net
111.221.20.134	A	sgsphealth.com
111.221.20.141	PTR	p_bspos_f_r_1~1.sin-f89-bspos-2a.ntwk.msn.net
111.221.20.145	A	frugaltech.co
111.221.20.149	A	techassist.co.nz
111.221.20.150	A	petrel.biz
111.221.20.150	A	nprgroup.com.au
111.221.20.152	A	frontforge.com
111.221.20.200	A	macchina-2008.com
111.221.20.200	A	saesolsoft.com
111.221.20.200	A	nsi.jp
111.221.20.201	PTR	sg1.mail.sharepointonline.com
111.221.20.210	A	unitedcreations.com.sg
111.221.20.210	A	krane.com.au
111.221.20.210	A	tairaseiki.com
111.221.20.220	A	rscommercial.com.au
111.221.20.225	PTR	sg.mail.sharepointonline.com
111.221.21.30	PTR	mrsin02.com
111.221.21.41	A	*.1399.r.msn.com
111.221.21.48	A	arc2.msn.com
111.221.21.49	A	arc2.msn.com
111.221.21.78	A+PTR	sg1aqu.atdmt.com
111.221.21.78	A	view.atdmt.com.nsatc.net
111.221.21.78	A	switch.atdmt.com.nsatc.net
111.221.21.79	A	view.atdmt.com.nsatc.net
111.221.21.79	A	switch.atdmt.com.nsatc.net
111.221.21.80	A	view.atdmt.com.nsatc.net
111.221.21.103	A	dns4.azure.net
111.221.21.132	PTR	port-channel1001-401.sin-x7x-srch-1b.ntwk.msn.net
111.221.21.145	PTR	msnbot-111-221-21-145.search.msn.com
111.221.21.146	PTR	msnbot-111-221-21-146.search.msn.com
111.221.21.154	PTR	msnbot-111-221-21-154.search.msn.com
111.221.21.161	PTR	msnbot-111-221-21-161.search.msn.com
111.221.21.170	PTR	msnbot-111-221-21-170.search.msn.com
111.221.21.196	PTR	port-channel1001-501.sin-x7x-srch-1b.ntwk.msn.net
111.221.21.210	PTR	msnbot-111-221-21-210.search.msn.com
111.221.21.217	PTR	msnbot-111-221-21-217.search.msn.com
111.221.21.233	PTR	msnbot-111-221-21-233.search.msn.com
111.221.22.3	PTR	e1-26-98.sin-x7x-srch-1b.ntwk.msn.net
111.221.22.4	PTR	vlan98.sin-49i-srch-1a.ntwk.msn.net
111.221.22.5	PTR	vlan98.sin-49i-srch-1b.ntwk.msn.net
111.221.22.13	PTR	ten0-2-0-138.sin-04v-cis-1a.ntwk.msn.net
111.221.22.46	A	elementaldivide.com
111.221.22.46	A	wellness-accessories.com
111.221.22.46	A	susanhuntagencies.com.au
111.221.22.50	A	es-2.com.au
111.221.22.50	A	coulsonmc.com.au
111.221.22.50	A	jytfslp.com
111.221.22.56	A	www.bored.co.nz
111.221.22.58	A	davidtan.sg
111.221.22.59	A	tomokazu.net
111.221.22.62	A	sienna.jp
111.221.22.203	A	m2m-bigdata.com
111.221.22.203	A	catalyst-it.com.au
111.221.22.203	A	eplanetonline.biz
111.221.22.205	A	propertydistrict.com.au
111.221.22.209	A	sharedservices.ac.nz
111.221.22.209	A	gmap-jp.com
111.221.22.209	A	whecc.org.au
111.221.22.210	A	iscom.com.my
111.221.22.216	A	taizonia.com
111.221.22.216	A	servanthearts.com.au
111.221.22.217	A	svistech.com
111.221.22.220	A	clickonce.co.nz
111.221.22.245	PTR	p_gsa_f_r_111~1.sin-f6f-1a.ntwk.msn.net
111.221.23.159	PTR	sinprd0302.outlook.com
111.221.23.159	A	mail.rpg.in
111.221.23.159	A	mail.rpgnet.com
111.221.23.163	PTR	xrop-sinprd0302.outlook.com
111.221.23.171	PTR	sinprd0402.outlook.com
111.221.23.175	PTR	xrop-sinprd0402.outlook.com
111.221.23.183	A+PTR	hknprd0502m.outlook.com
111.221.23.183	A	pod51023.outlook.com
111.221.23.185	PTR	pod51023psh.outlook.com
111.221.23.187	PTR	xrop-sinprd0502.outlook.com
111.221.23.195	A	mail.ennovatez.com
111.221.23.208	PTR	sinprd0404ip.outlook.com
111.221.23.209	PTR	sinprd0404psh.outlook.com
111.221.23.214	PTR	sinprd0604.outlook.com
111.221.23.219	PTR	sinprd0504.outlook.com
111.221.23.220	PTR	sinprd0504ip.outlook.com