Robtex

Up: 64.4.0.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 64.4.16.0/21
Down right: 64.4.24.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
64.4.16.15	A	cid-e2604d35a690ccdc.profile.live.com
64.4.16.15	A	cid-de62656248002548.profile.live.com
64.4.16.15	A	cid-a7e683cdae410cc6.profile.live.com
64.4.16.27	A	pacutil.live.net
64.4.16.172	A	baymsg2011518.gateway.messenger.live.com
64.4.16.176	A+PTR	baymsg2011522.gateway.messenger.live.com
64.4.16.202	A	baymsg2011606.gateway.messenger.live.com
64.4.16.219	A	nexus.msa.akadns6.net
64.4.16.238	A	login.passport.com.nsatc.net
64.4.16.238	A	legacy.msa.akadns6.net
64.4.17.18	A+PTR	bayvlsc03.microsoft.com
64.4.17.25	A	bayprofile14.microsoft.com
64.4.17.26	A	bayprofile15.microsoft.com
64.4.17.158	A	mobilectp.microsoft.com
64.4.17.249	A	by111w.bay111.mail.start.com
64.4.18.12	A	sslvip25.sjc9.msecn.net
64.4.18.22	A+PTR	by2.gnstools.baseline.msft.net
64.4.18.24	A	testocsconnectivity.com
64.4.18.29	A	connectivity.microsoft.com
64.4.18.39	A	stg-testocsconnectivity.com
64.4.18.60	PTR	microsoftvin.com
64.4.18.60	A	windowsvine.com.br
64.4.18.60	A	windowsvine.ca
64.4.18.75	A	www.eslassistant.com
64.4.18.75	A	eslassistant.com
64.4.18.81	A	sslvip1.sjc9.msecn.net
64.4.18.140	PTR	vicinity.com
64.4.20.0	A	robertcollege.k12.tr
64.4.20.4	A	main.oremdl.microsoft.com.nsatc.net
64.4.20.5	A	main.oremdl.microsoft.com.nsatc.net
64.4.20.6	A	main.oremdl.microsoft.com.nsatc.net
64.4.20.7	A	main.oremdl.microsoft.com.nsatc.net
64.4.20.169	A	mail.mullvadenandra45.se
64.4.20.169	A	arriyadh.com
64.4.20.186	A	mail.sd-dayang.com
64.4.21.3	PTR	po50-563.bay-6nx-hot-1b.ntwk.msn.net
64.4.21.13	A	bay0-oss-db02.bay0.hotmail.com
64.4.21.15	A	bay0-oss-dw02.bay0.hotmail.com
64.4.21.46	A	camp-image.current.adcenter-pace.microsoft.com
64.4.21.60	A	api.current.adcenter-pace.microsoft.com
64.4.21.62	A	ccapi.current.adcenter-pace.microsoft.com
64.4.21.62	A	cam.current.adcenter-pace.microsoft.com
64.4.21.177	A+PTR	img2.windowsmarketplace.com
64.4.21.177	A	img.windowsmarketplace.com
64.4.21.178	A	barcod.store.microsoft.com
64.4.22.10	A	msacp.com
64.4.22.45	PTR	adcenterhelp-si.microsoft.com
64.4.22.47	PTR	devint.f.msn.com
64.4.22.64	PTR	na01-by1-obe.ptr.o365filtering.com
64.4.22.65	PTR	na01-by1-obe.ptr.o365filtering.com
64.4.22.66	PTR	na01-by1-obe.ptr.o365filtering.com
64.4.22.67	PTR	na01-by1-obe.ptr.o365filtering.com
64.4.22.75	A	ecoliville-com.mail.o365filtering.com
64.4.22.75	A	elberren-com.mail.o365filtering.com
64.4.22.75	A	winoman-com.mail.o365filtering.com
64.4.22.80	PTR	na01-by1-obe.ptr.o365filtering.com
64.4.22.81	PTR	na01-by1-obe.ptr.o365filtering.com
64.4.22.82	PTR	na01-by1-obe.ptr.o365filtering.com
64.4.22.83	PTR	na01-by1-obe.ptr.o365filtering.com
64.4.22.86	A	syncservice.o365filtering.com
64.4.22.87	A	na01-by1-obe.ptr.o365filtering.com
64.4.22.87	A	by1c-ob.o365filtering.com
64.4.22.87	A	mail-by1ln0087.outbound.o365filtering.com
64.4.22.88	A	na01-by1-obe.ptr.o365filtering.com
64.4.22.88	A	by1c-ob.o365filtering.com
64.4.22.89	A	na01-by1-obe.ptr.o365filtering.com
64.4.22.89	A	by1c-ob.o365filtering.com
64.4.22.90	A	na01-by1-obe.ptr.o365filtering.com
64.4.22.90	A	by1c-ob.o365filtering.com
64.4.22.91	A	na01-by1-obe.ptr.o365filtering.com
64.4.22.91	A	by1c-ob.o365filtering.com
64.4.22.92	A	na01-by1-obe.ptr.o365filtering.com
64.4.22.92	A	by1c-ob.o365filtering.com
64.4.22.93	A	na01-by1-obe.ptr.o365filtering.com
64.4.22.93	A	by1c-ob.o365filtering.com
64.4.22.94	A	na01-by1-obe.ptr.o365filtering.com
64.4.22.94	A	by1c-ob.o365filtering.com
64.4.22.96	PTR	na01-by1-obe.ptr.o365filtering.com
64.4.22.97	PTR	na01-by1-obe.ptr.o365filtering.com
64.4.22.98	PTR	na01-by1-obe.ptr.o365filtering.com
64.4.22.99	PTR	na01-by1-obe.ptr.o365filtering.com
64.4.22.106	A	ns2-c.o365filtering.com
64.4.22.106	A	dns-by1n0106.outbound.o365filtering.com
64.4.22.106	A	ns1-c.o365filtering.com
64.4.22.112	PTR	na01-by1-obe.ptr.o365filtering.com
64.4.22.113	PTR	na01-by1-obe.ptr.o365filtering.com
64.4.22.114	PTR	na01-by1-obe.ptr.o365filtering.com
64.4.22.115	PTR	na01-by1-obe.ptr.o365filtering.com
64.4.22.128	A+PTR	msnbot-64-4-22-128.search.msn.com
64.4.22.129	A+PTR	msnbot-64-4-22-129.search.msn.com
64.4.22.129	PTR	msnbot-65-55-25-129.search.msn.com
64.4.22.130	PTR	msnbot-64-4-22-130.search.msn.com
64.4.22.130	PTR	msnbot-65-55-25-130.search.msn.com
64.4.22.131	A+PTR	msnbot-64-4-22-131.search.msn.com
64.4.22.131	PTR	msnbot-65-55-25-131.search.msn.com
64.4.22.131	PTR	po16-216.bay-6nx-srch-1a.ntwk.msn.net
64.4.22.132	A	msnbot-64-4-22-132.search.msn.com
64.4.22.144	A+PTR	msnbot-64-4-22-144.search.msn.com
64.4.22.144	PTR	msnbot-65-55-25-144.search.msn.com
64.4.22.145	PTR	msnbot-64-4-22-145.search.msn.com
64.4.22.145	PTR	msnbot-65-55-25-145.search.msn.com
64.4.22.146	A+PTR	msnbot-64-4-22-146.search.msn.com
64.4.22.146	PTR	msnbot-65-55-25-146.search.msn.com
64.4.22.147	A+PTR	msnbot-64-4-22-147.search.msn.com
64.4.22.147	PTR	msnbot-65-55-25-147.search.msn.com
64.4.22.148	A	msnbot-64-4-22-148.search.msn.com
64.4.22.160	PTR	msnbot-64-4-22-160.search.msn.com
64.4.22.160	PTR	msnbot-65-55-25-160.search.msn.com
64.4.22.161	A+PTR	msnbot-64-4-22-161.search.msn.com
64.4.22.161	PTR	msnbot-65-55-25-161.search.msn.com
64.4.22.162	PTR	msnbot-64-4-22-162.search.msn.com
64.4.22.162	PTR	msnbot-65-55-25-162.search.msn.com
64.4.22.163	PTR	msnbot-64-4-22-163.search.msn.com
64.4.22.163	PTR	msnbot-65-55-25-163.search.msn.com
64.4.22.164	A	msnbot-64-4-22-164.search.msn.com
64.4.22.167	A	msnbot-64-4-22-167.search.msn.com
64.4.22.168	A	msnbot-64-4-22-168.search.msn.com
64.4.22.176	PTR	msnbot-64-4-22-176.search.msn.com
64.4.22.176	PTR	msnbot-65-55-25-176.search.msn.com
64.4.22.177	A+PTR	msnbot-64-4-22-177.search.msn.com
64.4.22.177	PTR	msnbot-65-55-25-177.search.msn.com
64.4.22.178	A+PTR	msnbot-64-4-22-178.search.msn.com
64.4.22.178	PTR	msnbot-65-55-25-178.search.msn.com
64.4.22.179	A+PTR	msnbot-64-4-22-179.search.msn.com
64.4.22.179	PTR	msnbot-65-55-25-179.search.msn.com
64.4.22.181	A	msnbot-64-4-22-181.search.msn.com
64.4.22.192	A+PTR	msnbot-64-4-22-192.search.msn.com
64.4.22.192	PTR	msnbot-65-55-25-192.search.msn.com
64.4.22.193	PTR	msnbot-64-4-22-193.search.msn.com
64.4.22.193	PTR	msnbot-65-55-25-193.search.msn.com
64.4.22.194	A+PTR	msnbot-64-4-22-194.search.msn.com
64.4.22.194	PTR	msnbot-65-55-25-194.search.msn.com
64.4.22.195	PTR	msnbot-64-4-22-195.search.msn.com
64.4.22.195	PTR	msnbot-65-55-25-195.search.msn.com
64.4.22.196	A	msnbot-64-4-22-196.search.msn.com
64.4.22.199	A	msnbot-64-4-22-199.search.msn.com
64.4.22.208	A+PTR	msnbot-64-4-22-208.search.msn.com
64.4.22.208	PTR	msnbot-65-55-25-208.search.msn.com
64.4.22.209	A+PTR	msnbot-64-4-22-209.search.msn.com
64.4.22.209	PTR	msnbot-65-55-25-209.search.msn.com
64.4.22.210	PTR	msnbot-64-4-22-210.search.msn.com
64.4.22.210	PTR	msnbot-65-55-25-210.search.msn.com
64.4.22.211	A+PTR	msnbot-64-4-22-211.search.msn.com
64.4.22.211	PTR	msnbot-65-55-25-211.search.msn.com
64.4.22.212	A	msnbot-64-4-22-212.search.msn.com
64.4.22.224	PTR	msnbot-64-4-22-224.search.msn.com
64.4.22.224	PTR	msnbot-65-55-25-224.search.msn.com
64.4.22.225	PTR	msnbot-64-4-22-225.search.msn.com
64.4.22.225	PTR	msnbot-65-55-25-225.search.msn.com
64.4.22.226	PTR	msnbot-64-4-22-226.search.msn.com
64.4.22.226	PTR	msnbot-65-55-25-226.search.msn.com
64.4.22.227	A+PTR	msnbot-64-4-22-227.search.msn.com
64.4.22.227	PTR	msnbot-65-55-25-227.search.msn.com
64.4.22.229	A	msnbot-64-4-22-229.search.msn.com
64.4.22.233	A	msnbot-64-4-22-233.search.msn.com
64.4.22.234	A	msnbot-64-4-22-234.search.msn.com
64.4.22.240	PTR	msnbot-64-4-22-240.search.msn.com
64.4.22.240	PTR	msnbot-65-55-25-240.search.msn.com
64.4.22.241	PTR	msnbot-64-4-22-241.search.msn.com
64.4.22.241	PTR	msnbot-65-55-25-241.search.msn.com
64.4.22.242	PTR	msnbot-64-4-22-242.search.msn.com
64.4.22.242	PTR	msnbot-65-55-25-242.search.msn.com
64.4.22.243	PTR	msnbot-64-4-22-243.search.msn.com
64.4.22.243	PTR	msnbot-65-55-25-243.search.msn.com
64.4.22.246	A	msnbot-64-4-22-246.search.msn.com
64.4.22.247	A	msnbot-64-4-22-247.search.msn.com
64.4.22.250	A	msnbot-64-4-22-250.search.msn.com
64.4.22.252	A	msnbot-64-4-22-252.search.msn.com
64.4.23.2	PTR	po31-149.by2-6nx-sup-1a.ntwk.msn.net
64.4.23.3	PTR	po31-149.by2-6nx-sup-1b.ntwk.msn.net
64.4.23.130	PTR	po31-289.bay-6nf-1a.ntwk.msn.net
64.4.23.141	A	dsn12.skype-dsn.akadns.net
64.4.23.141	A	dsn16.skype-dsn.akadns.net
64.4.23.141	A	dsn13.skype-dsn.akadns.net
64.4.23.142	A	dsn8.skype-dsn.akadns.net
64.4.23.143	A	dsn13.skype-dsn.akadns.net
64.4.23.143	A	dsn3.skype-dsn.akadns.net
64.4.23.144	A	dsn16.skype-dsn.akadns.net
64.4.23.144	A	dsn13.skype-dsn.akadns.net
64.4.23.144	A	dsn3.skype-dsn.akadns.net
64.4.23.145	A	dsn8.skype-dsn.akadns.net
64.4.23.147	A	dsn9.skype-dsn.akadns.net
64.4.23.149	A	dsn12.skype-dsn.akadns.net
64.4.23.149	A	dsn13.skype-dsn.akadns.net
64.4.23.149	A	dsn7.skype-dsn.akadns.net
64.4.23.150	A	dsn12.skype-dsn.akadns.net
64.4.23.150	A	dsn3.skype-dsn.akadns.net
64.4.23.151	A	dsn12.skype-dsn.akadns.net
64.4.23.151	A	dsn3.skype-dsn.akadns.net
64.4.23.151	A	dsn8.skype-dsn.akadns.net
64.4.23.153	A	dsn12.skype-dsn.akadns.net
64.4.23.153	A	dsn11.skype-dsn.akadns.net
64.4.23.154	A	dsn16.skype-dsn.akadns.net
64.4.23.154	A	dsn13.skype-dsn.akadns.net
64.4.23.154	A	dsn7.skype-dsn.akadns.net
64.4.23.155	A	dsn12.skype-dsn.akadns.net
64.4.23.155	A	dsn13.skype-dsn.akadns.net
64.4.23.155	A	dsn7.skype-dsn.akadns.net
64.4.23.156	A	dsn16.skype-dsn.akadns.net
64.4.23.156	A	dsn13.skype-dsn.akadns.net
64.4.23.156	A	dsn3.skype-dsn.akadns.net
64.4.23.157	A	dsn12.skype-dsn.akadns.net
64.4.23.157	A	dsn0.skype-dsn.akadns.net
64.4.23.157	A	dsn9.skype-dsn.akadns.net
64.4.23.158	A	dsn8.skype-dsn.akadns.net
64.4.23.158	A	dsn9.skype-dsn.akadns.net
64.4.23.159	A	dsn0.skype-dsn.akadns.net
64.4.23.159	A	dsn11.skype-dsn.akadns.net
64.4.23.160	A	dsn12.skype-dsn.akadns.net
64.4.23.160	A	dsn16.skype-dsn.akadns.net
64.4.23.160	A	dsn13.skype-dsn.akadns.net
64.4.23.161	A	dsn3.skype-dsn.akadns.net
64.4.23.161	A	dsn8.skype-dsn.akadns.net
64.4.23.161	A	dsn9.skype-dsn.akadns.net
64.4.23.162	A	dsn12.skype-dsn.akadns.net
64.4.23.162	A	dsn7.skype-dsn.akadns.net
64.4.23.162	A	dsn8.skype-dsn.akadns.net
64.4.23.163	A	dsn12.skype-dsn.akadns.net
64.4.23.163	A	dsn7.skype-dsn.akadns.net
64.4.23.164	A	dsn12.skype-dsn.akadns.net
64.4.23.164	A	dsn16.skype-dsn.akadns.net
64.4.23.164	A	dsn0.skype-dsn.akadns.net
64.4.23.165	A	dsn12.skype-dsn.akadns.net
64.4.23.165	A	dsn11.skype-dsn.akadns.net
64.4.23.166	A	dsn16.skype-dsn.akadns.net
64.4.23.166	A	dsn8.skype-dsn.akadns.net
64.4.23.166	A	dsn11.skype-dsn.akadns.net
64.4.23.167	A	dsn8.skype-dsn.akadns.net
64.4.23.167	A	dsn11.skype-dsn.akadns.net
64.4.23.168	A	dsn3.skype-dsn.akadns.net
64.4.23.168	A	dsn11.skype-dsn.akadns.net
64.4.23.169	A	dsn16.skype-dsn.akadns.net
64.4.23.169	A	dsn13.skype-dsn.akadns.net
64.4.23.169	A	dsn3.skype-dsn.akadns.net
64.4.23.170	A	dsn12.skype-dsn.akadns.net
64.4.23.170	A	dsn16.skype-dsn.akadns.net
64.4.23.170	A	dsn0.skype-dsn.akadns.net
64.4.23.171	A	dsn9.skype-dsn.akadns.net
64.4.23.172	A	dsn16.skype-dsn.akadns.net
64.4.23.172	A	dsn8.skype-dsn.akadns.net
64.4.23.172	A	dsn9.skype-dsn.akadns.net
64.4.23.173	A	dsn16.skype-dsn.akadns.net
64.4.23.173	A	dsn3.skype-dsn.akadns.net
64.4.23.173	A	dsn8.skype-dsn.akadns.net
64.4.23.174	A	dsn12.skype-dsn.akadns.net
64.4.23.174	A	dsn8.skype-dsn.akadns.net
64.4.23.174	A	dsn0.skype-dsn.akadns.net
64.4.23.175	A	dsn7.skype-dsn.akadns.net
64.4.23.175	A	dsn0.skype-dsn.akadns.net
64.4.23.176	A	dsn16.skype-dsn.akadns.net
64.4.23.176	A	dsn13.skype-dsn.akadns.net
64.4.23.176	A	dsn9.skype-dsn.akadns.net
64.4.25.66	PTR	po50-172.bay-6nx-hot-1a.ntwk.msn.net
64.4.26.48	A+PTR	max.sup.live.com
64.4.26.72	A	storedr.microsoft.com
64.4.26.153	A+PTR	baysoc.msgr.msn.com
64.4.26.155	A+PTR	sn1soc.msgr.msn.com
64.4.26.155	A	config.messenger.msnmessenger.msn.com.akadns.net
64.4.26.156	A	smc.rtlc.live.com
64.4.27.50	A	fe1.ws.microsoft.com
64.4.27.50	A	fe1.ws.microsoft.com.nsatc.net
64.4.27.77	A	cp.messenger.hotmail.com
64.4.27.167	A	baymb-cs27.msgr.hotmail.com
64.4.27.182	A	baymb-sb2.msgr.hotmail.com
64.4.28.19	A	baymsg2011519.wns.windows.com
64.4.28.37	A	calr-db01.d.dev.hotmail.com
64.4.28.131	A+PTR	baymsg2011223.gateway.messenger.live.com
64.4.29.24	A	ns4.hotmail.com
64.4.29.130	PTR	network-64.4.29.hotmail.com
64.4.30.2	PTR	ten3-3-566.bay-6nf-1a.ntwk.msn.net
64.4.30.13	A+PTR	wwwbaytest33.microsoft.com
64.4.30.14	A	wwwbaytest34.microsoft.com
64.4.30.15	A	wwwbaytest35.microsoft.com
64.4.30.61	A+PTR	imp.microsoft.com
64.4.30.62	A+PTR	d.imp.microsoft.com
64.4.30.103	A+PTR	piinternalfeppe.microsoft.com
64.4.30.133	PTR	vincilagrandemela.it
64.4.30.174	A+PTR	mpn.microsoft.com
64.4.30.175	A	learningservices.microsoft.akadns.net
64.4.30.175	A	learningservices.microsoft.com
64.4.30.199	A+PTR	s.imp.microsoft.com
64.4.30.205	A+PTR	ws3.msllab.microsoft.com
64.4.31.252	A+PTR	wwwbay3vip.microsoft.com