Robtex

Up: 216.173.0.0/17
Can't show all results, try to descend to a more specific CIDR
Down left: 216.173.0.0/19
Down right: 216.173.32.0/19
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.173.2.208	A	mail.barryricearchitects.com
216.173.5.130	PTR	rmiteam.com
216.173.7.242	A	xd8ad07f2.ip.e-nt.net
216.173.10.65	PTR	xd8ad0a41.ip.e-nt.net
216.173.10.66	PTR	xd8ad0a42.ip.e-nt.net
216.173.10.128	PTR	xd8ad0a80.ip.e-nt.net
216.173.10.130	PTR	xd8ad0a82.ip.e-nt.net
216.173.10.194	PTR	xd8ad0ac2.ip.e-nt.net
216.173.10.195	PTR	ns1432.ztomy.com
216.173.11.64	PTR	xd8ad0b40.ip.e-nt.net
216.173.11.66	PTR	xd8ad0b42.ip.e-nt.net
216.173.11.67	PTR	xd8ad0b43.ip.e-nt.net
216.173.12.242	A	rasiniusa.com
216.173.12.242	A	mail.rasiniusa.com
216.173.12.242	A	*.rasiniusa.com
216.173.15.52	A	mail.levinegreenberg.com
216.173.15.162	A	xd8ad0fa2.ip.e-nt.net
216.173.19.67	PTR	xd8ad1343.ip.e-nt.net
216.173.21.85	A	xd8ad1555.ip.e-nt.net
216.173.21.140	A	xd8ad158c.ip.e-nt.net
216.173.21.148	A	xd8ad1594.ip.e-nt.net
216.173.23.0	PTR	xd8ad1700.ip.e-nt.net
216.173.23.1	PTR	xd8ad1701.ip.e-nt.net
216.173.23.129	PTR	xd8ad1781.ip.e-nt.net
216.173.23.192	PTR	xd8ad17c0.ip.e-nt.net
216.173.32.131	PTR	xd8ad2083.ip.e-nt.net
216.173.33.43	A	exchange.hzlaw.com
216.173.33.47	A	remote.dfishlaw.com
216.173.33.53	A	remote.stellp.com
216.173.34.81	A	*.imssite.com
216.173.34.90	A	mail.imssite.com
216.173.34.196	A	mail.535-545fifthave.com
216.173.35.3	PTR	xd8ad2303.ip.e-nt.net
216.173.35.128	PTR	xd8ad2380.ip.e-nt.net
216.173.38.4	PTR	xd8ad2604.ip.e-nt.net
216.173.39.98	A	gateway.project1.com
216.173.39.100	A	epgate.project1.com
216.173.39.154	A	mail2.healthace.com
216.173.40.37	A	s02.ews.voip.nyc1.e-nt.net
216.173.40.37	A	eurekanetworks.net
216.173.40.37	A	hme0.s02.ews.voip.nyc1.e-nt.net
216.173.42.64	PTR	xd8ad2a40.ip.e-nt.net
216.173.43.235	A	xd8ad2beb.ip.e-nt.net
216.173.44.53	A	persits.org
216.173.45.65	PTR	xd8ad2d41.ip.e-nt.net
216.173.45.131	PTR	xd8ad2d83.ip.e-nt.net
216.173.46.71	A	4metals.com
216.173.46.211	A	spam2.bizzipartners.com
216.173.46.211	A	spam.bizzipartners.com
216.173.46.212	A	mail2.bizzipartners.com
216.173.46.212	A	mail.bizzipartners.com
216.173.47.120	A	peyalex.com
216.173.49.162	A	olmer.olmsteadinc.com
216.173.50.193	PTR	xd8ad32c1.ip.e-nt.net
216.173.52.2	PTR	mail.tempositions.com
216.173.52.90	A	xd8ad345a.ip.e-nt.net
216.173.53.66	PTR	smtp.cbah.com
216.173.53.66	PTR	smtp.certilmanbalin.com
216.173.53.213	A	xd8ad35d5.ip.e-nt.net
216.173.57.161	A	xd8ad39a1.ip.e-nt.net
216.173.60.172	A	nychotelstrike.org
216.173.60.172	A	hiltonhotelspuertorico.com
216.173.60.172	A	hiltonhotelscaribbean.com
216.173.61.135	A	*.comfortours.com
216.173.61.135	A	comfortours.com
216.173.61.135	A	www.comfortours.com
216.173.61.136	A	interstellarsoftware.net
216.173.61.251	A	server1.aggregatedistribution.com
216.173.61.253	A	mx.tmedg.com
216.173.63.10	A	mail.snya.org