Robtex

Up: 216.164.0.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 216.164.32.0/20
Down right: 216.164.48.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.164.33.1	PTR	bdl1.slvr-ubr1.lnh-slvr.md.cable.rcn.net
216.164.33.1	A+PTR	216-164-33-1.c3-0.snb-ubr1.chi-snb.il.cable.rcn.com
216.164.34.56	PTR	216-164-34-56.c3-0.snb-ubr1.chi-snb.il.cable.rcn.com
216.164.34.193	A+PTR	216-164-34-193.c3-0.snb-ubr1.chi-snb.il.cable.rcn.com
216.164.35.70	PTR	216-164-35-70.c3-0.snb-ubr1.chi-snb.il.cable.rcn.com
216.164.36.2	PTR	216-164-36-2.c3-0.snb-ubr1.chi-snb.il.cable.rcn.com
216.164.36.101	A+PTR	216-164-36-101.c3-0.snb-ubr1.chi-snb.il.cable.rcn.com
216.164.40.1	PTR	bdl1.ses-ubr1.lnh-ses.md.cable.rcn.net
216.164.40.1	A	bdl1.80w-ubr1.nyr-80w.ny.cable.rcn.net
216.164.44.3	PTR	main3.washpost.com
216.164.44.4	A+PTR	main4.washpost.com
216.164.44.6	A	main3.washpost.com
216.164.44.10	A	main10.washpost.com
216.164.44.30	A	inbound3.washpost.com
216.164.44.125	A	nwdns1.washpost.com
216.164.44.125	A	wd3.nw.wpni.net
216.164.45.11	A	w2k3web2.web.rcn.net
216.164.45.50	PTR	w2k3.web.rcn.net
216.164.45.50	A	www.accumetmaterials.com
216.164.45.50	A	apprimus.biz
216.164.45.51	PTR	fbsd.web.rcn.net
216.164.45.51	A	www.johnfranklinbardin.com
216.164.45.51	A	smartny.com
216.164.45.110	A+PTR	fbsdweb1.web.rcn.net
216.164.45.114	A	fbsdstats.web.rcn.net
216.164.45.115	A	fbsdmgmt.web.rcn.net
216.164.45.150	A+PTR	webtools.web.rcn.net
216.164.45.236	A+PTR	csc.rcn.com
216.164.45.236	A	nt-hosting.rcn.com
216.164.46.3	PTR	vl392.aggr3.lnh.md.rcn.net
216.164.46.4	A	appspot.com--www.0757js.net
216.164.46.4	A	pizzeriauno.com
216.164.46.21	A	smartny.com
216.164.46.21	A	smartcom.nyc
216.164.46.32	A	samgiammalvo.com
216.164.46.32	A	samscars.com
216.164.46.32	A	www.samscars.net
216.164.47.7	A	www.mandarintools.com
216.164.47.11	A	1pbs.net
216.164.47.14	A	csdr.org
216.164.47.14	A	www.csdr.org
216.164.48.0	A+PTR	216-164-48-0.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com
216.164.48.1	A+PTR	bdl1.slvr-ubr1.lnh-slvr.md.cable.rcn.net
216.164.48.1	PTR	216-164-48-1.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com
216.164.48.30	A	fryehousehold.info
216.164.48.33	A+PTR	216-164-48-33.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com
216.164.48.44	A	216-164-48-44.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com
216.164.48.119	A	216-164-48-119.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com
216.164.48.128	PTR	216-164-48-128.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com
216.164.48.155	A	216-164-48-155.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com
216.164.48.205	A	216-164-48-205.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com
216.164.48.206	A	216-164-48-206.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com
216.164.48.217	A	216-164-48-217.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com
216.164.49.27	A	216-164-49-27.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com
216.164.49.40	A	216-164-49-40.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com
216.164.49.64	PTR	216-164-49-64.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com
216.164.49.113	A	216-164-49-113.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com
216.164.49.131	A+PTR	216-164-49-131.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com
216.164.49.154	A	216-164-49-154.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com
216.164.49.184	A	216-164-49-184.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com
216.164.49.228	A	216-164-49-228.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com
216.164.49.244	A	216-164-49-244.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com
216.164.50.1	PTR	bdl1.slvr-ubr1.lnh-slvr.md.cable.rcn.net
216.164.50.1	A+PTR	216-164-50-1.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com
216.164.50.44	A	216-164-50-44.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com
216.164.50.50	A	cozarealms.com
216.164.50.205	A	216-164-50-205.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com
216.164.51.56	A	mail.janiserver.com
216.164.51.251	A	216-164-51-251.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com
216.164.52.80	A	216-164-52-80.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com
216.164.52.140	A	216-164-52-140.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com
216.164.53.177	A	ctzz.us
216.164.54.210	A	middayramble.com
216.164.54.214	A	216-164-54-214.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com
216.164.56.71	A	216-164-56-71.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com
216.164.56.88	A	technagon.com
216.164.56.98	PTR	216-164-56-98.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com
216.164.56.194	PTR	216-164-56-194.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com
216.164.57.1	PTR	bdl1.bth-ubr1.lnh-bth.md.cable.rcn.net
216.164.57.1	A+PTR	216-164-57-1.s4351.c3-0.slvr-cbr1.lnh-slvr.md.cable.rcncustomer.com
216.164.57.21	A	216-164-57-21.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com
216.164.57.99	PTR	216-164-57-99.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com
216.164.57.225	PTR	216-164-57-225.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com
216.164.59.1	PTR	bdl1.bth-ubr1.lnh-bth.md.cable.rcn.net
216.164.59.1	A+PTR	216-164-59-1.s4863.c3-0.slvr-cbr1.lnh-slvr.md.cable.rcncustomer.com
216.164.59.155	A	zfamilystation.com
216.164.59.160	A	216-164-59-160.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com
216.164.59.229	A	216-164-59-229.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com
216.164.59.231	A	216-164-59-231.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com
216.164.60.68	A	216-164-60-68.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com
216.164.60.98	A+PTR	216-164-60-98.s5216.c3-0.slvr-cbr1.lnh-slvr.md.cable.rcncustomer.com
216.164.61.104	A	216-164-61-104.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com
216.164.62.251	A	216-164-62-251.c3-0.slvr-ubr1.lnh-slvr.md.cable.rcn.com