Robtex

Up: 207.172.80.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 207.172.80.0/22
Down right: 207.172.84.0/22

IP	Type	Hostname
207.172.81.1	PTR	bdl1.bth-ubr1.lnh-bth.md.cable.rcn.net
207.172.84.6	A	mail.jtsegars.com
207.172.85.1	A	bdl1.slvr-ubr1.lnh-slvr.md.cable.rcn.net
207.172.85.35	A	chs-observatory.com
207.172.85.38	A+PTR	207-172-85-38.c3-0.129-ubr1.lnh-129.md.static.cable.rcn.com
207.172.85.38	A	mail.adamkclark.com
207.172.85.38	A	mail.akvas.com
207.172.85.40	A	smtp.hopelesslydelicious.com
207.172.85.40	A	myinnersanctum.org
207.172.85.40	A	hopelesslydelicious.com
207.172.85.44	PTR	207-172-85-44.c3-0.129-ubr1.lnh-129.md.static.cable.rcncustomer.com
207.172.85.44	A	chrisanncleland.com
207.172.85.49	A	mail.criticalbeatdown.net
207.172.85.49	A	mail.jamescleland.com
207.172.85.50	PTR	207-172-85-50.c3-0.129-ubr1.lnh-129.md.static.cable.rcncustomer.com
207.172.85.51	PTR	207-172-85-51.c3-0.129-ubr1.lnh-129.md.static.cable.rcncustomer.com
207.172.85.51	A	bristowenews.com
207.172.85.53	A	princess-phd.com
207.172.85.56	PTR	207-172-85-56.c3-0.129-ubr1.lnh-129.md.static.cable.rcn.com
207.172.85.56	A	efpsolutions.com
207.172.85.56	A	appeta.com
207.172.85.57	A	dopey.seqsys.com
207.172.85.57	A	dns1.seqsys.com
207.172.85.59	PTR	207-172-85-59.c3-0.129-ubr1.lnh-129.md.static.cable.rcn.com
207.172.85.188	A	na.dr.spamhaus.net
207.172.85.189	A	t.ns.spamhaus.net
207.172.85.190	A	t.ns.spamhaus.org
207.172.85.192	A	c3-0.129-ubr2.lnh-129.md.static.cable.rcn.net
207.172.85.194	PTR	207-172-85-194.c3-0.129-ubr1.lnh-129.md.static.cable.rcncustomer.com
207.172.85.194	A	mail.dethgears.com
207.172.85.203	PTR	207-172-85-203.c3-0.129-ubr1.lnh-129.md.static.cable.rcncustomer.com
207.172.85.206	A	la-cholter.com
207.172.85.207	A	divergentconcepts.com
207.172.85.207	A	tedsbigride.com
207.172.85.207	A	mail.tedsbigride.com
207.172.86.1	PTR	static.rcn.com