Robtex

Up: 64.53.80.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 64.53.82.0/24
Down right: 64.53.83.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
64.53.82.8	PTR	dsl-8.static.grp3.tnmmrl.infoave.net
64.53.82.50	PTR	dsl-50.static.grp3.tnmmrl.infoave.net
64.53.82.59	PTR	dsl-59.static.grp3.tnmmrl.infoave.net
64.53.82.80	PTR	dsl-80.static.grp3.tnmmrl.infoave.net
64.53.82.187	PTR	dsl-187.static.grp3.tnmmrl.infoave.net
64.53.82.214	A	dsl-214.static.grp3.tnmmrl.infoave.net
64.53.82.235	A+PTR	dsl-235.static.grp3.tnmmrl.infoave.net
64.53.82.240	A+PTR	dsl-240.static.grp3.tnmmrl.infoave.net
64.53.82.249	A	dsl-249.static.grp3.tnmmrl.infoave.net
64.53.83.18	A+PTR	mail3.rhythm-na.com
64.53.83.22	PTR	mail2.rhythm-na.com
64.53.83.83	A+PTR	alwaysknowing.com
64.53.83.83	A	mywebeyes.com
64.53.83.83	A	allknowingeye.com
64.53.83.132	PTR	console.tnmmrl.infoave.net
64.53.83.132	A	rad0.volfirst.net
64.53.83.132	A	ns1.volfirst.net
64.53.83.140	PTR	www.aworldwide.net
64.53.83.140	A	alphabetletters.com
64.53.83.140	A	tfortennessee.com
64.53.83.141	PTR	www.aachristmas.com
64.53.83.142	A	wcsh1977.com
64.53.83.171	PTR	pix1.fw.blomand.net
64.53.83.225	PTR	mail.advancedzzz.com
64.53.83.225	A	hostmaster.marketshare2001.com
64.53.83.245	A+PTR	mail.advancedzzz.com
64.53.83.247	A	barracuda.advancedzzz.com
64.53.83.248	A	quebecktn.com
64.53.83.248	A	hostmaster.coleskingdom.com
64.53.83.248	A	doyletn.com
64.53.83.251	PTR	advancedzzz.com
64.53.83.251	A	*.maax.org
64.53.83.251	A	*.netmaximizer.com