Robtex

Up: 72.205.160.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 72.205.160.0/23
Down right: 72.205.162.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
72.205.160.66	A+PTR	wsip-72-205-160-66.hr.hr.cox.net
72.205.160.66	A	mail.freedomshootingcenter.com
72.205.160.69	A+PTR	wsip-72-205-160-69.hr.hr.cox.net
72.205.160.69	A	office2.360itpartners.com
72.205.160.87	A	emgwebcam.com
72.205.160.94	A+PTR	wsip-72-205-160-94.hr.hr.cox.net
72.205.160.94	A	mail.moldguy911.com
72.205.160.121	A+PTR	wsip-72-205-160-121.hr.hr.cox.net
72.205.160.154	A+PTR	wsip-72-205-160-154.hr.hr.cox.net
72.205.160.179	A+PTR	wsip-72-205-160-179.hr.hr.cox.net
72.205.160.179	A	vansantgusler.com
72.205.160.179	A	www.vansantgusler.com
72.205.160.183	PTR	mail2.firstnorfolk.org
72.205.160.190	A	mail.tlgva.com
72.205.160.248	A	mx.manningdg.com
72.205.162.12	A+PTR	mail2.hrfn.net
72.205.162.12	A	pop.hrfn.net
72.205.162.12	A	machine1.hrfn.net
72.205.162.14	PTR	wsip-72-205-162-14.hr.hr.cox.net
72.205.162.15	PTR	wsip-72-205-162-15.hr.hr.cox.net
72.205.162.17	PTR	wsip-72-205-162-17.hr.hr.cox.net
72.205.162.17	A	machine1.hrfn.net
72.205.162.17	A	machine12.hrfn.net
72.205.162.19	PTR	wsip-72-205-162-19.hr.hr.cox.net
72.205.162.20	A+PTR	wsip-72-205-162-20.hr.hr.cox.net
72.205.162.20	A	machine1.hrfn.net
72.205.162.20	A	hrfn.net
72.205.162.73	A+PTR	mail.bcsvoicedata.com
72.205.162.81	PTR	mail.bcsvoicedata.com
72.205.162.81	A	mx.bcsvoicedata.com
72.205.162.196	PTR	wsip-72-205-162-196.hr.hr.cox.net
72.205.162.197	A+PTR	wsip-72-205-162-197.hr.hr.cox.net
72.205.162.197	A	enterprisemx.essmnavy.net
72.205.163.82	A	mx2.ossvirginia.com
72.205.163.82	A	mx.ossvirginia.com
72.205.163.234	A+PTR	wsip-72-205-163-234.hr.hr.cox.net
72.205.163.234	A	mail.ardx.net