Robtex

Up: 207.215.0.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 207.215.32.0/20
Down right: 207.215.48.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
207.215.32.2	PTR	ws-207-215-32-2.fsrcorp.com
207.215.33.1	PTR	ws-207-215-33-1.fsrcorp.com
207.215.33.2	PTR	ws-207-215-33-2.fsrcorp.com
207.215.33.64	PTR	ws-207-215-33-64.fsrcorp.com
207.215.33.96	PTR	ws-207-215-33-96.fsrcorp.com
207.215.33.128	PTR	ws-207-215-33-128.fsrcorp.com
207.215.33.130	PTR	ws-207-215-33-130.fsrcorp.com
207.215.33.224	PTR	ws-207-215-33-224.fsrcorp.com
207.215.33.226	PTR	ws-207-215-33-226.fsrcorp.com
207.215.48.80	A	myaltamed.net
207.215.48.80	A	mail.altamed.org
207.215.48.94	PTR	207-215-48-94.altamed.org
207.215.48.94	A	mail2.altamed.org
207.215.48.94	A	mail1.altamed.org
207.215.48.124	PTR	207-215-48-124.altamed.org
207.215.48.124	A	la.altamed.org
207.215.48.124	A	207-215-48-80.altamed.org
207.215.49.2	A	ns1.hydraflow.net
207.215.49.2	A	ns1.hydraflowpma.com
207.215.49.2	A	ns1.hydraflowusa.com
207.215.60.4	A	mail1.walden-media.com
207.215.60.5	A	mail.walden-media.com
207.215.61.130	A	ns1.microtek.com
207.215.61.133	A	mr3.microtek.com
207.215.61.233	A	mr1.microtek.com
207.215.61.233	A	postoffice.microtek.com