Robtex

Up: 207.42.0.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 207.42.0.0/21
Down right: 207.42.8.0/21

IP	Type	Hostname
207.42.1.1	PTR	207.42.0.1.m5net.com
207.42.1.168	PTR	abn.nettheory.com
207.42.1.250	PTR	mail.oscargruss.com
207.42.3.1	PTR	207.42.3.1.m5net.com
207.42.3.3	PTR	207.42.3.3.m5net.com
207.42.3.92	A	www.gintypecson.com
207.42.3.92	A	gintypecson.com
207.42.3.120	PTR	mail.getcp.com
207.42.3.120	A	smtp.gintypecson.com
207.42.3.122	PTR	smtp.getcp.com
207.42.3.122	A	mail.gintypecson.com
207.42.5.3	PTR	mail.sherry-lehmann.com