Robtex

Up: 3.5.128.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 3.5.160.0/20
Down right: 3.5.176.0/20

IP	Type	Hostname
3.5.163.195	PTR	n003-000-000-000.static.ge.com
3.5.168.192	PTR	n003-000-000-000.static.ge.com
3.5.168.193	PTR	n003-000-000-000.static.ge.com
3.5.171.3	PTR	n003-000-000-000.static.ge.com
3.5.181.131	PTR	n003-000-000-000.static.ge.com
3.5.181.195	PTR	n003-000-000-000.static.ge.com