Robtex

Up: 41.75.80.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 41.75.80.0/25
Down right: 41.75.80.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
41.75.80.62	A+PTR	if-01.ng-pop-pe-01.ngn.mainonecable.com
41.75.80.82	A+PTR	ns1.mainonecable.com
41.75.80.83	A+PTR	ns2.mainonecable.com
41.75.80.86	A	ns3.mainonecable.com
41.75.80.86	A	speed2.mainonecable.com
41.75.80.91	A+PTR	ng-cls-iop-sc-02.ngn.mainonecable.com
41.75.80.92	A+PTR	mail2.mainonecable.com
41.75.80.92	PTR	ng-cls-iop-sc-03.ngn.mainonecable.com
41.75.80.93	PTR	mail.mdx-i.com
41.75.80.93	PTR	safeh.mdx-i.com
41.75.80.93	A	mail2.mainonecable.com