Robtex

Up: 192.158.242.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 192.158.243.0/25
Down right: 192.158.243.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
192.158.243.3	A+PTR	ar3-243-158-192.11179.rev.aryaka.com
192.158.243.3	A	nsb1.aads1.net
192.158.243.3	A	nsb1.aryaka.net
192.158.243.11	A+PTR	ar11-243-158-192.11179.rev.aryaka.com
192.158.243.11	A	nsb1.aads-cng.net
192.158.243.11	A	nsb1.aads-cn.net