Robtex

Up: 192.5.6.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 192.5.6.0/25
Down right: 192.5.6.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
192.5.6.1	A	gw.a.nstld.com
192.5.6.9	A	vrrp.a.nstld.com
192.5.6.10	A	igw1.a.nstld.com
192.5.6.11	A	igw2.a.nstld.com
192.5.6.30	PTR	a.gtld-servers.net
192.5.6.30	A	*.are-we-having-fun-yet-jamom.htmles-backstabbing-liar-gilliland.dfcloan.com
192.5.6.30	A	*.com.htmlu-try-to-be-friends-robert-backstabbing-liar-st.htmlanley.dfcloan.com
192.5.6.31	PTR	a2.nstld.com
192.5.6.31	A	a2.gov-servers.net
192.5.6.32	PTR	a3.nstld.com
192.5.6.32	A+PTR	chia.arin.net
192.5.6.33	PTR	a4.nstld.com
192.5.6.33	A	srv1-parkhyattmarrakesh.ma
192.5.6.33	A	srv1-mag-lite.ma
192.5.6.34	PTR	ns1.dnsmanaged.com
192.5.6.35	PTR	a6.nstld.com
192.5.6.36	PTR	a.edu-servers.net
192.5.6.36	A	a7.nstld.com
192.5.6.37	PTR	a8.nstld.com
192.5.6.38	PTR	a9.nstld.com
192.5.6.39	A+PTR	a10.nstld.com