Robtex

Up: 192.33.14.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 192.33.14.0/25
Down right: 192.33.14.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
192.33.14.1	A+PTR	gw.b.nstld.com
192.33.14.9	A+PTR	vrrp.b.nstld.com
192.33.14.10	A+PTR	igw1.b.nstld.com
192.33.14.11	A+PTR	igw2.b.nstld.com
192.33.14.30	A+PTR	b.gtld-servers.net
192.33.14.30	A	hsecservices.com
192.33.14.30	A	seikan.ca
192.33.14.31	A+PTR	b2.nstld.com
192.33.14.32	A+PTR	b3.nstld.com
192.33.14.32	A+PTR	ginseng.arin.net
192.33.14.33	PTR	b4.nstld.com
192.33.14.34	A+PTR	b5.nstld.com