Robtex

Up: 216.24.216.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 216.24.216.0/24
Down right: 216.24.217.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.24.217.135	PTR	nycexsvr.glch.com
216.24.217.135	A	nycexsvr.bpsg.com
216.24.217.136	PTR	albexns2.bpsg.com
216.24.217.136	A	mail.bpsg.com
216.24.217.136	A	www.bpsg.com
216.24.217.145	PTR	vpn-nyc.bpsg.com
216.24.217.145	A	www.gleacher.com
216.24.217.152	A	smtp1.rangemark.com
216.24.217.152	A	mail.rangemark.com
216.24.217.251	PTR	external-unallocated-251.glch.com