Robtex

Up: 216.112.242.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 216.112.243.0/25
Down right: 216.112.243.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.112.243.14	PTR	216.112.243.14.ptr.us.xo.net
216.112.243.14	A	hmail2.rwsbroker.com
216.112.243.14	A	hmail2.munibrokers.com
216.112.243.89	A+PTR	216.112.243.89.ptr.us.xo.net
216.112.243.124	PTR	216.112.243.124.ptr.us.xo.net
216.112.243.133	A+PTR	216.112.243.133.ptr.us.xo.net
216.112.243.146	A	mail1.holidayhomerental.ie
216.112.243.180	A+PTR	216.112.243.180.ptr.us.xo.net
216.112.243.226	A+PTR	216.112.243.226.ptr.us.xo.net
216.112.243.237	A+PTR	216.112.243.237.ptr.us.xo.net
216.112.243.239	A+PTR	216.112.243.239.ptr.us.xo.net
216.112.243.239	A	egroups.eyespacemd.com
216.112.243.240	PTR	216.112.243.240.ptr.us.xo.net
216.112.243.240	A	eyespacemd.net
216.112.243.240	A	eyespacemd.com
216.112.243.243	A	testegroups.eval.org
216.112.243.243	A	testegroups.iaap-hq.org