Robtex

Up: 208.92.240.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 208.92.240.0/22
Down right: 208.92.244.0/22

IP	Type	Hostname
208.92.240.68	A+PTR	mx2.deerfield.edu
208.92.240.75	A	barracuda.deerfield.edu
208.92.240.83	A+PTR	mx1.deerfield.edu
208.92.240.101	A+PTR	ns1.deerfield.edu
208.92.240.102	A+PTR	ns2.deerfield.edu
208.92.243.63	A	dainfo.deerfield.edu
208.92.243.66	A	mx2.deerfield.edu
208.92.243.66	A	mail.deerfield.edu
208.92.243.67	A+PTR	mail.deerfield.edu
208.92.243.68	A	ns4.deerfield.edu
208.92.243.75	A	barracuda.deerfield.edu
208.92.243.103	A+PTR	ns4.deerfield.edu
208.92.243.105	A+PTR	ns1.deerfield.edu