Robtex

Up: 64.113.64.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 64.113.64.0/20
Down right: 64.113.80.0/20

IP	Type	Hostname
64.113.64.0	PTR	network-64-113-64-0--24.tele.iastate.edu
64.113.65.228	A+PTR	codcacipad04.design.iastate.edu
64.113.70.255	A	broadcast-64-113-70-0.tele.iastate.edu
64.113.71.252	A+PTR	routera-64-113-71-0.tele.iastate.edu
64.113.71.253	A+PTR	routerb-64-113-71-0.tele.iastate.edu
64.113.76.252	A	routera-64-113-76-0.iastate.edu
64.113.77.252	A+PTR	routera-64-113-77-0.tele.iastate.edu
64.113.80.254	A	router-64-113-80-0.iastate.edu
64.113.80.255	A	broadcast-64-113-80-0.iastate.edu
64.113.83.252	A	routera-64-113-83-0.iastate.edu
64.113.83.254	A+PTR	router-64-113-83-0.tele.iastate.edu
64.113.84.253	A+PTR	routerb-64-113-84-0.tele.iastate.edu
64.113.86.252	A	routera-64-113-86-0.iastate.edu
64.113.86.253	PTR	routerb-64-113-86-0.tele.iastate.edu
64.113.86.253	A	routerb-64-113-86-0.iastate.edu
64.113.88.252	A+PTR	routera-64-113-88-0.tele.iastate.edu
64.113.88.253	A+PTR	routerb-64-113-88-0.tele.iastate.edu
64.113.90.252	A+PTR	routera-64-113-90-0.iastate.edu
64.113.90.253	A	routerb-64-113-90-0.iastate.edu
64.113.91.252	A+PTR	routera-64-113-91-0.tele.iastate.edu
64.113.91.254	A+PTR	router-64-113-91-0.tele.iastate.edu
64.113.94.252	A+PTR	routera-64-113-94-0.tele.iastate.edu