Robtex

Up: 216.244.32.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 216.244.32.0/22
Down right: 216.244.36.0/22

IP	Type	Hostname
216.244.32.65	A+PTR	user-3cf8821.dsl.mindspring.com
216.244.32.87	A	user-3cf882n.dsl.mindspring.com
216.244.32.124	A	user-3cf883s.dsl.mindspring.com
216.244.32.158	A	user-3cf884u.dsl.mindspring.com
216.244.32.183	A	user-3cf885n.dsl.mindspring.com
216.244.32.228	A	user-3cf8874.dsl.mindspring.com
216.244.32.241	A	user-3cf887h.dsl.mindspring.com
216.244.33.56	A+PTR	user-3cf889o.dsl.mindspring.com
216.244.33.131	A+PTR	user-3cf88c3.dsl.mindspring.com
216.244.33.207	A	user-3cf88ef.dsl.mindspring.com
216.244.33.211	A+PTR	user-3cf88ej.dsl.mindspring.com
216.244.34.3	A+PTR	user-3cf88g3.dsl.mindspring.com
216.244.34.20	A	user-3cf88gk.dsl.mindspring.com
216.244.34.34	A	user-3cf88h2.dsl.mindspring.com
216.244.34.68	A	user-3cf88i4.dsl.mindspring.com
216.244.34.94	A	user-3cf88iu.dsl.mindspring.com
216.244.34.108	A	user-3cf88jc.dsl.mindspring.com
216.244.34.129	A	user-3cf88k1.dsl.mindspring.com
216.244.34.140	A	user-3cf88kc.dsl.mindspring.com
216.244.34.208	A+PTR	user-3cf88mg.dsl.mindspring.com
216.244.34.217	A	user-3cf88mp.dsl.mindspring.com
216.244.34.222	A	user-3cf88mu.dsl.mindspring.com
216.244.35.19	A	user-3cf88oj.dsl.mindspring.com
216.244.35.113	A+PTR	user-3cf88rh.dsl.mindspring.com
216.244.36.244	A	user-3cf897k.dsl.mindspring.com
216.244.37.35	A+PTR	user-3cf8993.dsl.mindspring.com
216.244.37.179	A+PTR	user-3cf89dj.dsl.mindspring.com
216.244.37.181	A	user-3cf89dl.dsl.mindspring.com
216.244.37.182	A	user-3cf89dm.dsl.mindspring.com
216.244.37.219	A	user-3cf89er.dsl.mindspring.com
216.244.38.24	A+PTR	user-3cf89go.dsl.mindspring.com
216.244.38.200	A+PTR	user-3cf89m8.dsl.mindspring.com
216.244.38.221	A	user-3cf89mt.dsl.mindspring.com
216.244.39.185	PTR	user-3cf89tp.dsl.mindspring.com
216.244.39.197	A	user-3cf89u5.dsl.mindspring.com
216.244.39.199	A	user-3cf89u7.dsl.mindspring.com