Robtex

Up: 216.244.0.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 216.244.16.0/21
Down right: 216.244.24.0/21

IP	Type	Hostname
216.244.16.30	A	user-3cf840u.dsl.mindspring.com
216.244.16.71	A	user-3cf8427.dsl.mindspring.com
216.244.16.76	A	user-3cf842c.dsl.mindspring.com
216.244.16.119	A	user-3cf843n.dsl.mindspring.com
216.244.16.129	A+PTR	user-3cf8441.dsl.mindspring.com
216.244.17.19	A+PTR	user-3cf848j.dsl.mindspring.com
216.244.17.59	A	user-3cf849r.dsl.mindspring.com
216.244.18.2	A+PTR	user-3cf84g2.dsl.mindspring.com
216.244.18.4	A	user-3cf84g4.dsl.mindspring.com
216.244.18.38	A	user-3cf84h6.dsl.mindspring.com
216.244.18.85	A	user-3cf84il.dsl.mindspring.com
216.244.18.110	A	user-3cf84je.dsl.mindspring.com
216.244.18.133	A	user-3cf84k5.dsl.mindspring.com
216.244.18.165	A	user-3cf84l5.dsl.mindspring.com
216.244.18.207	A	user-3cf84mf.dsl.mindspring.com
216.244.18.254	A	user-3cf84nu.dsl.mindspring.com
216.244.19.106	A	user-3cf84ra.dsl.mindspring.com
216.244.19.228	A	user-3cf84v4.dsl.mindspring.com
216.244.19.245	A	user-3cf84vl.dsl.mindspring.com
216.244.20.38	A	user-3cf8516.dsl.mindspring.com
216.244.20.157	A	user-3cf854t.dsl.mindspring.com
216.244.20.205	A	user-3cf856d.dsl.mindspring.com
216.244.21.16	A+PTR	user-3cf858g.dsl.mindspring.com
216.244.21.56	A	user-3cf859o.dsl.mindspring.com
216.244.21.60	A	user-3cf859s.dsl.mindspring.com
216.244.21.106	A	user-3cf85ba.dsl.mindspring.com
216.244.22.123	A	user-3cf85jr.dsl.mindspring.com
216.244.22.165	A	user-3cf85l5.dsl.mindspring.com
216.244.22.173	A	user-3cf85ld.dsl.mindspring.com
216.244.22.206	A	user-3cf85me.dsl.mindspring.com
216.244.22.253	A	user-3cf85nt.dsl.mindspring.com
216.244.23.57	A	user-3cf85pp.dsl.mindspring.com
216.244.23.139	A	user-3cf85sb.dsl.mindspring.com
216.244.23.162	A+PTR	user-3cf85t2.dsl.mindspring.com
216.244.23.193	A+PTR	user-3cf85u1.dsl.mindspring.com
216.244.24.32	A+PTR	user-3cf8610.dsl.mindspring.com
216.244.24.50	A+PTR	user-3cf861i.dsl.mindspring.com
216.244.24.51	A+PTR	user-3cf861j.dsl.mindspring.com
216.244.24.128	A+PTR	user-3cf8640.dsl.mindspring.com
216.244.24.191	A	user-3cf865v.dsl.mindspring.com
216.244.24.243	A+PTR	user-3cf867j.dsl.mindspring.com
216.244.25.43	A	user-3cf869b.dsl.mindspring.com
216.244.25.178	A	user-3cf86di.dsl.mindspring.com
216.244.25.213	A	user-3cf86el.dsl.mindspring.com
216.244.25.246	A	user-3cf86fm.dsl.mindspring.com
216.244.26.42	A	user-3cf86ha.dsl.mindspring.com
216.244.26.123	A	user-3cf86jr.dsl.mindspring.com
216.244.26.135	A	user-3cf86k7.dsl.mindspring.com
216.244.26.146	A+PTR	user-3cf86ki.dsl.mindspring.com
216.244.27.11	A	user-3cf86ob.dsl.mindspring.com
216.244.27.102	A	user-3cf86r6.dsl.mindspring.com
216.244.27.247	A	user-3cf86vn.dsl.mindspring.com
216.244.28.10	A	user-3cf870a.dsl.mindspring.com
216.244.28.20	A	user-3cf870k.dsl.mindspring.com
216.244.28.79	A	user-3cf872f.dsl.mindspring.com
216.244.28.189	A	user-3cf875t.dsl.mindspring.com
216.244.28.205	A	user-3cf876d.dsl.mindspring.com
216.244.29.44	A	user-3cf879c.dsl.mindspring.com
216.244.29.108	A	user-3cf87bc.dsl.mindspring.com
216.244.29.177	A+PTR	user-3cf87dh.dsl.mindspring.com
216.244.29.188	A	user-3cf87ds.dsl.mindspring.com
216.244.29.201	A	user-3cf87e9.dsl.mindspring.com
216.244.30.36	A	user-3cf87h4.dsl.mindspring.com
216.244.30.152	A	user-3cf87ko.dsl.mindspring.com
216.244.30.183	A	user-3cf87ln.dsl.mindspring.com
216.244.30.199	A	user-3cf87m7.dsl.mindspring.com
216.244.30.240	A+PTR	user-3cf87ng.dsl.mindspring.com
216.244.31.100	A	user-3cf87r4.dsl.mindspring.com
216.244.31.155	A	user-3cf87sr.dsl.mindspring.com
216.244.31.242	A+PTR	user-3cf87vi.dsl.mindspring.com