Robtex

Up: 64.249.240.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 64.249.244.0/23
Down right: 64.249.246.0/23

IP	Type	Hostname
64.249.244.0	A+PTR	64-249-244-0.client.dsl.net
64.249.244.8	A+PTR	64-249-244-8.client.dsl.net
64.249.244.10	A+PTR	64-249-244-10.client.dsl.net
64.249.244.16	A+PTR	64-249-244-16.client.dsl.net
64.249.244.18	A+PTR	64-249-244-18.client.dsl.net
64.249.244.19	A+PTR	64-249-244-19.client.dsl.net
64.249.244.23	A+PTR	64-249-244-23.client.dsl.net
64.249.244.28	A+PTR	64-249-244-28.client.dsl.net
64.249.244.29	A+PTR	64-249-244-29.client.dsl.net
64.249.244.30	A+PTR	64-249-244-30.client.dsl.net
64.249.244.33	A+PTR	64-249-244-33.client.dsl.net
64.249.244.38	A+PTR	64-249-244-38.client.dsl.net
64.249.244.41	A+PTR	64-249-244-41.client.dsl.net
64.249.244.42	A+PTR	64-249-244-42.client.dsl.net
64.249.244.47	A+PTR	64-249-244-47.client.dsl.net
64.249.244.55	A+PTR	64-249-244-55.client.dsl.net
64.249.244.58	A+PTR	64-249-244-58.client.dsl.net
64.249.244.59	A+PTR	64-249-244-59.client.dsl.net
64.249.244.69	A+PTR	64-249-244-69.client.dsl.net
64.249.244.74	A+PTR	64-249-244-74.client.dsl.net
64.249.244.79	A+PTR	64-249-244-79.client.dsl.net
64.249.244.86	A+PTR	64-249-244-86.client.dsl.net
64.249.244.87	A+PTR	64-249-244-87.client.dsl.net
64.249.244.97	A+PTR	64-249-244-97.client.dsl.net
64.249.244.102	A+PTR	64-249-244-102.client.dsl.net
64.249.244.108	A+PTR	64-249-244-108.client.dsl.net
64.249.244.111	A+PTR	64-249-244-111.client.dsl.net
64.249.244.115	A+PTR	64-249-244-115.client.dsl.net
64.249.244.118	A+PTR	64-249-244-118.client.dsl.net
64.249.244.119	A+PTR	64-249-244-119.client.dsl.net
64.249.244.122	A+PTR	64-249-244-122.client.dsl.net
64.249.244.128	A+PTR	64-249-244-128.client.dsl.net
64.249.244.140	A+PTR	64-249-244-140.client.dsl.net
64.249.244.141	A+PTR	64-249-244-141.client.dsl.net
64.249.244.146	A+PTR	64-249-244-146.client.dsl.net
64.249.244.148	A+PTR	64-249-244-148.client.dsl.net
64.249.244.155	A+PTR	64-249-244-155.client.dsl.net
64.249.244.156	A+PTR	64-249-244-156.client.dsl.net
64.249.244.157	A+PTR	64-249-244-157.client.dsl.net
64.249.244.162	A+PTR	64-249-244-162.client.dsl.net
64.249.244.163	A+PTR	64-249-244-163.client.dsl.net
64.249.244.167	A+PTR	64-249-244-167.client.dsl.net
64.249.244.168	A+PTR	64-249-244-168.client.dsl.net
64.249.244.169	A+PTR	64-249-244-169.client.dsl.net
64.249.244.171	A+PTR	64-249-244-171.client.dsl.net
64.249.244.173	A+PTR	64-249-244-173.client.dsl.net
64.249.244.180	A+PTR	64-249-244-180.client.dsl.net
64.249.244.181	A+PTR	64-249-244-181.client.dsl.net
64.249.244.186	A+PTR	64-249-244-186.client.dsl.net
64.249.244.187	A+PTR	64-249-244-187.client.dsl.net
64.249.244.188	A+PTR	64-249-244-188.client.dsl.net
64.249.244.195	A+PTR	64-249-244-195.client.dsl.net
64.249.244.201	A+PTR	64-249-244-201.client.dsl.net
64.249.244.202	A+PTR	64-249-244-202.client.dsl.net
64.249.244.204	A+PTR	64-249-244-204.client.dsl.net
64.249.244.205	A+PTR	64-249-244-205.client.dsl.net
64.249.244.212	A+PTR	64-249-244-212.client.dsl.net
64.249.244.214	A+PTR	64-249-244-214.client.dsl.net
64.249.244.218	A+PTR	64-249-244-218.client.dsl.net
64.249.244.220	A+PTR	64-249-244-220.client.dsl.net
64.249.244.222	A+PTR	64-249-244-222.client.dsl.net
64.249.244.223	A+PTR	64-249-244-223.client.dsl.net
64.249.244.227	A+PTR	64-249-244-227.client.dsl.net
64.249.244.228	A+PTR	64-249-244-228.client.dsl.net
64.249.244.233	A+PTR	64-249-244-233.client.dsl.net
64.249.244.235	A+PTR	64-249-244-235.client.dsl.net
64.249.244.236	A+PTR	64-249-244-236.client.dsl.net
64.249.244.237	A+PTR	64-249-244-237.client.dsl.net
64.249.244.240	A+PTR	64-249-244-240.client.dsl.net
64.249.244.243	A+PTR	64-249-244-243.client.dsl.net
64.249.244.247	A+PTR	64-249-244-247.client.dsl.net
64.249.244.251	A+PTR	64-249-244-251.client.dsl.net
64.249.244.252	A+PTR	64-249-244-252.client.dsl.net
64.249.244.254	A+PTR	64-249-244-254.client.dsl.net