Robtex

Up: 64.172.128.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 64.172.128.0/22
Down right: 64.172.132.0/22

IP	Type	Hostname
64.172.128.0	PTR	adsl-64-172-128-0.dsl.sktn01.pacbell.net
64.172.128.3	PTR	adsl-64-172-128-3.dsl.sktn01.pacbell.net
64.172.128.8	PTR	adsl-64-172-128-8.dsl.sktn01.pacbell.net
64.172.128.16	PTR	adsl-64-172-128-16.dsl.sktn01.pacbell.net
64.172.128.17	PTR	adsl-64-172-128-17.dsl.sktn01.pacbell.net
64.172.128.25	PTR	adsl-64-172-128-25.dsl.sktn01.pacbell.net
64.172.128.27	PTR	adsl-64-172-128-27.dsl.sktn01.pacbell.net
64.172.128.31	A	adsl-64-172-128-31.dsl.sktn01.pacbell.net
64.172.128.35	PTR	adsl-64-172-128-35.dsl.sktn01.pacbell.net
64.172.128.42	PTR	adsl-64-172-128-42.dsl.sktn01.pacbell.net
64.172.128.50	PTR	adsl-64-172-128-50.dsl.sktn01.pacbell.net
64.172.128.51	PTR	adsl-64-172-128-51.dsl.sktn01.pacbell.net
64.172.128.56	PTR	adsl-64-172-128-56.dsl.sktn01.pacbell.net
64.172.128.59	PTR	adsl-64-172-128-59.dsl.sktn01.pacbell.net
64.172.128.67	PTR	adsl-64-172-128-67.dsl.sktn01.pacbell.net
64.172.128.81	PTR	adsl-64-172-128-81.dsl.sktn01.pacbell.net
64.172.128.88	PTR	adsl-64-172-128-88.dsl.sktn01.pacbell.net
64.172.128.89	PTR	adsl-64-172-128-89.dsl.sktn01.pacbell.net
64.172.128.90	PTR	adsl-64-172-128-90.dsl.sktn01.pacbell.net
64.172.128.91	PTR	adsl-64-172-128-91.dsl.sktn01.pacbell.net
64.172.128.97	PTR	adsl-64-172-128-97.dsl.sktn01.pacbell.net
64.172.128.104	PTR	adsl-64-172-128-104.dsl.sktn01.pacbell.net
64.172.128.112	PTR	adsl-64-172-128-112.dsl.sktn01.pacbell.net
64.172.128.123	PTR	adsl-64-172-128-123.dsl.sktn01.pacbell.net
64.172.128.128	PTR	adsl-64-172-128-128.dsl.sktn01.pacbell.net
64.172.128.132	A	adsl-64-172-128-132.dsl.sktn01.pacbell.net
64.172.128.137	PTR	adsl-64-172-128-137.dsl.sktn01.pacbell.net
64.172.128.152	PTR	adsl-64-172-128-152.dsl.sktn01.pacbell.net
64.172.128.153	PTR	adsl-64-172-128-153.dsl.sktn01.pacbell.net
64.172.128.160	PTR	adsl-64-172-128-160.dsl.sktn01.pacbell.net
64.172.128.162	PTR	adsl-64-172-128-162.dsl.sktn01.pacbell.net
64.172.128.163	PTR	adsl-64-172-128-163.dsl.sktn01.pacbell.net
64.172.128.169	PTR	adsl-64-172-128-169.dsl.sktn01.pacbell.net
64.172.128.194	PTR	adsl-64-172-128-194.dsl.sktn01.pacbell.net
64.172.128.201	PTR	adsl-64-172-128-201.dsl.sktn01.pacbell.net
64.172.128.224	PTR	adsl-64-172-128-224.dsl.sktn01.pacbell.net
64.172.128.225	PTR	adsl-64-172-128-225.dsl.sktn01.pacbell.net
64.172.128.235	PTR	adsl-64-172-128-235.dsl.sktn01.pacbell.net
64.172.128.241	PTR	adsl-64-172-128-241.dsl.sktn01.pacbell.net
64.172.128.242	PTR	adsl-64-172-128-242.dsl.sktn01.pacbell.net