Robtex

Up: 64.109.8.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 64.109.12.0/23
Down right: 64.109.14.0/23

IP	Type	Hostname
64.109.12.126	PTR	ppp-64-109-12-126.dialup.peoril.ameritech.net
64.109.12.221	A+PTR	ppp-64-109-12-221.dialup.peoril.ameritech.net
64.109.14.0	A	adsl-64-109-14-0.dsl.peoril.ameritech.net
64.109.15.19	A+PTR	adsl-64-109-15-19.dsl.peoril.ameritech.net
64.109.15.152	A	adsl-64-109-15-152.dsl.peoril.ameritech.net
64.109.15.226	A+PTR	adsl-64-109-15-226.dsl.peoril.ameritech.net