Robtex

Up: 68.23.192.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 68.23.196.0/23
Down right: 68.23.198.0/23

IP	Type	Hostname
68.23.198.86	A	smgmail.smgcomputing.com
68.23.198.86	A	adsl-68-23-198-86.dsl.milwwi.ameritech.net
68.23.198.151	A+PTR	adsl-68-23-198-151.dsl.milwwi.ameritech.net
68.23.198.216	A+PTR	adsl-68-23-198-216.dsl.milwwi.ameritech.net
68.23.198.227	A+PTR	adsl-68-23-198-227.dsl.milwwi.ameritech.net