Robtex

Up: 66.72.160.0/20
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Down left: 66.72.160.0/22
Down right: 66.72.164.0/22

IP	Type	Hostname
66.72.163.134	A	mail.stumpfconstruction.com
66.72.163.225	PTR	adsl-66-72-163-225.dsl.sfldmi.ameritech.net
66.72.164.154	PTR	66-72-164-154.columbianalaw.com
66.72.164.193	PTR	66-72-164-193.spirex.com