Robtex

Up: 216.228.68.0/22
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Down left: 216.228.68.0/24
Down right: 216.228.69.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.228.68.0	PTR	ntwk-216-228-68-0.ispdone.com
216.228.68.255	PTR	bdcst-216-228-68-255.ispdone.com
216.228.69.0	PTR	ntwk-216-228-69-0.ispdone.com
216.228.69.156	A+PTR	zcrewbcs.com
216.228.69.156	A	mail.zemanek-bcs.com
216.228.69.156	A	zemanekbcs.com
216.228.69.250	A	morgancc.com
216.228.69.250	A	dissrr.com