Robtex

Up: 66.114.232.0/21
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Down left: 66.114.232.0/23
Down right: 66.114.234.0/23

IP	Type	Hostname
66.114.233.12	A	mail2.dercodiamonds.com
66.114.233.74	PTR	relay.bpmllp.com
66.114.234.140	PTR	owa.propack.com
66.114.234.155	PTR	mail.nooksack-nsn.gov
66.114.234.226	A+PTR	hermes.seattlesystems.com
66.114.234.240	PTR	66-114-234-240.focaldata.net
66.114.234.240	A	exchange3.usmc.com