Robtex

Up: 83.137.148.0/23
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Down left: 83.137.148.0/25
Down right: 83.137.148.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
83.137.148.0	PTR	nw.r1.137-148.duocast.net
83.137.148.2	A+PTR	ipt-as31731.duocast.net
83.137.148.34	A	mail.qwbl.it
83.137.148.34	A	mail.qwbl.dk
83.137.148.34	A	qwbl.it
83.137.148.66	A+PTR	stenn.duocast.net
83.137.148.91	PTR	ipt-as39244.duocast.net
83.137.148.98	A+PTR	mail.prominentpeople.nl
83.137.148.122	PTR	mx2.netwerkplan.nl
83.137.148.122	A	mx2.tourcompany.nl
83.137.148.122	A	mx2.bedrijfsreizen.nl
83.137.148.130	PTR	mx1.netwerkplan.nl
83.137.148.130	A	mx1.tourcompany.nl
83.137.148.130	A	mx1.ashfordformula.be
83.137.148.133	A	mail.hoekstra-heerenveen.nl
83.137.148.150	A+PTR	mx1.eno.nl
83.137.148.170	PTR	vc3.visser-communicatie.nl
83.137.148.242	PTR	duocast.tcn.gn.netnova.nl
83.137.148.242	A	gateway.netnova.nl