Robtex

Up: 83.138.0.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 83.138.0.0/23
Down right: 83.138.2.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
83.138.0.70	A+PTR	sgn22.siemens.nl
83.138.0.70	A	dmzmta.siemens.nl
83.138.0.73	A+PTR	aurora.customer-services.nl
83.138.0.90	A+PTR	sgn4.siemens.nl
83.138.0.90	A	dmzmta.siemens.nl
83.138.0.93	A+PTR	borealis.customer-services.nl
83.138.0.107	A	bbi.smc.siemens.nl
83.138.0.112	A	bmwb.net
83.138.0.112	A	vrhaaglanden.net
83.138.1.4	A+PTR	resept.siemens.nl
83.138.1.65	A+PTR	web.bmwb.net
83.138.1.68	A	box.bmwb.net
83.138.1.74	A	webmail.vrh.nl
83.138.2.108	A+PTR	dvis.noord-holland.nl
83.138.2.124	A	securera.noord-holland.nl
83.138.2.129	A+PTR	risicokaart.noord-holland.nl
83.138.2.129	PTR	secure1.noord-holland.nl
83.138.2.129	A+PTR	www.noord-holland.nl
83.138.2.134	PTR	mmd.noord-holland.nl
83.138.2.140	A	83-138-2-140.noord-holland.nl
83.138.2.143	PTR	ftp.noord-holland.nl
83.138.2.143	PTR	secure.noord-holland.nl
83.138.2.143	A+PTR	website.noord-holland.nl
83.138.2.147	A+PTR	access.noord-holland.nl
83.138.2.152	A	geopnh.noord-holland.nl