Robtex

Up: 213.144.234.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 213.144.234.0/25
Down right: 213.144.234.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
213.144.234.0	PTR	rt234bb144-213-0.routit.net
213.144.234.34	PTR	rt234bb144-213-31.routit.net
213.144.234.35	A	webmail.technica.nl
213.144.234.102	A	www.graafschap-og.nl
213.144.234.102	A	www.rabomakelaars.nl
213.144.234.129	A	access.routit.net
213.144.234.130	PTR	access.routit.net
213.144.234.141	PTR	coresw-tc2.routit.net
213.144.234.153	PTR	cms-tc1.routit.net
213.144.234.184	A+PTR	bbned-tc1.routit.net
213.144.234.243	A	routit.com
213.144.234.243	A	routit.de
213.144.234.243	A	247services.nl
213.144.234.255	PTR	rt234bb144-213-255.routit.net