Robtex

Up: 193.128.0.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 193.128.32.0/20
Down right: 193.128.48.0/20

IP	Type	Hostname
193.128.37.101	A+PTR	mtm01-2.streamshield.baesystems.com
193.128.37.125	A+PTR	mail2.streamshield.baesystems.com
193.128.37.126	PTR	ns1.mobileprotect.baesystems.com.37.128.193.in-addr.arpa
193.128.37.126	A	ns1.streamshield.baesystems.com
193.128.41.33	PTR	cam-cr2.pipex.net
193.128.41.41	PTR	doc-gw8.pipex.net
193.128.41.65	PTR	cam-cr2.pipex.net
193.128.41.138	PTR	gigabitethernet2-0.gw3.uk5.web.wcom.net
193.128.41.161	PTR	cam-cr2.pipex.net
193.128.41.197	PTR	pos3-3.gw9.lnd10.alter.net
193.128.41.198	PTR	pos0-0-0.dr1.lnd9.alter.net
193.128.41.201	PTR	pos3-0.gw10.lnd10.alter.net
193.128.42.0	PTR	pipex.net
193.128.45.0	PTR	pipex.net
193.128.47.0	PTR	pipex.net
193.128.60.1	A+PTR	caf.cafcash.org
193.128.60.209	PTR	zephyr.corusrailconsultancy.com
193.128.61.93	A	newcastle-airport.co.uk
193.128.61.145	PTR	mail.cdtltd.co.uk