Robtex

Up: 37.0.88.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 37.0.88.0/25
Down right: 37.0.88.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
37.0.88.1	PTR	rt88bb0-37-1.routit.net
37.0.88.4	PTR	rt88bb0-37-4.routit.net
37.0.88.5	PTR	rt88bb0-37-5.routit.net
37.0.88.5	A	eu-proxy.startpage.com
37.0.88.8	PTR	rt88bb0-37-8.routit.net
37.0.88.9	PTR	rt88bb0-37-9.routit.net
37.0.88.9	A	eu-proxy.startpage.com
37.0.88.13	PTR	rt88bb0-37-13.routit.net
37.0.88.13	A	eu-proxy.startpage.com
37.0.88.14	PTR	rt88bb0-37-14.routit.net
37.0.88.14	A	ixquick.info
37.0.88.16	PTR	rt88bb0-37-16.routit.net
37.0.88.16	A	ixquick.eu
37.0.88.16	A	eu.ixquick.eu
37.0.88.17	PTR	rt88bb0-37-17.routit.net
37.0.88.17	A	eu-proxy.startpage.com
37.0.88.20	PTR	rt88bb0-37-20.routit.net
37.0.88.20	A	ixquick.eu
37.0.88.21	PTR	rt88bb0-37-21.routit.net
37.0.88.21	A	eu-proxy.startpage.com
37.0.88.24	PTR	rt88bb0-37-24.routit.net
37.0.88.25	PTR	rt88bb0-37-25.routit.net
37.0.88.25	A	eu-proxy.startpage.com
37.0.88.26	PTR	rt88bb0-37-26.routit.net
37.0.88.28	PTR	rt88bb0-37-28.routit.net
37.0.88.28	A	s7-eu5.startpage.com
37.0.88.29	PTR	rt88bb0-37-29.routit.net
37.0.88.29	A	eu-proxy.startpage.com
37.0.88.30	PTR	rt88bb0-37-30.routit.net
37.0.88.30	A	eu.ixquick-proxy.com
37.0.88.32	PTR	rt88bb0-37-32.routit.net
37.0.88.32	A	ixquick.eu
37.0.88.32	A	eu.ixquick.eu
37.0.88.33	PTR	rt88bb0-37-33.routit.net
37.0.88.33	A	eu-proxy.startpage.com
37.0.88.33	A	proxy.startpage.com
37.0.88.35	PTR	rt88bb0-37-35.routit.net
37.0.88.35	A	www.ixquick.nl
37.0.88.36	PTR	rt88bb0-37-36.routit.net
37.0.88.36	A	ixquick.eu
37.0.88.36	A	eu.ixquick.eu
37.0.88.37	PTR	rt88bb0-37-37.routit.net
37.0.88.37	A	eu-proxy.startpage.com
37.0.88.38	PTR	rt88bb0-37-38.routit.net
37.0.88.38	A	eu.ixquick-proxy.com
37.0.88.40	PTR	rt88bb0-37-40.routit.net
37.0.88.41	PTR	rt88bb0-37-41.routit.net
37.0.88.41	A	eu-proxy.startpage.com
37.0.88.41	A	proxy.startpage.com
37.0.88.42	PTR	rt88bb0-37-42.routit.net
37.0.88.44	PTR	rt88bb0-37-44.routit.net
37.0.88.44	A	eu.ixquick.eu
37.0.88.45	PTR	rt88bb0-37-45.routit.net
37.0.88.45	A	eu-proxy.startpage.com
37.0.88.45	A	s8-eu5.startpage.com
37.0.88.47	PTR	rt88bb0-37-47.routit.net
37.0.88.47	A	www.ixquick-proxy.com
37.0.88.48	PTR	rt88bb0-37-48.routit.net
37.0.88.49	PTR	rt88bb0-37-49.routit.net
37.0.88.49	A	eu-proxy.startpage.com
37.0.88.50	PTR	rt88bb0-37-50.routit.net
37.0.88.50	A	eu-proxy.startpage.com
37.0.88.52	PTR	rt88bb0-37-52.routit.net
37.0.88.53	PTR	rt88bb0-37-53.routit.net
37.0.88.53	A	eu-proxy.startpage.com
37.0.88.53	A	proxy.startpage.com
37.0.88.59	A+PTR	mail.startpage.com
37.0.88.60	A	dontbubble.me
37.0.88.62	PTR	rt88bb0-37-62.routit.net
37.0.88.62	A	blog.startpage.com
37.0.88.65	PTR	rt88bb0-37-65.routit.net
37.0.88.103	PTR	rt88bb0-37-103.routit.net
37.0.88.114	A+PTR	mail.vvvnederland.nl
37.0.88.122	A+PTR	mail.hampden.eu
37.0.88.145	PTR	rt88bb0-37-145.routit.net
37.0.88.145	A	mens-zeist.nl
37.0.88.155	PTR	rt88bb0-37-155.routit.net
37.0.88.155	A	www.333travel.be
37.0.88.155	A	333travel.com
37.0.88.156	PTR	rt88bb0-37-156.routit.net
37.0.88.156	A	ns2.333travel.nl
37.0.88.156	A	ns2.mindzero.nl
37.0.88.162	PTR	rt88bb0-37-162.routit.net
37.0.88.171	PTR	rt88bb0-37-171.routit.net
37.0.88.171	A	mail.top-bv.nl
37.0.88.187	PTR	rt88bb0-37-187.routit.net
37.0.88.193	A	mail.vlaggen.com
37.0.88.202	A	mail.recordindustry.com
37.0.88.204	PTR	rt88bb0-37-204.routit.net
37.0.88.204	A	mail.stylemathot.nl
37.0.88.217	PTR	rt88bb0-37-217.routit.net
37.0.88.217	A	mail.delissenmartens.nl
37.0.88.234	A	mail.rodesta.nl
37.0.88.250	PTR	rt88bb0-37-250.routit.net
37.0.88.255	PTR	rt88bb0-37-255.routit.net