Robtex

Up: 66.117.16.0/24
Can't show all results, try to descend to a more specific CIDR
Down left: 66.117.16.0/26
Down right: 66.117.16.64/26
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
66.117.16.0	A+PTR	r0.p23.neolane.net
66.117.16.1	A+PTR	r1.p23.neolane.net
66.117.16.1	A	a.mx.p23.neolane.net
66.117.16.2	PTR	r2.p23.neolane.net
66.117.16.2	A	b.mx.p23.neolane.net
66.117.16.5	A+PTR	r5.p23.neolane.net
66.117.16.6	A+PTR	r6.p23.neolane.net
66.117.16.7	A+PTR	r7.p23.neolane.net
66.117.16.8	A+PTR	r8.p23.neolane.net
66.117.16.9	A+PTR	r9.p23.neolane.net
66.117.16.13	A+PTR	r13.p23.neolane.net
66.117.16.13	A	a.mx.p26.neolane.net
66.117.16.14	A+PTR	r14.p23.neolane.net
66.117.16.14	A	b.mx.p26.neolane.net
66.117.16.16	A+PTR	r16.p23.neolane.net
66.117.16.16	A	webproxy1-dev-ukb1.neolane.net
66.117.16.17	PTR	r17.p23.neolane.net
66.117.16.17	A	hostelworld-t.neolane.net
66.117.16.17	A	t.update.cotswoldoutdoor.com
66.117.16.20	PTR	ns1.sj1.ss-omtrdc.net
66.117.16.22	A+PTR	r22.notifications.elsevier.com
66.117.16.23	A	r23.notifications.elsevier.com
66.117.16.24	A+PTR	r24.p23.neolane.net
66.117.16.25	A+PTR	r25.p23.neolane.net
66.117.16.26	A+PTR	r26.services.boulanger.com
66.117.16.32	PTR	r32.news.gemo.fr
66.117.16.32	A	varnergroup-mkt-prod1-lb.campaign.adobe.com
66.117.16.32	A	nationalexpress-mkt-prod1-t.campaign.adobe.com
66.117.16.51	A+PTR	r51.e.idmobile.co.uk
66.117.16.52	A+PTR	r52.e.idmobile.co.uk
66.117.16.53	A+PTR	r53.emails.hostelworld.com
66.117.16.60	A+PTR	r60.emails.hostelworld.com
66.117.16.86	A	r86.news.pandora.net
66.117.16.87	A+PTR	r87.news.pandora.net
66.117.16.88	A+PTR	r88.news.pandora.net
66.117.16.89	A+PTR	r89.news.pandora.net
66.117.16.90	A+PTR	r90.news.pandora.net