Robtex

Up: 192.41.216.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 192.41.216.0/25
Down right: 192.41.216.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
192.41.216.1	A+PTR	rt63-0.resolvtelecom.fr
192.41.216.2	A	rt75-0.resolvtelecom.fr
192.41.216.7	A+PTR	office.resolvtelecom.fr
192.41.216.10	A+PTR	nsauth0.resolvtelecom.fr
192.41.216.10	A	nsauth0.ledeuns.net
192.41.216.12	A	ntp.resolv.fr
192.41.216.17	PTR	http-1.resolvhosting.com
192.41.216.17	A	c2ap.fr
192.41.216.17	A	aluglace.com
192.41.216.18	A	smtp.resolvhosting.com
192.41.216.19	A+PTR	mail.resolv.fr
192.41.216.19	A	mail.ceerta.com
192.41.216.19	A	mxmrcup.resolv.fr
192.41.216.21	A+PTR	mail.resolv.fr
192.41.216.21	A	mxmrcup.resolv.fr
192.41.216.33	A+PTR	cam1.resolv.fr
192.41.216.34	A+PTR	cam2.resolv.fr
192.41.216.35	A+PTR	cam3.resolv.fr
192.41.216.36	A+PTR	cam4.resolv.fr
192.41.216.37	A+PTR	cam5.resolv.fr
192.41.216.64	PTR	reserved.resolvtelecom.fr
192.41.216.72	PTR	reserved.resolvtelecom.fr
192.41.216.73	A	fidroit.clients.resolvtelecom.fr
192.41.216.75	PTR	reserved.resolvtelecom.fr
192.41.216.79	PTR	reserved.resolvtelecom.fr
192.41.216.129	A+PTR	mail.resolvhosting.com
192.41.216.131	A+PTR	www.laboratoireicare.com
192.41.216.131	A	groupeicare.com
192.41.216.133	A	cloud.resolv.fr
192.41.216.134	PTR	srv-sharepoint.ehtta.eu
192.41.216.134	A	ehtta.net
192.41.216.135	A+PTR	radiushotspot.resolv.fr
192.41.216.138	A+PTR	www.muresallier.com
192.41.216.138	A	muresallier.com
192.41.216.144	PTR	template.signe-et-sens.com
192.41.216.144	A	mypersonae.fr
192.41.216.151	PTR	www.ost-dev.com
192.41.216.151	A	ost-developpement.com
192.41.216.151	A	allodyn.fr
192.41.216.154	A	larmureshop.fr
192.41.216.172	A	resolvhosting.com
192.41.216.172	A	resolv.fr
192.41.216.203	PTR	mailout.ost-dev.com