Robtex

Up: 217.28.64.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 217.28.64.0/25
Down right: 217.28.64.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
217.28.64.1	A	tdsl-alcyonis.alcyonis.net
217.28.64.1	A	fw.alcyonis.net
217.28.64.2	A	ip-rnis.alcyonis.fr
217.28.64.3	A	styx.alcyonis.fr
217.28.64.4	A+PTR	ns2.alcyonis.fr
217.28.64.4	A+PTR	mail1.alcyonis.fr
217.28.64.4	A	digital.mondadori.fr
217.28.64.5	A+PTR	ns1.alcyonis.fr
217.28.64.5	A	digital.mondadori.fr
217.28.64.6	PTR	samothrace2.alcyonis.fr
217.28.64.6	A	air-tertiaire.fr
217.28.64.6	A	nouvelhygro.fr
217.28.64.7	A	alcyonis64-7.alcyonis.fr
217.28.64.9	A+PTR	iris.alcyonis.fr
217.28.64.11	A+PTR	ns0.alcyonis.fr
217.28.64.11	A	zeus2.alcyonis.fr
217.28.64.11	A	redirections.alcyonis.fr
217.28.64.12	PTR	vip-web.alcyonis.fr
217.28.64.12	A	mail2.alcyonis.fr
217.28.64.13	A	mail.alagence.com
217.28.64.13	A	mail.dreamhomedesign.fr
217.28.64.13	A	mail.cnpv.fr
217.28.64.15	A+PTR	spiridon.alcyonis.fr
217.28.64.16	A	antispam.alcyonis.fr
217.28.64.18	PTR	mail3.alcyonis.fr
217.28.64.18	A	mail.azurproj.com
217.28.64.18	A	mail.alcyonis.fr
217.28.64.19	A+PTR	web01.alcyonis.fr
217.28.64.19	A	alcyonis.net
217.28.64.19	A	emailing.alcyonis.fr
217.28.64.21	A	web-w2k8-01.alcyonis.fr
217.28.64.22	A+PTR	mail2.alcyonis.fr
217.28.64.22	A	mx2.effi-stat.com
217.28.64.22	A	mail4.alcyonis.fr
217.28.64.28	A+PTR	zimbra-ext.alcyonis.fr
217.28.64.28	A	zimbra-ext.alcyonis.net
217.28.64.29	A	mail-int.alcyonis.fr
217.28.64.35	A+PTR	ns0-bkp01.alcyonis.fr
217.28.64.40	PTR	web02.alcyonis.fr
217.28.64.40	A	www.effi-stat.com
217.28.64.40	A	alcyonis.fr
217.28.64.41	PTR	alcyonis64-41.alcyonis.fr
217.28.64.41	A	lsconsulting.eu
217.28.64.41	A	volcae.fr
217.28.64.51	A	log-mgmt.alcyonis.fr
217.28.64.51	A	monitor.alcyonis.fr
217.28.64.51	A	*.gigglestixhockey.com
217.28.64.61	A+PTR	alcyonis64-61.alcyonis.fr
217.28.64.76	PTR	alcyonis64-76.alcyonis.fr
217.28.64.98	A	postgresql.alcyonis.fr
217.28.64.98	A	jason.alcyonis.fr
217.28.64.102	A	alcyonis64-102.alcyonis.fr
217.28.64.123	A	alcyonis64-123.alcyonis.fr
217.28.64.125	A	alcyonis64-125.alcyonis.fr
217.28.64.128	A+PTR	alcyonis64-128.alcyonis.fr
217.28.64.141	PTR	alcyonis64-141.alcyonis.fr
217.28.64.164	PTR	alcyonis64-164.alcyonis.fr
217.28.64.182	PTR	alcyonis64-182.alcyonis.fr
217.28.64.206	A	alcyonis64-206.alcyonis.fr
217.28.64.208	A+PTR	alcyonis64-208.alcyonis.fr
217.28.64.222	A	alcyonis64-222.alcyonis.fr
217.28.64.247	A	alcyonis64-247.alcyonis.fr
217.28.64.254	A	completel-gw.alcyonis.fr