Robtex

Up: 185.55.136.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 185.55.136.0/23
Down right: 185.55.138.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
185.55.136.21	A+PTR	melix.ams-ix.net
185.55.136.22	A+PTR	pneumatix.ams-ix.net
185.55.136.31	A+PTR	ns1.ams-ix.net
185.55.136.31	A	nemix1.ams-ix.net
185.55.136.32	A+PTR	ns2.ams-ix.net
185.55.136.32	A	nemix2.ams-ix.net
185.55.136.33	A	dns1.ams-ix.net
185.55.136.34	A	dns2.ams-ix.net
185.55.136.41	PTR	directrix.ams-ix.net
185.55.136.59	A+PTR	redirect.ams-ix.net
185.55.136.59	A	www.ams-ix.nl
185.55.136.59	A	ams-ix.nl
185.55.136.60	A+PTR	lb.ams-ix.net
185.55.136.60	A	us.ams-ix.net
185.55.136.60	A	ams-ix-caribbean.org
185.55.136.67	A	mxe-glo-01.ams-ix.net
185.55.136.68	A+PTR	mxe-eun-01.ams-ix.net
185.55.136.70	A	deliverix.ams-ix.net
185.55.136.97	A+PTR	appendix-test.ams-ix.net
185.55.136.97	A	appendix.ams-ix.net
185.55.136.97	A	caldav.ams-ix.net
185.55.136.122	A+PTR	reaffix.ams-ix.net
185.55.136.123	A	premierix.ams-ix.net
185.55.137.11	A	voix.ams-ix.net
185.55.137.25	A+PTR	dc-glo-01.ams-ix.com
185.55.137.25	A	ams-ix.com
185.55.137.26	A+PTR	dc-eun-01.ams-ix.com
185.55.137.26	A	ams-ix.com
185.55.137.28	A+PTR	gix.ams-ix.net
185.55.137.36	PTR	aztests.noc.ams-ix.net
185.55.137.37	A	rt.ams-ix.net
185.55.137.41	A	www-prod-1.ams-ix.net
185.55.139.4	A+PTR	remix.noc.ams-ix.net