Robtex

Up: 83.217.248.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 83.217.252.0/23
Down right: 83.217.254.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
83.217.252.0	PTR	83-217-252-0-eu1.opsourcecloud.net
83.217.252.130	PTR	83-217-252-130-eu1.opsourcecloud.net
83.217.252.130	A	cloud-eu.dimensiondata.com
83.217.253.253	PTR	83-217-253-253-eu1.opsourcecloud.net
83.217.254.0	PTR	83-217-254-0-eu1.opsourcecloud.net
83.217.254.10	PTR	83-217-254-10-eu1.opsourcecloud.net
83.217.254.10	A	cds01.eu1.rhui.mcp-services.net
83.217.254.11	PTR	83-217-254-11-eu1.opsourcecloud.net
83.217.254.11	A	cds02.eu1.rhui.mcp-services.net
83.217.254.17	PTR	83-217-254-17-eu1.opsourcecloud.net
83.217.254.17	A	wikidirector.ru
83.217.254.17	A	wikidirektor.ru
83.217.254.24	A	konfiguredev.com
83.217.254.53	PTR	83-217-254-53-eu1.opsourcecloud.net
83.217.254.96	PTR	83-217-254-96-eu1.opsourcecloud.net
83.217.254.96	A	twc33015.net
83.217.254.154	A	ns3.onlineclouddemo.com
83.217.254.192	PTR	83-217-254-192-eu1.opsourcecloud.net
83.217.254.192	A	www2.yooz.fr
83.217.255.34	PTR	relay.zolotoyvek.ua
83.217.255.73	PTR	83-217-255-73-eu1.opsourcecloud.net
83.217.255.73	A	millennial-fund.com
83.217.255.73	A	www.millennial-fund.com
83.217.255.108	PTR	83-217-255-108-eu1.opsourcecloud.net
83.217.255.110	PTR	83-217-255-110-eu1.opsourcecloud.net
83.217.255.110	A	staging.yooz.fr
83.217.255.144	PTR	83-217-255-144-eu1.opsourcecloud.net
83.217.255.144	A	eco-beton.be
83.217.255.144	A	bxlsrvweb1.itconnect.be
83.217.255.204	A	chrisjones.co
83.217.255.225	PTR	83-217-255-225-eu1.opsourcecloud.net
83.217.255.225	A	www.semm.it
83.217.255.228	PTR	83-217-255-228-eu1.opsourcecloud.net
83.217.255.255	PTR	83-217-255-255-eu1.opsourcecloud.net