Robtex

Up: 165.225.72.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 165.225.72.0/23
Down right: 165.225.74.0/23

IP	Type	Hostname
165.225.72.33	A	fra4-vpn.zscaler.net
165.225.73.67	A	smcacluster.zscloud.net
165.225.73.67	A	login.zscloud.net
165.225.73.68	A	a.ns.zscloud.net
165.225.73.68	A	pac.zscloud.net
165.225.73.73	A	smcacluster.zscloud.net
165.225.73.75	A	update1.zscloud.net
165.225.73.251	A	broker4.fra4.prod.zpath.net
165.225.73.252	A	broker3.fra4.prod.zpath.net
165.225.73.253	A	broker2.fra4.prod.zpath.net
165.225.73.254	A	broker1.fra4.prod.zpath.net
165.225.74.155	A+PTR	fra4-svc2.zscaler9.net
165.225.75.49	PTR	domain.not.configured
165.225.75.255	PTR	domain.not.configured