Robtex

Up: 203.171.192.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 203.171.192.0/24
Down right: 203.171.193.0/24

IP	Type	Hostname
203.171.193.194	A+PTR	mail1.hutchison.com.au
203.171.193.194	A	mail1.vh.com.au
203.171.193.194	A	mail1.theservicecentre.com.au
203.171.193.195	PTR	mail2.hutchison.com.au
203.171.193.195	A	mail2.theservicecentre.com.au
203.171.193.196	PTR	mail3.vodafone.com.au
203.171.193.196	PTR	testvodafone.com.au
203.171.193.197	PTR	mail4.vodafone.com.au
203.171.193.197	PTR	testvodafone.com.au