Robtex

Up: 210.54.58.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 210.54.58.0/25
Down right: 210.54.58.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
210.54.58.14	PTR	default-rdns.vocus.co.nz
210.54.58.17	PTR	mail.appserv.co.nz
210.54.58.17	A	mail.telecomretail.co.nz
210.54.58.17	A	mail.nathanshaw.com
210.54.58.21	PTR	mail2.appserv.co.nz
210.54.58.92	PTR	default-rdns.vocus.co.nz
210.54.58.92	A	telegistics.net.nz
210.54.58.92	A	fivestar.co.nz
210.54.58.98	PTR	appserv-static-98.orcon.net.nz
210.54.58.98	A	bizworkscrm.com.au
210.54.58.106	PTR	default-rdns.vocus.co.nz
210.54.58.129	PTR	default-rdns.vocus.co.nz
210.54.58.154	PTR	appserv-static-154.orcon.net.nz
210.54.58.154	A	businessoutcomes.co.nz
210.54.58.154	A	wang.co.nz
210.54.58.156	A	eckocapital.com
210.54.58.194	PTR	appserv-static-194.orcon.net.nz
210.54.58.194	A	dynasty.co.nz
210.54.58.194	A	citylifehotels.co.nz
210.54.58.204	PTR	default-rdns.vocus.co.nz
210.54.58.238	A	liferecord.co.nz
210.54.58.244	PTR	default-rdns.vocus.co.nz
210.54.58.244	A	nectars.co.nz
210.54.58.244	A	prearrivallearning.com
210.54.58.246	PTR	appserv-static-246.orcon.net.nz
210.54.58.246	A	mail.lasonianatural.com
210.54.58.246	A	smtp2.augen.co.nz