Robtex

Up: 115.165.168.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 115.165.172.0/23
Down right: 115.165.174.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
115.165.172.10	A+PTR	billing.mach.com.au
115.165.172.12	A+PTR	mf12.mach.net.au
115.165.172.14	A	pettigrew.net.au
115.165.172.15	PTR	psk1-cvc.mach.net.au
115.165.172.65	PTR	webconf.childrens.org.au
115.165.172.65	A	ns5.machdns.net.au
115.165.172.68	PTR	ns8.mach.net.au
115.165.172.110	A+PTR	nsa1-new.mach.net.au
115.165.172.161	PTR	115-165-172-161.mach.net.au
115.165.172.181	PTR	mach.com.au
115.165.172.183	PTR	core.mach.net.au
115.165.172.183	A	machtechnology.core.mach.net.au
115.165.173.7	PTR	115-165-173-7.mach.net.au
115.165.173.27	PTR	115-165-173-27.mach.net.au
115.165.173.27	A	www.charltonbrown.com.au
115.165.174.21	PTR	vkhn44-tcc.mach.net.au
115.165.174.21	A	museumofbrisbane.com.au
115.165.174.37	PTR	vsd-ha-tcc.pz.cust.mach.net.au
115.165.174.37	A	remote.pizzeys.com.au
115.165.174.38	A	www.true.org.au
115.165.174.38	A	true.org.au
115.165.174.66	A+PTR	ns6.machdns.net.au
115.165.174.69	A+PTR	ns9.mach.net.au
115.165.174.183	A+PTR	ns3.mach.net.au
115.165.174.213	A+PTR	mf13.mach.net.au
115.165.174.229	A	vsd-ha-tcc.pz.cust.mach.net.au
115.165.174.231	A+PTR	ad1-tcc.ad.mach.net.au
115.165.174.231	A	ad.mach.net.au
115.165.174.238	PTR	115-165-174-238.mach.net.au
115.165.174.238	A	ad.mach.net.au
115.165.174.238	A	ad2-tcc.ad.mach.net.au
115.165.174.245	PTR	psk1-tcc.mach.net.au
115.165.174.245	A	pizzey.com.au
115.165.174.245	A	theworkstation.com.au
115.165.175.34	A+PTR	dns1.mach.net.au
115.165.175.35	PTR	vsd-ha-tcc.pz.cust.mach.net.au
115.165.175.35	A	remote.pizzeys.com.au