Robtex

Up: 202.72.32.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 202.72.32.0/23
Down right: 202.72.34.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
202.72.32.18	PTR	ns2.ispnet.com.au
202.72.32.18	A	relay.ispnet.com.au
202.72.32.20	PTR	mail.cliftonstreetdentistsrichmond.com.au
202.72.32.20	PTR	mail.ispnetworks.com.au
202.72.32.20	PTR	mail.marinaradiology.com.au
202.72.32.25	A+PTR	mxfilter.ispnet.com.au
202.72.32.25	A	mxfilter0.ispnet.com.au
202.72.32.25	A	mail.mccabearchitects.com.au
202.72.32.34	PTR	ns1.ispnet.com.au
202.72.32.36	A+PTR	ns1.ispnet.com.au
202.72.32.37	A	unitedbrandsdirect.com
202.72.32.38	A+PTR	mxfilter2.ispnet.com.au
202.72.32.40	PTR	ftp.ispnet.com.au
202.72.32.40	PTR	vwww2.ispnet.com.au
202.72.32.40	A	steinert-sturton-gill.com.au
202.72.32.42	A+PTR	exchange.ispnet.com.au
202.72.32.42	A	mx1.ispnet.com.au
202.72.32.42	A	mx2.ispnet.com.au
202.72.32.45	PTR	mx2.ispnet.com.au
202.72.32.102	PTR	obm.ispnet.com.au
202.72.33.1	PTR	fw1.gw.ispnet.com.au
202.72.33.2	A+PTR	ns2.ispnet.com.au
202.72.33.4	A	mail.tbrt.com.au
202.72.33.4	A	mail.ispnetgrid.com.au
202.72.33.26	PTR	mail.norbrook.com.au
202.72.33.26	A+PTR	mail.norbrook.co.nz
202.72.33.28	A	mail.communitycareers.com.au
202.72.33.28	A	mail.communitycareers.co.nz
202.72.33.29	PTR	brisbane.rimfireresources.com.au
202.72.33.29	A	mail.gradlinkprogram.co.nz
202.72.33.29	A	mail.gradlinkprogram.com.au
202.72.34.57	A	leaseeagle.com
202.72.34.57	A	trevena.synetek.com
202.72.34.57	A	*.synetek.com
202.72.34.86	A+PTR	remote.vmromano.com.au
202.72.34.86	PTR	crcgroup.com.au
202.72.34.86	A	mail.vmromano.com.au
202.72.34.102	A	fineonline.com.au
202.72.34.106	A	mail.jeanswest.com.au
202.72.34.135	A+PTR	mail.designwcc.com.au
202.72.34.135	A	3clicks.designwcc.com.au
202.72.34.153	A	mail.dataagility.com
202.72.34.154	A+PTR	mail2.dataagility.com
202.72.34.162	A+PTR	exchange.ispnet.com.au
202.72.34.166	PTR	vcenter.ispnet.com.au
202.72.35.18	A+PTR	mail.steinert.com.au
202.72.35.18	A	mail.ssgm.com.au
202.72.35.22	A	mail.irsaust.com
202.72.35.26	A+PTR	mail.wyndarra.com
202.72.35.26	A	webmail.wyndarra.com
202.72.35.58	PTR	mail.sew-eurodrive.com.au
202.72.35.58	A	mx2.sew-eurodrive.co.nz
202.72.35.60	A+PTR	mail.sew-eurodrive.com.au
202.72.35.98	A+PTR	melbourne.rimfireresources.com.au
202.72.35.98	A	mail.rimfireresources.com.au
202.72.35.107	A	mail.asaconsultum.com
202.72.35.130	A+PTR	mail.epagroup.com.au
202.72.35.139	A	mailbackup.jeanswest.com.au
202.72.35.154	A	sql.dataagility.com
202.72.35.182	A	mail.archform.com.au
202.72.35.190	PTR	mail.rothelowman.com.au