Robtex

Up: 203.221.232.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 203.221.232.0/23
Down right: 203.221.234.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.221.233.44	PTR	44.233.221.203.static.comindico.com.au
203.221.233.44	A	lkp1.racingvictoria.com
203.221.233.62	A	proxy.bordernet.com.au
203.221.233.66	PTR	66.233.221.203.static.comindico.com.au
203.221.233.66	A	mail.arb.com.au
203.221.233.66	A	topgearaccess.com.au
203.221.233.138	PTR	mail.resolvesoftware.com.au
203.221.233.200	A+PTR	200.233.221.203.static.comindico.com.au
203.221.234.77	A	77.234.221.203.static.comindico.com.au
203.221.234.98	PTR	98.234.221.203.static.comindico.com.au
203.221.234.121	PTR	121.234.221.203.static.comindico.com.au
203.221.234.135	PTR	135.234.221.203.static.comindico.com.au
203.221.234.158	A+PTR	158.234.221.203.static.comindico.com.au
203.221.234.173	A	173.234.221.203.static.comindico.com.au
203.221.234.202	PTR	202.234.221.203.static.comindico.com.au
203.221.234.226	PTR	226.234.221.203.static.comindico.com.au
203.221.234.226	A	www.firstnet.info
203.221.234.226	A	fngateway.com.au
203.221.234.254	PTR	254.234.221.203.static.comindico.com.au