Robtex

Up: 203.221.8.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 203.221.12.0/23
Down right: 203.221.14.0/23

IP	Type	Hostname
203.221.12.99	PTR	203-221-12-99.tpgi.com.au
203.221.12.99	A	99.12.221.203.dial.dynamic.acc01-brid-tam.comindico.com.au
203.221.12.103	PTR	103.12.221.203.dial.dynamic.acc01-brid-tam.comindico.com.au
203.221.12.150	A	zj-in.com
203.221.12.201	A+PTR	201.12.221.203.dial.dynamic.acc01-brid-tam.comindico.com.au
203.221.13.2	PTR	203-221-13-2.tpgi.com.au
203.221.13.33	PTR	203-221-13-33.tpgi.com.au
203.221.14.2	A+PTR	2.14.221.203.dial.dynamic.acc02-fred-lau.comindico.com.au
203.221.14.40	PTR	203-221-14-40.tpgi.com.au