Robtex

Up: 203.21.194.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 203.21.194.0/25
Down right: 203.21.194.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.21.194.1	PTR	dmz.nrahs.nsw.gov.au
203.21.194.13	A+PTR	int.ncahs.health.nsw.gov.au
203.21.194.20	PTR	dns1.nrahs.nsw.gov.au
203.21.194.20	A+PTR	dns1.ncahs.health.nsw.gov.au
203.21.194.20	A+PTR	lis-itt-sis98.ncahs.health.nsw.gov.au
203.21.194.21	PTR	dns2.ucrh.edu.au
203.21.194.21	PTR	lis-itt-sis99.ucrh.edu.au
203.21.194.21	A+PTR	dns2.nrahs.nsw.gov.au
203.21.194.26	PTR	www.nrudrh.edu.au
203.21.194.28	PTR	smtp.ncahs.nsw.gov.au
203.21.194.28	A+PTR	smtp.nrahs.nsw.gov.au
203.21.194.28	A+PTR	are-itt-sms01.ncahs.health.nsw.gov.au
203.21.194.29	A+PTR	lis-itt-sms08.ucrh.edu.au
203.21.194.29	A+PTR	lis-itt-sms08.ncahs.health.nsw.gov.au
203.21.194.29	A+PTR	lis-itt-sms08.nnswlhd.health.nsw.gov.au
203.21.194.34	A	are-itt-sms01.ncahs.health.nsw.gov.au
203.21.194.46	A+PTR	nnswlhd.health.nsw.gov.au
203.21.194.50	A+PTR	dementiacare.health.nsw.gov.au
203.21.194.62	A+PTR	av.ncahs.health.nsw.gov.au