Robtex

Up: 203.83.221.0/24
Can't show all results, try to descend to a more specific CIDR
Down left: 203.83.221.0/26
Down right: 203.83.221.64/26
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.83.221.66	PTR	ap-southeast-1.queue.amazonaws.com
203.83.221.70	A+PTR	biltong.ap-southeast-1.ec2-services.amazonaws.com
203.83.221.71	A+PTR	ec2.ap-southeast-1.amazonaws.com
203.83.221.73	A	monitoring.ap-southeast-1.amazonaws.com
203.83.221.76	A	sdb.ap-southeast-1.amazonaws.com
203.83.221.88	PTR	client-cp.storagegateway.ap-southeast-1.amazonaws.com
203.83.221.91	PTR	s3-transfer-ap-southeast-1.amazonaws.com
203.83.221.93	PTR	dp-1.storagegateway.ap-southeast-1.amazonaws.com
203.83.221.104	A	silvercode.co.nz
203.83.221.119	PTR	s3-ap-southeast-1.amazonaws.com
203.83.221.119	A	*.imagehosting.at.s3-ap-southeast-1.amazonaws.com
203.83.221.119	A	*.at.s3-ap-southeast-1.amazonaws.com
203.83.221.120	PTR	s3-ap-southeast-1-w.amazonaws.com
203.83.221.120	A	gm-production.s3.amazonaws.com
203.83.221.120	A	smowtion.com.s3.amazonaws.com
203.83.221.121	PTR	s3-website-ap-southeast-1.amazonaws.com
203.83.221.121	A	*.amanindo.com.s3-website-ap-southeast-1.amazonaws.com
203.83.221.121	A	*.zeado.com.s3-website-ap-southeast-1.amazonaws.com