Robtex

Up: 177.72.240.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 177.72.240.0/22
Down right: 177.72.244.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
177.72.243.194	A+PTR	gru-a-orca.amazon.com
177.72.243.194	A	gru-orca-bak.amazon.com
177.72.243.198	PTR	gru-b-orca.amazon.com
177.72.243.198	A	gru-orca-bak.amazon.com
177.72.243.198	A	vpn.ivpn.amazon-corp.com
177.72.244.0	PTR	s3-sa-east-1.amazonaws.com
177.72.244.1	PTR	s3-sa-east-1-w.amazonaws.com
177.72.244.2	A+PTR	s3-console-sa-east-1.console.aws.amazon.com
177.72.244.3	A+PTR	s3-console-sa-east-1.amazonaws.com
177.72.244.4	A	s3-seeder.sa-east-1.amazonaws.com
177.72.244.5	A	s3-tracker.sa-east-1.amazonaws.com
177.72.244.6	A	tafora.com.br
177.72.244.8	PTR	client-cp.storagegateway.sa-east-1.amazonaws.com
177.72.244.9	PTR	dp-1.storagegateway.sa-east-1.amazonaws.com
177.72.244.10	PTR	storagegateway.sa-east-1.amazonaws.com
177.72.244.10	A	config.storagegateway.sa-east-1.amazonaws.com
177.72.244.11	PTR	proxy-app.storagegateway.sa-east-1.amazonaws.com
177.72.244.34	A	cloudforge-external-gru.amazon.com
177.72.244.48	A	a.ns.sa-east-1.amazonaws.com
177.72.244.50	A	cde-ta-g7g-gru.amazon.com.br
177.72.244.52	PTR	cde-ta-g7g-newstack-preprod.amazon.com
177.72.244.52	A	cde-ta-g7g-gru-preprod.amazon.com.br
177.72.244.57	A	anon-cp.storagegateway.sa-east-1.amazonaws.com
177.72.244.58	A	proxy-app.storagegateway.sa-east-1.amazonaws.com
177.72.244.59	A	storagegateway.sa-east-1.amazonaws.com
177.72.244.60	A	dp-1.storagegateway.sa-east-1.amazonaws.com
177.72.244.61	A	client-cp.storagegateway.sa-east-1.amazonaws.com
177.72.244.62	A	sg-console-sa-east-1.console.aws.amazon.com
177.72.244.86	A	sa-east-1.signin-reg.aws.amazon.com
177.72.244.86	A	sa-east-1.signin.aws.amazon.com
177.72.244.101	A	sts.sa-east-1.amazonaws.com
177.72.244.108	A	swf.sa-east-1.amazonaws.com
177.72.244.128	PTR	s3-sa-east-1.amazonaws.com
177.72.244.129	PTR	s3-sa-east-1-w.amazonaws.com
177.72.244.130	A+PTR	s3-console-sa-east-1.console.aws.amazon.com
177.72.244.131	A+PTR	s3-console-sa-east-1.amazonaws.com
177.72.244.132	A	s3-seeder.sa-east-1.amazonaws.com
177.72.244.133	A	s3-tracker.sa-east-1.amazonaws.com
177.72.244.134	A	tafora.com.br
177.72.244.136	PTR	client-cp.storagegateway.sa-east-1.amazonaws.com
177.72.244.138	PTR	storagegateway.sa-east-1.amazonaws.com
177.72.244.138	A	config.storagegateway.sa-east-1.amazonaws.com
177.72.244.139	PTR	proxy-app.storagegateway.sa-east-1.amazonaws.com
177.72.244.154	A	monitor-api-public-gru.amazon.com
177.72.244.155	A	monitoring.sa-east-1.amazonaws.com
177.72.244.162	A	cloudforge-external-gru.amazon.com
177.72.244.176	A	b.ns.sa-east-1.amazonaws.com
177.72.244.179	A	sqs.sa-east-1.amazonaws.com
177.72.244.184	A	anon-cp.storagegateway.sa-east-1.amazonaws.com
177.72.244.185	A	proxy-app.storagegateway.sa-east-1.amazonaws.com
177.72.244.186	A	storagegateway.sa-east-1.amazonaws.com
177.72.244.187	A	dp-1.storagegateway.sa-east-1.amazonaws.com
177.72.244.188	A	client-cp.storagegateway.sa-east-1.amazonaws.com
177.72.244.189	A	sg-console-sa-east-1.console.aws.amazon.com
177.72.244.198	A	cde-ta-g7g-sha-proxy.amazon.com.br
177.72.244.202	A	kinesis.sa-east-1.amazonaws.com
177.72.244.216	A	sa-east-1.signin.aws.amazon.com
177.72.244.218	A	streams.dynamodb.sa-east-1.amazonaws.com
177.72.244.224	A	rds.sa-east-1.amazonaws.com
177.72.244.233	A	elasticbeanstalk.sa-east-1.amazonaws.com
177.72.245.0	PTR	s3-sa-east-1.amazonaws.com
177.72.245.3	PTR	s3-console-sa-east-1.amazonaws.com
177.72.245.6	A	tafora.com.br
177.72.245.6	A	projetosgratis.com.br
177.72.245.8	PTR	client-cp.storagegateway.sa-east-1.amazonaws.com
177.72.245.9	A+PTR	dp-1.storagegateway.sa-east-1.amazonaws.com
177.72.245.10	PTR	storagegateway.sa-east-1.amazonaws.com
177.72.245.10	A	config.storagegateway.sa-east-1.amazonaws.com
177.72.245.11	PTR	proxy-app.storagegateway.sa-east-1.amazonaws.com
177.72.245.33	A	cloudforge-external-gru.amazon.com
177.72.245.53	A	anon-cp.storagegateway.sa-east-1.amazonaws.com
177.72.245.54	A	proxy-app.storagegateway.sa-east-1.amazonaws.com
177.72.245.55	A	storagegateway.sa-east-1.amazonaws.com
177.72.245.56	A	dp-1.storagegateway.sa-east-1.amazonaws.com
177.72.245.57	A	client-cp.storagegateway.sa-east-1.amazonaws.com
177.72.245.58	A	sg-console-sa-east-1.console.aws.amazon.com
177.72.245.128	A	trent.sa-east-1.amazonaws.com
177.72.245.138	A	sa-east-1.signin.aws.amazon.com
177.72.245.139	A	sa-east-1.console.aws.amazon.com
177.72.245.145	A	c.ns.sa-east-1.amazonaws.com
177.72.245.147	A	kms.sa-east-1.amazonaws.com
177.72.245.163	A	cloudformation.sa-east-1.amazonaws.com
177.72.245.179	A	sa-east-1.elasticmapreduce.amazonaws.com
177.72.245.184	A	ec2.sa-east-1.amazonaws.com
177.72.245.185	A	ssm.sa-east-1.amazonaws.com
177.72.245.187	A	cloudtrail.sa-east-1.amazonaws.com
177.72.245.190	A	elasticmapreduce.sa-east-1.amazonaws.com
177.72.245.196	A	sns.sa-east-1.amazonaws.com
177.72.245.225	A	redshift.sa-east-1.amazonaws.com
177.72.245.230	A	s3-console-sa-east-1.console.aws.amazon.com
177.72.245.231	A	autoscaling.sa-east-1.amazonaws.com
177.72.245.235	A	es.sa-east-1.amazonaws.com
177.72.246.78	A	gru-c-orca.amazon.com