Robtex

Up: 54.240.250.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 54.240.251.0/25
Down right: 54.240.251.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
54.240.251.4	A	origin-read.amazon.co.jp
54.240.251.4	A	read.amazon.co.jp
54.240.251.5	A	paragon-fe.amazon.com
54.240.251.10	A	ecs.amazonaws.jp
54.240.251.12	A	ecs-a-2.us-west-2.amazonaws.com
54.240.251.24	A	payments.amazon.co.jp
54.240.251.33	A	identity-snds-fe.amazon.com
54.240.251.41	A+PTR	amzn.asia
54.240.251.45	A	janecanary-preview.amazon.com
54.240.251.49	A	spyglass-preview.amazon.com
54.240.251.50	A	aps-fe-master.amazon.com
54.240.251.51	A	cs-ext.amazon.co.jp
54.240.251.52	A	ecs-t-1.us-west-2.amazonaws.com
54.240.251.53	A	ecs-t-2.us-west-2.amazonaws.com
54.240.251.54	A	elasticfilesystem.us-west-2.amazonaws.com
54.240.251.55	A	wms-fe.amazon-adsystem.com
54.240.251.55	A	wms.assoc-amazon.jp
54.240.251.55	A	wms-fe.assoc-amazon.com
54.240.251.59	A	ktpx-fe.amazon.com
54.240.251.63	A	cookie.browserapps.amazon.co.jp
54.240.251.71	A	bees.amazon.com
54.240.251.79	A	client-cp.storagegateway.us-west-2.amazonaws.com
54.240.251.80	A	anon-cp.storagegateway.us-west-2.amazonaws.com
54.240.251.81	A	amazon.com.sg
54.240.251.88	A	mws.amazonservices.jp
54.240.251.100	A	audible.co.jp
54.240.251.100	A	www.audible.co.jp
54.240.251.102	A	api-sandbox.amazon.co.jp
54.240.251.127	A	workdocs.us-west-2.amazonaws.com
54.240.251.131	A	ec2.us-west-2.amazonaws.com
54.240.251.132	A	ds.us-west-2.amazonaws.com
54.240.251.134	A	codepipeline.us-west-2.amazonaws.com
54.240.251.145	A	www.amazon-operations.co.uk
54.240.251.145	A	amazon.jobs
54.240.251.145	A	www.amazon.jobs
54.240.251.149	A	api.amazon.co.jp
54.240.251.156	A	payments.amazon.co.jp
54.240.251.156	A	payments-jp.amazon.com
54.240.251.157	A	fe-music.amazon.com
54.240.251.164	A	dv-manifest-service-jp-prod.amazon.com
54.240.251.176	A	switchyard-fe.amazon.com
54.240.251.178	A	switchyard-fe-preprod.amazon.com
54.240.251.180	A	status.aws.amazon.com
54.240.251.187	A	kinesis.us-west-2.amazonaws.com
54.240.251.197	A+PTR	ihmcastleblack-preview-us-west-2.amazon.com
54.240.251.200	A	kinesis.us-west-2.amazonaws.com
54.240.251.213	A	autoscaling.us-west-2.amazonaws.com
54.240.251.214	A	web-quicksight.us-west-2.amazonaws.com
54.240.251.214	A	us-west-2.quicksight.aws.amazon.com
54.240.251.215	A	kinesisanalytics.us-west-2.amazonaws.com
54.240.251.216	A	redshift.us-west-2.amazonaws.com
54.240.251.223	A	arsenal.us-west-2.amazonaws.com
54.240.251.227	A	watch.amazon.co.jp
54.240.251.250	A	feedback.ileadon.com
54.240.251.250	A	feedback-smtp.us-west-2.amazonses.com