Robtex

Up: 54.239.20.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 54.239.20.0/24
Down right: 54.239.21.0/24

IP	Type	Hostname
54.239.20.17	A+PTR	lookout-service.us-east-1.amazonaws.com
54.239.20.19	A	match-visualsearch.amazon.com
54.239.20.24	A	zeta-ipman.amazon.com
54.239.20.43	A	transcommunication-na-extern.amazon.com
54.239.20.44	A	account.kdp.amazon.com
54.239.20.48	A	geotrace-na-extern.amazon.com
54.239.20.50	A	primenow.amazon.com
54.239.20.53	A	account.kep.amazon.cn
54.239.20.53	A	ramp.amazon.com
54.239.20.157	A	tachyon.amazon.com
54.239.20.160	A	transcommunication-na-master-extern.amazon.com
54.239.20.164	A	m.shopbop.com
54.239.20.168	A	sg-console-1.amazonaws.com
54.239.20.172	A	oss-na-extern.amazon.com
54.239.20.174	A	cde-ta-g7g-sha-proxy-preprod.amazon.com
54.239.20.180	A	git-codecommit.us-east-1.amazonaws.com
54.239.20.181	A	tachyon.amazon.com
54.239.20.184	A	zcreator-prod-na.amazon.com
54.239.20.187	A	kwis-opf-preprod.amazon.com
54.239.20.188	A	kwis-opf.amazon.com
54.239.20.192	A	zcreator-prod-na.amazon.com
54.239.20.196	A	kwis-opf-preprod.amazon.com
54.239.20.203	A	importexport.amazonaws.com
54.239.20.210	A	ticket-ext-test.amazon.com
54.239.20.215	A	csapp-contactus-gamma.amazon.com
54.239.20.219	A	sb-htsapplication.amazon.com
54.239.20.220	A	itas-extern-preprod-na.amazon.com
54.239.20.230	A	us-east-1.signin.aws.amazon.com
54.239.20.235	A	sb-htsapplication.amazon.com
54.239.20.237	A	boxofficemojo.com
54.239.20.237	A	www.boxofficemojo.com
54.239.20.239	A	frat-na-external.amazon.com
54.239.20.240	A	6pm-client-authenticated.amazon.com
54.239.20.241	A	rio-mobile-ingress.amazon.com
54.239.20.242	A	polaron.amazon.com
54.239.20.245	A	www.amazonappservices.com
54.239.20.248	A+PTR	amz.onl
54.239.20.248	A	a.co
54.239.20.251	A	series-na-preprod.amazon.com
54.239.20.252	A	6pm-latest-client-authenticated.amazon.com
54.239.20.255	A	access-alexa-na.amazon.com
54.239.21.2	A	nom-mgmt.amazon.com
54.239.21.19	A	dyk-ext-na.amazon.com
54.239.21.20	A	vcc-onboarding.amazon.com
54.239.21.24	A	boxofficemojo.com
54.239.21.24	A	www.boxofficemojo.com
54.239.21.25	A	rio-mobile-ingress.amazon.com
54.239.21.26	A	frat-na-external.amazon.com
54.239.21.27	A+PTR	amz.onl
54.239.21.27	A	a.co
54.239.21.29	A	6pm-latest-client-authenticated.amazon.com
54.239.21.54	A	cloud9-bimp-us-east-1-prod.amazon.com
54.239.21.64	A	atv-ext-sha256.amazon.com
54.239.21.67	A	opf-www.amazon.com.mx
54.239.21.68	A	twitch.amazon.com
54.239.21.69	A	firs-ta-g7g.amazon.com
54.239.21.80	A	m.shopbop.com
54.239.21.82	A	origin-advertising.amazon.com
54.239.21.85	A	services.amazon.com.mx
54.239.21.86	A	omwees-na-extern.amazon.com
54.239.21.87	A	advertising-api.amazon.com
54.239.21.120	A	oss-na-master-extern.amazon.com
54.239.21.121	A	logistics-platform-preprod.amazon.com
54.239.21.122	A	sif-tams-gamma.amazon.com
54.239.21.123	A	www.withoutabox.com
54.239.21.123	A	withoutabox.com
54.239.21.124	A	logistics-platform.amazon.com
54.239.21.125	A	feed.browserapps.amazon.ca
54.239.21.125	A	storage.browserapps.amazon.ca
54.239.21.125	A	dossier.browserapps.amazon.com
54.239.21.134	A	sif-tams-gamma.amazon.com
54.239.21.138	A	logistics-platform.amazon.com
54.239.21.139	A	feed.browserapps.amazon.com
54.239.21.139	A	titan.app.amazonbrowserapp.ca
54.239.21.139	A	identity.browserapps.amazon.com
54.239.21.140	A	dv-manifest-service-na-prod.amazon.com
54.239.21.154	A	alexa-setup.amazon.com
54.239.21.157	A	bob-dispatch-migration-na.amazon.com
54.239.21.157	A	latinum.amazon.com
54.239.21.184	A	securephotostorageservice-na-external.amazon.com
54.239.21.192	A	securephotostorageservice-na-external.amazon.com
54.239.21.193	A	larynx-svc-na.amazon.com
54.239.21.195	A	omwees-na-extern.amazon.com
54.239.21.227	A	es.us-east-1.amazonaws.com
54.239.21.229	A	tax.audible.com
54.239.21.236	A	api-preprod.amazon.com
54.239.21.249	A	www.withoutabox.com
54.239.21.249	A	withoutabox.com