Robtex

Up: 13.224.48.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 13.224.48.0/23
Down right: 13.224.50.0/23

IP	Type	Hostname
13.224.49.156	A	chusersales.slack.com
13.224.49.156	A	emc-att.slack.com
13.224.49.156	A	magicleapdevelopers.slack.com
13.224.51.5	A+PTR	server-13-224-51-5.phx50.r.cloudfront.net
13.224.51.5	A	frcfastapp.com
13.224.51.11	A+PTR	server-13-224-51-11.phx50.r.cloudfront.net
13.224.51.11	A	frcfastapp.com
13.224.51.11	A	hydroproandaccessories.com
13.224.51.15	A+PTR	server-13-224-51-15.phx50.r.cloudfront.net
13.224.51.21	A+PTR	server-13-224-51-21.phx50.r.cloudfront.net
13.224.51.21	A	hydroproandaccessories.com
13.224.51.23	A	hjxha.com
13.224.51.24	A+PTR	server-13-224-51-24.phx50.r.cloudfront.net
13.224.51.25	A+PTR	server-13-224-51-25.phx50.r.cloudfront.net
13.224.51.25	A	frcfastapp.com
13.224.51.26	A	hydroproandaccessories.com
13.224.51.36	A+PTR	server-13-224-51-36.phx50.r.cloudfront.net
13.224.51.36	A	ibeblingin.com
13.224.51.47	A+PTR	server-13-224-51-47.phx50.r.cloudfront.net
13.224.51.47	A	hjxha.com
13.224.51.58	A+PTR	server-13-224-51-58.phx50.r.cloudfront.net
13.224.51.80	A+PTR	server-13-224-51-80.phx50.r.cloudfront.net
13.224.51.80	A	frcfastapp.com
13.224.51.87	A+PTR	server-13-224-51-87.phx50.r.cloudfront.net
13.224.51.92	A+PTR	server-13-224-51-92.phx50.r.cloudfront.net
13.224.51.92	A	hjxha.com
13.224.51.100	A+PTR	server-13-224-51-100.phx50.r.cloudfront.net
13.224.51.100	A	ibeblingin.com
13.224.51.101	A+PTR	server-13-224-51-101.phx50.r.cloudfront.net
13.224.51.101	A	ibeblingin.com
13.224.51.106	A	ibeblingin.com
13.224.51.107	A+PTR	server-13-224-51-107.phx50.r.cloudfront.net
13.224.51.108	A+PTR	server-13-224-51-108.phx50.r.cloudfront.net
13.224.51.111	A+PTR	server-13-224-51-111.phx50.r.cloudfront.net
13.224.51.115	A+PTR	server-13-224-51-115.phx50.r.cloudfront.net
13.224.51.115	A	hydroproandaccessories.com
13.224.51.118	A+PTR	server-13-224-51-118.phx50.r.cloudfront.net
13.224.51.123	A+PTR	server-13-224-51-123.phx50.r.cloudfront.net
13.224.51.123	A	hjxha.com
13.224.51.124	A+PTR	server-13-224-51-124.phx50.r.cloudfront.net
13.224.51.127	A+PTR	server-13-224-51-127.phx50.r.cloudfront.net
13.224.51.128	A+PTR	server-13-224-51-128.phx50.r.cloudfront.net