Robtex

Up: 54.192.160.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 54.192.168.0/22
Down right: 54.192.172.0/22

IP	Type	Hostname
54.192.172.28	A+PTR	server-54-192-172-28.bom2.r.cloudfront.net
54.192.172.80	A+PTR	server-54-192-172-80.icn55.r.cloudfront.net
54.192.172.80	A	server-54-192-172-80.bom2.r.cloudfront.net
54.192.172.166	A+PTR	server-54-192-172-166.bom2.r.cloudfront.net
54.192.172.254	PTR	server-54-192-172-254.bom2.r.cloudfront.net
54.192.173.0	PTR	server-54-192-173-0.icn55.r.cloudfront.net
54.192.173.0	A	server-54-192-173-0.bom2.r.cloudfront.net
54.192.173.58	PTR	server-54-192-173-58.icn55.r.cloudfront.net
54.192.173.58	A	server-54-192-173-58.bom2.r.cloudfront.net
54.192.173.67	PTR	server-54-192-173-67.icn55.r.cloudfront.net
54.192.173.67	A	server-54-192-173-67.bom2.r.cloudfront.net
54.192.173.121	A+PTR	server-54-192-173-121.icn55.r.cloudfront.net
54.192.173.121	A	server-54-192-173-121.bom2.r.cloudfront.net
54.192.173.125	A+PTR	server-54-192-173-125.bom2.r.cloudfront.net
54.192.173.126	PTR	server-54-192-173-126.icn55.r.cloudfront.net
54.192.173.126	A	server-54-192-173-126.bom2.r.cloudfront.net
54.192.173.127	PTR	server-54-192-173-127.icn55.r.cloudfront.net
54.192.173.139	PTR	server-54-192-173-139.icn55.r.cloudfront.net
54.192.173.139	A	server-54-192-173-139.bom2.r.cloudfront.net
54.192.173.243	PTR	server-54-192-173-243.icn55.r.cloudfront.net
54.192.173.243	A	server-54-192-173-243.bom2.r.cloudfront.net
54.192.174.4	A+PTR	server-54-192-174-4.icn55.r.cloudfront.net
54.192.174.4	A	server-54-192-174-4.bom2.r.cloudfront.net
54.192.174.12	PTR	server-54-192-174-12.icn55.r.cloudfront.net
54.192.174.12	A	server-54-192-174-12.bom2.r.cloudfront.net
54.192.174.21	A+PTR	server-54-192-174-21.icn55.r.cloudfront.net
54.192.174.32	PTR	server-54-192-174-32.icn55.r.cloudfront.net
54.192.174.32	A	server-54-192-174-32.bom2.r.cloudfront.net
54.192.174.33	A+PTR	server-54-192-174-33.bom2.r.cloudfront.net
54.192.174.34	A+PTR	server-54-192-174-34.icn55.r.cloudfront.net
54.192.174.36	A+PTR	server-54-192-174-36.bom2.r.cloudfront.net
54.192.174.43	PTR	server-54-192-174-43.icn55.r.cloudfront.net
54.192.174.51	A+PTR	server-54-192-174-51.icn55.r.cloudfront.net
54.192.174.51	A	server-54-192-174-51.bom2.r.cloudfront.net
54.192.174.71	PTR	server-54-192-174-71.icn55.r.cloudfront.net
54.192.174.71	A	sikkimmanipaluniversity.co.in
54.192.174.71	A	server-54-192-174-71.bom2.r.cloudfront.net
54.192.174.76	PTR	server-54-192-174-76.icn55.r.cloudfront.net
54.192.174.76	A	server-54-192-174-76.bom2.r.cloudfront.net
54.192.174.177	PTR	server-54-192-174-177.icn55.r.cloudfront.net
54.192.174.177	A	server-54-192-174-177.bom2.r.cloudfront.net
54.192.175.17	A+PTR	server-54-192-175-17.icn55.r.cloudfront.net
54.192.175.17	A	server-54-192-175-17.bom2.r.cloudfront.net
54.192.175.143	A+PTR	server-54-192-175-143.icn55.r.cloudfront.net
54.192.175.143	A	brucon.slack.com
54.192.175.238	A+PTR	server-54-192-175-238.icn55.r.cloudfront.net
54.192.175.238	A	server-54-192-175-238.bom2.r.cloudfront.net