Robtex

Up: 54.192.228.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 54.192.228.0/25
Down right: 54.192.228.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
54.192.228.6	A+PTR	server-54-192-228-6.waw50.r.cloudfront.net
54.192.228.6	A	www.feedthepig.org
54.192.228.25	A+PTR	server-54-192-228-25.waw50.r.cloudfront.net
54.192.228.57	A+PTR	server-54-192-228-57.waw50.r.cloudfront.net
54.192.228.60	A+PTR	server-54-192-228-60.waw50.r.cloudfront.net
54.192.228.60	A	mail.stellarex.com
54.192.228.60	A	d2sxshqtbf0etp.cloudfront.net
54.192.228.63	A+PTR	server-54-192-228-63.waw50.r.cloudfront.net
54.192.228.73	PTR	server-54-192-228-73.waw50.r.cloudfront.net
54.192.228.73	A	wfpscripts.webspectator.com
54.192.228.82	A	d3orxtnkvjklwn.cloudfront.net
54.192.228.98	A	www.stephenkinglibrary.com
54.192.228.103	PTR	server-54-192-228-103.waw50.r.cloudfront.net
54.192.228.103	A	www.angloamerican.co.za
54.192.228.103	A	media.tivi.fi
54.192.228.106	A+PTR	server-54-192-228-106.waw50.r.cloudfront.net
54.192.228.106	A	d1obj5x56cbqky.cloudfront.net
54.192.228.120	A+PTR	server-54-192-228-120.waw50.r.cloudfront.net
54.192.228.136	A+PTR	server-54-192-228-136.waw50.r.cloudfront.net
54.192.228.162	A+PTR	server-54-192-228-162.waw50.r.cloudfront.net
54.192.228.165	A+PTR	server-54-192-228-165.waw50.r.cloudfront.net
54.192.228.166	A+PTR	server-54-192-228-166.waw50.r.cloudfront.net
54.192.228.175	A	d22zovmwmki58e.cloudfront.net
54.192.228.208	A	sfbc.com
54.192.228.211	PTR	server-54-192-228-211.waw50.r.cloudfront.net
54.192.228.211	A	addapp.io
54.192.228.219	A+PTR	server-54-192-228-219.waw50.r.cloudfront.net
54.192.228.248	A+PTR	server-54-192-228-248.waw50.r.cloudfront.net