Robtex

Up: 13.33.208.0/24
Can't show all results, try to descend to a more specific CIDR
Down left: 13.33.208.128/26
Down right: 13.33.208.192/26
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
13.33.208.140	A+PTR	server-13-33-208-140.nrt57.r.cloudfront.net
13.33.208.143	A+PTR	server-13-33-208-143.nrt57.r.cloudfront.net
13.33.208.146	A+PTR	server-13-33-208-146.nrt57.r.cloudfront.net
13.33.208.151	A+PTR	server-13-33-208-151.nrt57.r.cloudfront.net
13.33.208.151	A	d7bjbo3t2oywc.cloudfront.net
13.33.208.154	A+PTR	server-13-33-208-154.nrt57.r.cloudfront.net
13.33.208.154	A	static.twitchcdn.net
13.33.208.160	A+PTR	server-13-33-208-160.nrt57.r.cloudfront.net
13.33.208.160	A	dr76kcyo5whbs.cloudfront.net
13.33.208.161	A+PTR	server-13-33-208-161.nrt57.r.cloudfront.net
13.33.208.161	A	d2jrvs8xx3b3n5.cloudfront.net
13.33.208.164	A+PTR	server-13-33-208-164.nrt57.r.cloudfront.net
13.33.208.164	A	dwkw7pxix8u25.cloudfront.net
13.33.208.175	A+PTR	server-13-33-208-175.nrt57.r.cloudfront.net
13.33.208.175	A	au-www.myconnectwise.net
13.33.208.182	A+PTR	server-13-33-208-182.nrt57.r.cloudfront.net
13.33.208.182	A	d29sh3qrvs1a6k.cloudfront.net
13.33.208.185	A+PTR	server-13-33-208-185.nrt57.r.cloudfront.net
13.33.208.185	A	d3hskt5fsj4ixa.cloudfront.net
13.33.208.196	A+PTR	server-13-33-208-196.nrt57.r.cloudfront.net
13.33.208.196	A	m.search.ellotte.com
13.33.208.196	A	m.display.ellotte.com
13.33.208.200	A+PTR	server-13-33-208-200.nrt57.r.cloudfront.net
13.33.208.200	A	d21wlyhffxxqkt.cloudfront.net
13.33.208.220	A+PTR	server-13-33-208-220.nrt57.r.cloudfront.net
13.33.208.231	A+PTR	server-13-33-208-231.nrt57.r.cloudfront.net
13.33.208.231	A	d3u04cb6k5y7x2.cloudfront.net
13.33.208.233	A+PTR	server-13-33-208-233.nrt57.r.cloudfront.net
13.33.208.236	A+PTR	server-13-33-208-236.nrt57.r.cloudfront.net
13.33.208.236	A	d38aldr2v24t43.cloudfront.net
13.33.208.239	A+PTR	server-13-33-208-239.nrt57.r.cloudfront.net
13.33.208.240	A+PTR	server-13-33-208-240.nrt57.r.cloudfront.net
13.33.208.240	A	dtioykqj1u8de.cloudfront.net
13.33.208.243	A+PTR	server-13-33-208-243.nrt57.r.cloudfront.net
13.33.208.243	A	d1elgm1ww0d6wo.cloudfront.net
13.33.208.245	PTR	server-13-33-208-245.nrt57.r.cloudfront.net
13.33.208.245	A	bluebeam.slack.com
13.33.208.245	A	aonlyogt.slack.com
13.33.208.248	A+PTR	server-13-33-208-248.nrt57.r.cloudfront.net
13.33.208.251	A+PTR	server-13-33-208-251.nrt57.r.cloudfront.net
13.33.208.251	A	gizmo.rakuten.tv
13.33.208.252	A+PTR	server-13-33-208-252.nrt57.r.cloudfront.net
13.33.208.252	A	d27cwqlgojh9yd.cloudfront.net
13.33.208.252	A	d1189k4eaaytew.cloudfront.net