Robtex

Up: 13.33.144.0/25
Can't show all results, try to descend to a more specific CIDR
Down left: 13.33.144.0/27
Down right: 13.33.144.32/27
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
13.33.144.5	A	d27ab0aatf3ezk.cloudfront.net
13.33.144.6	PTR	server-13-33-144-6.maa50.r.cloudfront.net
13.33.144.6	A	server-13-33-144-6.sea4.r.cloudfront.net
13.33.144.6	A	rjzqyv8r.micpn.com
13.33.144.7	PTR	server-13-33-144-7.maa50.r.cloudfront.net
13.33.144.7	A	d27ab0aatf3ezk.cloudfront.net
13.33.144.7	A	dnnx3exhrd7to.cloudfront.net
13.33.144.8	PTR	server-13-33-144-8.maa50.r.cloudfront.net
13.33.144.8	A	mis480fall2018.slack.com
13.33.144.8	A	hmx24pl.slack.com
13.33.144.9	A+PTR	server-13-33-144-9.sea4.r.cloudfront.net
13.33.144.9	A	d3szbqbmjep5po.cloudfront.net
13.33.144.10	PTR	server-13-33-144-10.maa50.r.cloudfront.net
13.33.144.10	A	server-13-33-144-10.sea4.r.cloudfront.net
13.33.144.11	A+PTR	server-13-33-144-11.sea4.r.cloudfront.net
13.33.144.11	A	disot5q4b9qzh.cloudfront.net
13.33.144.13	PTR	server-13-33-144-13.maa50.r.cloudfront.net
13.33.144.13	A	c70966u7.micpn.com
13.33.144.13	A	server-13-33-144-13.sea4.r.cloudfront.net
13.33.144.14	A+PTR	server-13-33-144-14.sea4.r.cloudfront.net
13.33.144.14	A	consent-st.trustarc.com
13.33.144.15	PTR	server-13-33-144-15.maa50.r.cloudfront.net
13.33.144.15	A	milanitaly.ca
13.33.144.15	A	seattlesportsinsider.slack.com
13.33.144.18	PTR	server-13-33-144-18.maa50.r.cloudfront.net
13.33.144.18	A	d2asehc98542ii.cloudfront.net
13.33.144.18	A	server-13-33-144-18.sea4.r.cloudfront.net
13.33.144.22	PTR	server-13-33-144-22.sea4.r.cloudfront.net
13.33.144.22	A	diyiocwpft7ha.cloudfront.net
13.33.144.22	A	d114gv9pdgov7v.cloudfront.net
13.33.144.24	PTR	server-13-33-144-24.maa50.r.cloudfront.net
13.33.144.24	A	zda9ghbv.micpn.com
13.33.144.24	A	y8fubtle.micpn.com
13.33.144.25	A	developersitalia.slack.com
13.33.144.25	A	cloudsecurityalliance.slack.com
13.33.144.25	A	laalacenademalaga.slack.com
13.33.144.26	A	goodnotes.com
13.33.144.27	A+PTR	server-13-33-144-27.sea4.r.cloudfront.net
13.33.144.27	A	524u8ztu.micpn.com
13.33.144.28	A+PTR	server-13-33-144-28.sea4.r.cloudfront.net
13.33.144.28	A	kpmluxcb.micpn.com
13.33.144.32	PTR	server-13-33-144-32.sea4.r.cloudfront.net
13.33.144.32	A	p97biaob.micpn.com
13.33.144.32	A	k6e3wbmb.micpn.com
13.33.144.33	A	reckonfitnezs.com
13.33.144.34	A	goodnotes.com
13.33.144.35	A	reckonfitnezs.com
13.33.144.36	A+PTR	server-13-33-144-36.sea4.r.cloudfront.net
13.33.144.36	A	opensignal.slack.com
13.33.144.36	A	cybarworks.slack.com
13.33.144.37	A	vc7bodn8.micpn.com
13.33.144.38	PTR	server-13-33-144-38.maa50.r.cloudfront.net
13.33.144.38	A	d2rtp6z6m185r8.cloudfront.net
13.33.144.38	A	iot.us-east-1.amazonaws.com
13.33.144.40	A	goodnotes.com
13.33.144.41	A+PTR	server-13-33-144-41.maa50.r.cloudfront.net
13.33.144.41	A	server-13-33-144-41.sea4.r.cloudfront.net
13.33.144.41	A	www.tbhtime.com
13.33.144.43	A	d114gv9pdgov7v.cloudfront.net
13.33.144.44	PTR	server-13-33-144-44.maa50.r.cloudfront.net
13.33.144.44	A	vimojo.slack.com
13.33.144.44	A	s10c.slack.com
13.33.144.45	A	beddit.com
13.33.144.47	A+PTR	server-13-33-144-47.sea4.r.cloudfront.net
13.33.144.47	A	juhm5eps.micpn.com
13.33.144.47	A	gnqz2gjy.micpn.com
13.33.144.48	A	d2rtp6z6m185r8.cloudfront.net
13.33.144.49	A+PTR	server-13-33-144-49.sea4.r.cloudfront.net
13.33.144.50	A	acronis-marketing.slack.com
13.33.144.50	A	fcoinofficial.slack.com
13.33.144.50	A	agilephilly.slack.com
13.33.144.52	PTR	server-13-33-144-52.maa50.r.cloudfront.net
13.33.144.52	A	betab5po.micpn.com
13.33.144.52	A	basjchez.micpn.com
13.33.144.53	A+PTR	server-13-33-144-53.sea4.r.cloudfront.net
13.33.144.53	A	conekt-hair.com
13.33.144.53	A	deephackathon.slack.com
13.33.144.55	A	laalpatti.slack.com
13.33.144.55	A	phoenixwi.slack.com
13.33.144.55	A	vitalize.slack.com
13.33.144.56	A	marshallsfloristredding.com
13.33.144.56	A	genmillshelpmechoose.com
13.33.144.58	PTR	server-13-33-144-58.maa50.r.cloudfront.net
13.33.144.58	A	mxxzcmb1.micpn.com
13.33.144.58	A	pqdzshn1.micpn.com
13.33.144.59	PTR	server-13-33-144-59.maa50.r.cloudfront.net
13.33.144.59	A	d2bqz8smqx38k8.cloudfront.net
13.33.144.59	A	server-13-33-144-59.sea4.r.cloudfront.net
13.33.144.61	A	milanitaly.ca
13.33.144.62	A	beddit.com