Robtex

Up: 13.33.20.0/24
Can't show all results, try to descend to a more specific CIDR
Down left: 13.33.20.0/26
Down right: 13.33.20.64/26
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
13.33.20.8	A+PTR	server-13-33-20-8.arn53.r.cloudfront.net
13.33.20.8	A	dkg703ragzwco.cloudfront.net
13.33.20.9	A+PTR	server-13-33-20-9.arn53.r.cloudfront.net
13.33.20.9	A	d25tycdtx2i4tf.cloudfront.net
13.33.20.10	A+PTR	server-13-33-20-10.arn53.r.cloudfront.net
13.33.20.10	A	d1rcdb12qzvt8u.cloudfront.net
13.33.20.13	A+PTR	server-13-33-20-13.arn53.r.cloudfront.net
13.33.20.13	A	d714rtgdrqw3c.cloudfront.net
13.33.20.17	A+PTR	server-13-33-20-17.arn53.r.cloudfront.net
13.33.20.17	A	dkg703ragzwco.cloudfront.net
13.33.20.19	A+PTR	server-13-33-20-19.arn53.r.cloudfront.net
13.33.20.19	A	www.authors-direct.com
13.33.20.21	A+PTR	server-13-33-20-21.arn53.r.cloudfront.net
13.33.20.25	A+PTR	server-13-33-20-25.arn53.r.cloudfront.net
13.33.20.25	A	d25tycdtx2i4tf.cloudfront.net
13.33.20.28	PTR	server-13-33-20-28.arn53.r.cloudfront.net
13.33.20.28	A	dp2l0al13139v.cloudfront.net
13.33.20.28	A	d30q66e0gm1tof.cloudfront.net
13.33.20.32	A+PTR	server-13-33-20-32.arn53.r.cloudfront.net
13.33.20.32	A	schubert.io
13.33.20.32	A	d213coajl4ejsf.cloudfront.net
13.33.20.34	A+PTR	server-13-33-20-34.arn53.r.cloudfront.net
13.33.20.34	A	d26pc99zf54zzl.cloudfront.net
13.33.20.34	A	d36ezy6gjv3jl7.cloudfront.net
13.33.20.36	A+PTR	server-13-33-20-36.arn53.r.cloudfront.net
13.33.20.36	A	d2fpaqmnhhuptu.cloudfront.net
13.33.20.36	A	knowwhatshot.com
13.33.20.39	A+PTR	server-13-33-20-39.arn53.r.cloudfront.net
13.33.20.39	A	d37q6889lf5037.cloudfront.net
13.33.20.40	A+PTR	server-13-33-20-40.arn53.r.cloudfront.net
13.33.20.40	A	dkg703ragzwco.cloudfront.net
13.33.20.41	PTR	server-13-33-20-41.arn53.r.cloudfront.net
13.33.20.41	A	d213coajl4ejsf.cloudfront.net
13.33.20.49	A+PTR	server-13-33-20-49.arn53.r.cloudfront.net
13.33.20.49	A	www.carnegielearning.io
13.33.20.49	A	carnegielearning.io
13.33.20.51	A+PTR	server-13-33-20-51.arn53.r.cloudfront.net
13.33.20.51	A	knowwhatshot.com
13.33.20.51	A	dq4kmayutbmma.cloudfront.net
13.33.20.52	A+PTR	server-13-33-20-52.arn53.r.cloudfront.net
13.33.20.52	A	knowwhatshot.com
13.33.20.52	A	d2dfcbbwdiknj9.cloudfront.net
13.33.20.53	A+PTR	server-13-33-20-53.arn53.r.cloudfront.net
13.33.20.54	A+PTR	server-13-33-20-54.arn53.r.cloudfront.net
13.33.20.54	A	dq4kmayutbmma.cloudfront.net
13.33.20.55	A+PTR	server-13-33-20-55.arn53.r.cloudfront.net
13.33.20.55	A	d1rcdb12qzvt8u.cloudfront.net
13.33.20.63	A	d25tycdtx2i4tf.cloudfront.net
13.33.20.66	A+PTR	server-13-33-20-66.arn53.r.cloudfront.net
13.33.20.66	A	fantasypollster.com
13.33.20.67	A+PTR	server-13-33-20-67.arn53.r.cloudfront.net
13.33.20.68	A+PTR	server-13-33-20-68.arn53.r.cloudfront.net
13.33.20.69	A+PTR	server-13-33-20-69.arn53.r.cloudfront.net
13.33.20.71	A+PTR	server-13-33-20-71.arn53.r.cloudfront.net
13.33.20.71	A	d2lmhiqsqpiau2.cloudfront.net
13.33.20.72	A+PTR	server-13-33-20-72.arn53.r.cloudfront.net
13.33.20.78	A+PTR	server-13-33-20-78.arn53.r.cloudfront.net
13.33.20.78	A	d2lmhiqsqpiau2.cloudfront.net
13.33.20.79	A+PTR	server-13-33-20-79.arn53.r.cloudfront.net
13.33.20.80	PTR	server-13-33-20-80.arn53.r.cloudfront.net
13.33.20.81	A+PTR	server-13-33-20-81.arn53.r.cloudfront.net
13.33.20.81	A	dkg703ragzwco.cloudfront.net
13.33.20.82	A+PTR	server-13-33-20-82.arn53.r.cloudfront.net
13.33.20.82	A	d37q6889lf5037.cloudfront.net
13.33.20.83	A+PTR	server-13-33-20-83.arn53.r.cloudfront.net
13.33.20.84	A+PTR	server-13-33-20-84.arn53.r.cloudfront.net
13.33.20.84	A	d25tycdtx2i4tf.cloudfront.net
13.33.20.89	A+PTR	server-13-33-20-89.arn53.r.cloudfront.net
13.33.20.89	A	d2fpaqmnhhuptu.cloudfront.net
13.33.20.92	A+PTR	server-13-33-20-92.arn53.r.cloudfront.net
13.33.20.95	A	pechorin.com
13.33.20.96	A+PTR	server-13-33-20-96.arn53.r.cloudfront.net
13.33.20.96	A	d2lmhiqsqpiau2.cloudfront.net
13.33.20.98	A	pechorin.com
13.33.20.100	PTR	server-13-33-20-100.arn53.r.cloudfront.net
13.33.20.112	A+PTR	server-13-33-20-112.arn53.r.cloudfront.net
13.33.20.115	PTR	server-13-33-20-115.arn53.r.cloudfront.net
13.33.20.115	A	d1t3o8jynjo6p2.cloudfront.net
13.33.20.115	A	www.luovu.com
13.33.20.120	A+PTR	server-13-33-20-120.arn53.r.cloudfront.net
13.33.20.120	A	d26xyq5rosl3ui.cloudfront.net
13.33.20.121	A+PTR	server-13-33-20-121.arn53.r.cloudfront.net
13.33.20.121	A	pechorin.com
13.33.20.121	A	d22xpgubo4540z.cloudfront.net
13.33.20.122	A+PTR	server-13-33-20-122.arn53.r.cloudfront.net
13.33.20.122	A	d37q6889lf5037.cloudfront.net
13.33.20.122	A	www.luovu.com
13.33.20.124	A+PTR	server-13-33-20-124.arn53.r.cloudfront.net
13.33.20.124	A	tintomax.com.br
13.33.20.127	A+PTR	server-13-33-20-127.arn53.r.cloudfront.net