Robtex

Up: 13.226.24.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 13.226.28.0/23
Down right: 13.226.30.0/23

IP	Type	Hostname
13.226.29.16	A	api.fanduel.com
13.226.29.20	A+PTR	server-13-226-29-20.ewr53.r.cloudfront.net
13.226.29.32	A	gffg.com
13.226.29.58	A+PTR	server-13-226-29-58.ewr53.r.cloudfront.net
13.226.29.78	A	api.fanduel.com
13.226.29.84	A	gffg.com
13.226.29.85	A	gffg.com
13.226.29.100	A	api.fanduel.com
13.226.29.114	A	api.fanduel.com
13.226.29.118	A	gffg.com
13.226.29.121	PTR	server-13-226-29-121.ewr53.r.cloudfront.net
13.226.30.13	PTR	server-13-226-30-13.ewr53.r.cloudfront.net
13.226.30.71	A+PTR	server-13-226-30-71.ewr53.r.cloudfront.net
13.226.31.7	PTR	server-13-226-31-7.ewr53.r.cloudfront.net
13.226.31.7	A	d11depkj6bh0w3.cloudfront.net
13.226.31.8	A	d11depkj6bh0w3.cloudfront.net
13.226.31.10	A	d3hhy1dpld8bj5.cloudfront.net
13.226.31.14	A	d3hhy1dpld8bj5.cloudfront.net
13.226.31.18	A	d3hhy1dpld8bj5.cloudfront.net
13.226.31.20	A	socialwork.simmons.edu
13.226.31.26	A+PTR	server-13-226-31-26.ewr53.r.cloudfront.net
13.226.31.26	A	socialwork.simmons.edu
13.226.31.32	PTR	server-13-226-31-32.ewr53.r.cloudfront.net
13.226.31.36	A+PTR	server-13-226-31-36.ewr53.r.cloudfront.net
13.226.31.38	A	d11depkj6bh0w3.cloudfront.net
13.226.31.42	PTR	server-13-226-31-42.ewr53.r.cloudfront.net
13.226.31.52	A	d11depkj6bh0w3.cloudfront.net
13.226.31.65	A	socialwork.simmons.edu
13.226.31.66	A+PTR	server-13-226-31-66.ewr53.r.cloudfront.net
13.226.31.93	A+PTR	server-13-226-31-93.ewr53.r.cloudfront.net
13.226.31.95	A+PTR	server-13-226-31-95.ewr53.r.cloudfront.net
13.226.31.107	A+PTR	server-13-226-31-107.ewr53.r.cloudfront.net
13.226.31.116	A	socialwork.simmons.edu
13.226.31.123	A	d3hhy1dpld8bj5.cloudfront.net
13.226.31.128	PTR	server-13-226-31-128.ewr53.r.cloudfront.net