Robtex

Up: 157.240.216.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 157.240.216.0/25
Down right: 157.240.216.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
157.240.216.1	A+PTR	livestream-edgetee-upload-shv-01-for1.facebook.com
157.240.216.14	A+PTR	xx-fbcdn-shv-01-for1.fbcdn.net
157.240.216.14	A	scontent-for1-1.xx.fbcdn.net
157.240.216.38	A+PTR	edge-sonar-mini-shv-01-for1.fbcdn.net
157.240.216.38	A	sonar-for.xx.fbcdn.net
157.240.216.38	A	f3e6fc3c580kiirtpci-ocinivzx1487192746-sonar.xz.fbcdn.net
157.240.216.60	PTR	whatsapp-cdn-shv-01-for1.fbcdn.net
157.240.216.63	A+PTR	instagram-p3-shv-01-for1.fbcdn.net
157.240.216.63	A	scontent-for1-1.cdninstagram.com