Robtex

Up: 157.240.222.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 157.240.222.0/25
Down right: 157.240.222.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
157.240.222.6	PTR	edge-snaptu-http-p1-shv-01-gru1.facebook.com
157.240.222.14	PTR	xx-fbcdn-shv-01-gru1.fbcdn.net
157.240.222.35	A+PTR	edge-star-mini-shv-01-gru1.facebook.com
157.240.222.38	A	z-p3-external-ams3-1.xx.fbcdn.net
157.240.222.38	A	sonar-fsjc.xx.fbcdn.net
157.240.222.38	A	fead1e79380-xrxtbgtw1545309570-sonar.xz.fbcdn.net
157.240.222.60	A+PTR	whatsapp-cdn-shv-01-gru1.fbcdn.net
157.240.222.60	A	media-gru1-1.cdn.whatsapp.net
157.240.222.61	PTR	whatsapp-chatd-edge-shv-01-gru1.facebook.com
157.240.222.62	PTR	edgeray-shv-01-gru1.facebook.com
157.240.222.63	A+PTR	instagram-p3-shv-01-gru1.fbcdn.net
157.240.222.63	A	scontent-gru1-1.cdninstagram.com
157.240.222.174	A+PTR	instagram-p42-shv-01-gru1.fbcdn.net
157.240.222.174	A	z-p42-scontent-gru1-1.cdninstagram.com