Robtex

Up: 157.240.12.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 157.240.13.0/25
Down right: 157.240.13.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
157.240.13.1	PTR	edge-dgw-shv-02-sin6.facebook.com
157.240.13.1	A	edge-services-shv-02-sin6.facebook.com
157.240.13.4	A+PTR	livestream-edgetee-upload-shv-02-sin6.facebook.com
157.240.13.4	A	edgetee-upload-sin6-2.xx.fbcdn.net
157.240.13.6	A+PTR	edge-atlas-shv-02-sin6.facebook.com
157.240.13.7	A+PTR	edge-stun-shv-02-sin6.facebook.com
157.240.13.10	A+PTR	edge-mqtt-shv-02-sin6.facebook.com
157.240.13.13	A	edge-snaptu-http-p1-shv-02-sin6.facebook.com
157.240.13.14	A+PTR	edge-star-shv-02-sin6.facebook.com
157.240.13.14	A	www.khoquachuatinhtienty.com
157.240.13.15	A+PTR	edge-video-shv-02-sin6.fbcdn.net
157.240.13.15	A	live.indostreamingtv.com
157.240.13.15	A	video-a-sin.xx.fbcdn.net
157.240.13.19	A+PTR	xx-fbcdn-shv-02-sin6.fbcdn.net
157.240.13.19	A	fdb29204980knsvybjq-pvlnzbqe1467636422-sonar.xx.fbcdn.net
157.240.13.19	A	f5d2fa83780kmfv3kjy-mjebwygm1496569608-sonar.xz.fbcdn.net
157.240.13.25	A+PTR	netprobe-bgp-02-sin6.facebook.com
157.240.13.29	A+PTR	intern-managed-client-shv-02-sin6.facebook.com
157.240.13.31	PTR	livestream-fbvp-edgetee-upload-shv-02-sin6.facebook.com
157.240.13.31	A	fbvp-edgetee-upload-sin6-2.xx.fbcdn.net
157.240.13.32	A+PTR	edge-mqtt-mini-shv-02-sin6.facebook.com
157.240.13.33	A+PTR	edge-snaptu-http-mini-shv-02-sin6.facebook.com
157.240.13.34	PTR	edge-sonar-mini-shv-02-sin6.fbcdn.net
157.240.13.34	A	f410a63e780kh2nlwaq-tebyctec1522732460-sonar.xx.fbcdn.net
157.240.13.34	A	fc3a57dbb80k2kgxaiq-zvbfdxem1495774997-sonar.xz.fbcdn.net
157.240.13.35	A+PTR	edge-star-mini-shv-02-sin6.facebook.com
157.240.13.35	A	netcanggaming.com
157.240.13.36	A+PTR	edge-z-m-mini-shv-02-sin6.facebook.com
157.240.13.37	A+PTR	instagram-p15-shv-02-sin6.fbcdn.net
157.240.13.38	PTR	edge-fblite-tcp-mini-shv-02-sin6.facebook.com
157.240.13.38	A	edge-star-z-mini-shv-02-sin6.facebook.com
157.240.13.38	A	wmcp8.com
157.240.13.39	A+PTR	iorg-fba-edge-shv-02-sin6.facebook.com
157.240.13.41	A	z-1-external-sin6-2.xx.fbcdn.net
157.240.13.41	A	edge-z-1-p2-shv-02-sin6.facebook.com
157.240.13.41	A	z-1-scontent-sin6-2.xx.fbcdn.net
157.240.13.48	A+PTR	edge-turnservice-shv-02-sin6.facebook.com
157.240.13.50	A+PTR	edge-z-p3-shv-02-sin6.facebook.com
157.240.13.50	A	z-p3-scontent-sin6-2.xx.fbcdn.net
157.240.13.50	A	z-p3-video-sin6-2.xx.fbcdn.net
157.240.13.51	A+PTR	edgeray-shv-02-sin6.facebook.com
157.240.13.52	A+PTR	instagram-p3-shv-02-sin6.fbcdn.net
157.240.13.52	A	scontent-sin6-2.cdninstagram.com
157.240.13.52	A	scontent-b-sin.cdninstagram.com
157.240.13.53	A+PTR	oculus-pp-shv-02-sin6.fbcdn.net
157.240.13.54	A+PTR	whatsapp-cdn-shv-02-sin6.fbcdn.net
157.240.13.54	A	media-sin6-2.cdn.whatsapp.net
157.240.13.54	A	www.snr.whatsapp.net
157.240.13.55	A+PTR	whatsapp-chatd-edge-shv-02-sin6.facebook.com
157.240.13.171	A+PTR	edge-snaptu-http-p4-shv-02-sin6.facebook.com
157.240.13.174	A+PTR	instagram-p42-shv-02-sin6.fbcdn.net
157.240.13.192	PTR	fbonly-test-bgp-02-sin6.facebook.com