Robtex

Up: 157.240.24.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 157.240.24.0/25
Down right: 157.240.24.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
157.240.24.1	PTR	livestream-edgetee-upload-shv-01-hou1.facebook.com
157.240.24.1	A	edgetee-upload-sin2-1.xx.fbcdn.net
157.240.24.1	A	livestream-edgetee-upload-shv-01-sin2.facebook.com
157.240.24.3	PTR	livestream-fbvp-edgetee-upload-shv-01-sin2.facebook.com
157.240.24.3	A	facebok.de
157.240.24.3	A	facebook.gy
157.240.24.9	PTR	edge-atlas-shv-01-sin2.facebook.com
157.240.24.12	A+PTR	edge-mqtt-shv-01-sin2.facebook.com
157.240.24.14	A	atlas.xx.fbcdn.net
157.240.24.16	A	mqtt-latest.c10r.facebook.com
157.240.24.17	PTR	edge-msgr-latest-shv-01-hou1.facebook.com
157.240.24.19	A+PTR	edge-snaptu-http-p1-shv-01-sin2.facebook.com
157.240.24.20	A	edge-star-shv-01-sin2.facebook.com
157.240.24.23	A+PTR	edge-video-shv-01-sin2.fbcdn.net
157.240.24.23	A	video-sin2-1.xx.fbcdn.net
157.240.24.31	A+PTR	xx-fbcdn-shv-01-sin2.fbcdn.net
157.240.24.31	A	scontent-sin2-1.xx.fbcdn.net
157.240.24.32	A+PTR	edge-snaptu-http-mini-shv-01-sin2.facebook.com
157.240.24.33	PTR	edge-fblite-tcp-mini-shv-01-hou1.facebook.com
157.240.24.33	A	www.f8a511ebf80-vepkcnew1537928447-sonar.xz.fbcdn.net
157.240.24.33	A	f2226bc1f80-xjrvfxgt1542824845-sonar.xx.fbcdn.net
157.240.24.34	A+PTR	edge-mqtt-mini-shv-01-sin2.facebook.com
157.240.24.35	A+PTR	edge-star-mini-shv-01-hou1.facebook.com
157.240.24.35	A	edge-star-mini-shv-01-sin2.facebook.com
157.240.24.36	A	internet.org
157.240.24.36	A	expresswifi.com
157.240.24.37	PTR	iorg-fba-edge-shv-01-hou1.facebook.com
157.240.24.37	A	z-m-scontent-sin2-1.xx.fbcdn.net
157.240.24.37	A	edge-z-m-mini-shv-01-sin2.facebook.com
157.240.24.38	A	f9467e8ed80k2kgxaiq-gfozboao1511938149-sonar.xx.fbcdn.net
157.240.24.38	A	fef50f85380kdnm7vsq-iwxwupkr1497318224-sonar.xz.fbcdn.net
157.240.24.38	A	f71e7513180-vuaifdlr1538130563-sonar.xz.fbcdn.net
157.240.24.48	PTR	edge-mws-shv-01-hou1.facebook.com
157.240.24.51	A+PTR	edge-z-p3-shv-01-sin2.facebook.com
157.240.24.51	A	z-p3-scontent-sin2-1.xx.fbcdn.net
157.240.24.52	A+PTR	edgeray-shv-01-sin2.facebook.com
157.240.24.54	A	whatsapp-cdn-shv-01-sin2.fbcdn.net
157.240.24.54	A	media-sin2-1.cdn.whatsapp.net
157.240.24.54	A	wbbb65a4c1kqkoav7b-gm3temzxg43tgojr.snr.whatsapp.net
157.240.24.55	PTR	edgeray-turn-msgr-shv-01-hou1.facebook.com
157.240.24.55	A	whatsapp-chatd-edge-shv-01-sin2.facebook.com
157.240.24.60	PTR	whatsapp-cdn-shv-01-hou1.fbcdn.net
157.240.24.63	A+PTR	instagram-p3-shv-01-hou1.fbcdn.net
157.240.24.63	A	instagram-p3-shv-01-sin2.fbcdn.net
157.240.24.63	A	scontent-b-sin.cdninstagram.com
157.240.24.170	A	mqtt-p4.c10r.facebook.com
157.240.24.171	A+PTR	edge-snaptu-http-p4-shv-01-sin2.facebook.com
157.240.24.174	A+PTR	instagram-p42-shv-01-sin2.fbcdn.net