Robtex

Up: 157.240.24.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 157.240.25.0/25
Down right: 157.240.25.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
157.240.25.1	PTR	livestream-edgetee-upload-shv-02-sin2.facebook.com
157.240.25.1	A	edgetee-upload-sin2-2.xx.fbcdn.net
157.240.25.3	A	livestream-fbvp-edgetee-upload-shv-02-sin2.facebook.com
157.240.25.3	A	fbvp-edgetee-upload-sin2-2.xx.fbcdn.net
157.240.25.9	A+PTR	edge-atlas-shv-02-sin2.facebook.com
157.240.25.10	PTR	edge-extern-shv-02-sin2.facebook.com
157.240.25.12	PTR	edge-fblite-ws-p1-shv-02-qro1.facebook.com
157.240.25.12	A	edge-mqtt-shv-02-sin2.facebook.com
157.240.25.19	PTR	edge-mqtt-shv-02-qro1.facebook.com
157.240.25.19	A	edge-snaptu-http-p1-shv-02-sin2.facebook.com
157.240.25.20	A+PTR	edge-video-shv-02-qro1.fbcdn.net
157.240.25.20	A	edge-star-shv-02-sin2.facebook.com
157.240.25.21	A+PTR	edge-stun-shv-02-sin2.facebook.com
157.240.25.23	A+PTR	edge-video-shv-02-sin2.fbcdn.net
157.240.25.23	A	video-sin2-2.xx.fbcdn.net
157.240.25.31	A	scontent-sin2-2.xx.fbcdn.net
157.240.25.31	A	xx-fbcdn-shv-02-sin2.fbcdn.net
157.240.25.32	PTR	instagram-p15-shv-02-qro1.fbcdn.net
157.240.25.33	A	f1cb218cf80-syfzpwdz1548421412-sonar.xz.fbcdn.net
157.240.25.33	A	ffdb0f27780-ejwqnrru1541520670-sonar.xx.fbcdn.net
157.240.25.33	A	edge-sonar-mini-shv-02-sin2.fbcdn.net
157.240.25.34	PTR	edge-mqtt-mini-shv-02-qro1.facebook.com
157.240.25.34	A	edge-mqtt-mini-shv-02-sin2.facebook.com
157.240.25.35	A+PTR	edge-star-mini-shv-02-sin2.facebook.com
157.240.25.37	PTR	whatsapp-chatd-msgr-mini-edge-shv-02-qro1.facebook.com
157.240.25.37	A	edge-z-m-mini-shv-02-sin2.facebook.com
157.240.25.37	A	z-m-scontent-sin2-2.xx.fbcdn.net
157.240.25.48	A	edge-turnservice-shv-02-sin2.facebook.com
157.240.25.51	A+PTR	edge-z-p3-shv-02-sin2.facebook.com
157.240.25.51	A	z-p3-scontent-sin2-2.xx.fbcdn.net
157.240.25.52	A+PTR	edgeray-shv-02-sin2.facebook.com
157.240.25.54	A+PTR	whatsapp-cdn-shv-02-sin2.fbcdn.net
157.240.25.54	A	w361293341k3dnn4da-gqydambrgu2tcmrz.snr.whatsapp.net
157.240.25.54	A	media-sin2-2.cdn.whatsapp.net
157.240.25.55	A	whatsapp-chatd-edge-shv-02-sin2.facebook.com
157.240.25.61	PTR	whatsapp-chatd-edge-shv-02-qro1.facebook.com
157.240.25.62	PTR	edgeray-shv-02-qro1.facebook.com
157.240.25.63	A+PTR	instagram-p3-shv-02-sin2.fbcdn.net
157.240.25.63	A	scontent-sin2-2.cdninstagram.com
157.240.25.174	PTR	instagram-p42-shv-02-sin2.fbcdn.net