Robtex

Up: 31.13.78.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 31.13.78.0/25
Down right: 31.13.78.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
31.13.78.1	PTR	netprobe-bgp-01-sit4.facebook.com
31.13.78.2	A	edgetee-sit4-1.xx.fbcdn.net
31.13.78.3	PTR	edge-star-shv-01-akl1.facebook.com
31.13.78.3	A	atlas.xx.fbcdn.net
31.13.78.3	A	edge-atlas-shv-01-sit4.facebook.com
31.13.78.4	PTR	edge-fblite-tcp-p1-shv-01-akl1.facebook.com
31.13.78.4	A	extern.c10r.facebook.com
31.13.78.4	A	edge-extern-shv-01-sit4.facebook.com
31.13.78.5	A	edge-cryptossl-shv-01-sit4.facebook.com
31.13.78.7	A	freeway-pp-shv-01-sit4.facebook.com
31.13.78.8	A	edge-mqtt-shv-01-sit4.facebook.com
31.13.78.9	A	latest.c10r.facebook.com
31.13.78.10	A	secure.c10r.facebook.com
31.13.78.10	A	edge-secure-shv-01-sit4.facebook.com
31.13.78.11	PTR	edge-latest-shv-01-akl1.facebook.com
31.13.78.11	A	snaptu-p1.c10r.facebook.com
31.13.78.11	A	edge-snaptu-http-p1-shv-01-sit4.facebook.com
31.13.78.13	PTR	xx-fbcdn-shv-01-akl1.fbcdn.net
31.13.78.13	A	atlasin-stream.com
31.13.78.13	A	fhome.me
31.13.78.14	A	edge-video-shv-01-sit4.fbcdn.net
31.13.78.14	A	video-sit.xx.fbcdn.net
31.13.78.14	A	video-sit4-1.xx.fbcdn.net
31.13.78.17	A	httpscontent-lax3-1.xx.fbcdn.net
31.13.78.17	A	z-p3-scontent-sin1-1.xx.fbcdn.net
31.13.78.17	A	f352291de80kdno4pyq-stzhaqur1501633264-sonar.xz.fbcdn.net
31.13.78.18	A	edge-livestream-360-upload-shv-01-sit4.facebook.com
31.13.78.19	A+PTR	edge-mqtt-shv-01-akl1.facebook.com
31.13.78.21	A	msgr-latest.c10r.facebook.com
31.13.78.21	A	edge-livestream-api-upload-shv-01-sit4.facebook.com
31.13.78.25	A	atlas-pp-shv-01-sit4.facebook.com
31.13.78.27	A	edgetee-upload.xx.fbcdn.net
31.13.78.28	A	edge-shortwave-shv-01-sit4.facebook.com
31.13.78.29	A	livestream-fblive-upload-shv-01-sit4.facebook.com
31.13.78.30	A	intern-managed-client.c10r.facebook.com
31.13.78.31	A	fbvp-staging.c10r.facebook.com
31.13.78.32	PTR	instagram-p15-shv-01-akl1.fbcdn.net
31.13.78.32	A	mqtt-mini.c10r.facebook.com
31.13.78.32	A	edge-mqtt-mini-shv-01-sit4.facebook.com
31.13.78.33	A+PTR	edge-snaptu-http-mini-shv-01-sit4.facebook.com
31.13.78.34	A	f31307a8280kiirtpci-zlezmsna1484586445-sonar.xz.fbcdn.net
31.13.78.34	A	fee0f52f080kdno4pyq-kplnkthl1505192989-sonar.xz.fbcdn.net
31.13.78.34	A	ff8f2f98180kdno4pyq-vwytimxt1486696055-sonar.xx.fbcdn.net
31.13.78.35	PTR	edge-star-mini-shv-01-akl1.facebook.com
31.13.78.35	A	www.xuakiamot.net
31.13.78.35	A	robertredhome.tk
31.13.78.36	A	freeb6.com
31.13.78.36	A	freebasix.com
31.13.78.36	A	freebasik.com
31.13.78.37	A	z-p15-scontent.cdninstagram.com
31.13.78.37	A	edge-z-mini-shv-01-sit4.facebook.com
31.13.78.37	A	xn--fiqs8s7zfhxek67b1uuwsj.com
31.13.78.38	PTR	edge-sonar-mini-shv-01-akl1.fbcdn.net
31.13.78.38	A	sonar-akl1-1.xx.fbcdn.net
31.13.78.38	A	z-m-scontent-sit4-1.xx.fbcdn.net
31.13.78.39	A	iorg-fba-edge-shv-01-sit4.facebook.com
31.13.78.41	A	edge-snaptu-http-p2-shv-01-sit4.facebook.com
31.13.78.41	A	snaptu-p2.c10r.facebook.com
31.13.78.42	A	z-1-external-sit4-1.xx.fbcdn.net
31.13.78.42	A	z-1-video-sit.xx.fbcdn.net
31.13.78.42	A	z-1-scontent.xx.fbcdn.net
31.13.78.48	PTR	oculus-pp-shv-01-sit4.fbcdn.net
31.13.78.49	A	oculusstorystudio.com
31.13.78.50	PTR	edge-cg-rtc-shv-01-akl1.facebook.com
31.13.78.50	A	z-p3-scontent-sit.xx.fbcdn.net
31.13.78.50	A	z-p3-video-sit4-1.xx.fbcdn.net
31.13.78.51	A+PTR	edgeray-shv-01-sit4.facebook.com
31.13.78.52	A	scontent-b.cdninstagram.com
31.13.78.52	A	instagram-p3-shv-01-sit4.fbcdn.net
31.13.78.52	A	scontent-sit4-1.cdninstagram.com
31.13.78.53	A	w6b2550941kgle4fyb-gi2teojtgeydombu.snr.whatsapp.net
31.13.78.53	A	media-sit4-1.cdn.whatsapp.net
31.13.78.54	A+PTR	edge-turnservice-shv-01-sit4.facebook.com
31.13.78.55	A	whatsapp-chatd-edge-shv-01-sit4.facebook.com
31.13.78.56	A	xwf-p3.c10r.facebook.com
31.13.78.59	PTR	dohproxy-mobile-shv-01-akl1.facebook.com
31.13.78.60	A	nw6fead70c1ksdm2c5d-gizdonrshe2tqnb.snr.whatsapp.net
31.13.78.65	A	039919.com
31.13.78.65	A	cn9444.com
31.13.78.65	A	3345z.com
31.13.78.66	A	tyc44555.com
31.13.78.66	A	sd1919.com
31.13.78.66	A	1381919.com
31.13.78.69	PTR	edge-liverail-shv-05-iad1.facebook.com
31.13.78.71	PTR	xx-fbcdn-shv-05-iad1.fbcdn.net
31.13.78.170	A	mqtt-p4.c10r.facebook.com
31.13.78.172	A	z-p4-scontent.cdninstagram.com
31.13.78.172	A	instagram-p4-shv-01-sit4.fbcdn.net
31.13.78.173	PTR	edge-ig-mqtt-p4-shv-01-akl1.facebook.com
31.13.78.173	A	edge-ig-mqtt-p4-shv-01-sit4.facebook.com
31.13.78.173	A	mqtt-ig-p4.c10r.facebook.com
31.13.78.174	PTR	instagram-p42-shv-01-akl1.fbcdn.net
31.13.78.174	A	z-p42-scontent.cdninstagram.com
31.13.78.174	A	instagram-p42-shv-01-sit4.fbcdn.net