Robtex

Up: 31.13.70.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 31.13.71.0/25
Down right: 31.13.71.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
31.13.71.1	A+PTR	edge-star-shv-01-lga3.facebook.com
31.13.71.1	A	ko-kr.tr-tr.prod.facebook.com
31.13.71.1	A	en-gb.nl-nl.en-gb.fbjs.facebook.com
31.13.71.2	A+PTR	edge-atlas-shv-01-lga3.facebook.com
31.13.71.3	A+PTR	edge-mqtt-shv-01-lga3.facebook.com
31.13.71.3	A	mqtt.c10r.facebook.com
31.13.71.4	A+PTR	edge-z-shv-01-lga1.facebook.com
31.13.71.5	PTR	edge-fblite-ws-p1-shv-01-lga3.facebook.com
31.13.71.5	A	netprobe-bgp-01-lga3.facebook.com
31.13.71.6	PTR	edge-z-m-shv-01-lga1.facebook.com
31.13.71.6	A	www.bete.beta.facebook.com
31.13.71.6	A	www.beta.beta.beta.beta.beta.beta.beta.beta.beta.beta.facebook.com
31.13.71.7	PTR	xx-fbcdn-shv-01-lga3.fbcdn.net
31.13.71.7	A	rycpw.com
31.13.71.7	A	cp16919.com
31.13.71.8	A	fbvp-edgetee-upload-lga3-1.xx.fbcdn.net
31.13.71.9	PTR	secure-edge-latest-shv-01-lga3.facebook.com
31.13.71.9	A	z-m-fbcdn-shv-01-lga1.fbcdn.net
31.13.71.10	A+PTR	edge-mqtt-latest-shv-01-lga3.facebook.com
31.13.71.10	A	instagram-shv-01-lga1.fbcdn.net
31.13.71.11	A+PTR	edge-shortwave-ws-shv-01-lga3.facebook.com
31.13.71.11	A	scontent-01.xx.fbcdn.net
31.13.71.11	A	edge-sonar-shv-01-lga1.fbcdn.net
31.13.71.13	A+PTR	edge-snaptu-http-p1-shv-01-lga3.facebook.com
31.13.71.14	A+PTR	edge-video-shv-01-lga3.fbcdn.net
31.13.71.14	A	video-b-lga.xx.fbcdn.net
31.13.71.14	A	video-lga3-1.xx.fbcdn.net
31.13.71.16	A+PTR	livestream-edgetee-upload-shv-01-lga3.facebook.com
31.13.71.16	A	bjswsj.com
31.13.71.16	A	yzdx8.com
31.13.71.17	PTR	edge-star-shv-02-lga1.facebook.com
31.13.71.17	A	gvlibrary.com
31.13.71.17	A	xn--rhty6s94fh23c.com
31.13.71.18	PTR	edge-atlas-shv-02-lga1.facebook.com
31.13.71.18	A	pushnotifs-pp-shv-01-lga3.facebook.com
31.13.71.19	A+PTR	edge-extern-shv-01-lga3.facebook.com
31.13.71.19	A	extern.c10r.facebook.com
31.13.71.20	A	edgetee-lga.xx.fbcdn.net
31.13.71.20	A	livestream-edgetee-shv-01-lga3.facebook.com
31.13.71.20	A	edgetee-lga3-1.xx.fbcdn.net
31.13.71.21	A	edge-z-p1-shv-01-lga3.facebook.com
31.13.71.23	PTR	edge-msgr-latest-shv-01-lga3.facebook.com
31.13.71.23	A	8323c.com
31.13.71.23	A	bu919.com
31.13.71.24	PTR	edge-z-1-shv-02-lga1.facebook.com
31.13.71.25	A	edge-resolver002-bgp-01-lga3.facebook.com
31.13.71.27	A+PTR	intern-managed-client-shv-01-lga3.facebook.com
31.13.71.28	A+PTR	edge-shortwave-shv-01-lga3.facebook.com
31.13.71.32	A+PTR	instagram-p15-shv-01-lga3.fbcdn.net
31.13.71.32	A	edge-z-mini-shv-01-lga3.facebook.com
31.13.71.33	A+PTR	edge-snaptu-http-mini-shv-01-lga3.facebook.com
31.13.71.34	A+PTR	edge-mqtt-mini-shv-01-lga3.facebook.com
31.13.71.34	A	mqtt-mini.c10r.facebook.com
31.13.71.35	PTR	edge-sonar-mini-shv-01-lga3.fbcdn.net
31.13.71.35	A	f583d670b80-xyqyogbv1540517604-sonar.xx.fbcdn.net
31.13.71.35	A	fee0f52f080kdno4pyq-kplnkthl1505192989-sonar.xz.fbcdn.net
31.13.71.36	A+PTR	edge-star-mini-shv-01-lga3.facebook.com
31.13.71.37	A+PTR	edge-z-m-mini-shv-01-lga3.facebook.com
31.13.71.37	A	freeb6.com
31.13.71.37	A	freebasix.com
31.13.71.38	A+PTR	edge-star-z-mini-shv-01-lga3.facebook.com
31.13.71.38	A	z-m-fbcdn-mini-shv-01-lga3.fbcdn.net
31.13.71.40	A	hotmail.makemoney2makemoney.tumblr.com.cn
31.13.71.40	A	z-1-external-lga3-1.xx.fbcdn.net
31.13.71.40	A	xmwsj.com
31.13.71.41	A	snaptu-p2.c10r.facebook.com
31.13.71.48	A+PTR	edgeray-shv-01-lga3.facebook.com
31.13.71.48	A	edgeray-shv-01-lga1.facebook.com
31.13.71.49	A+PTR	whatsapp-cdn-shv-01-lga3.fbcdn.net
31.13.71.49	A	w638914471khydpind-gm4tknbshe3damzu.snr.whatsapp.net
31.13.71.49	A	sonar-lga.cdn.whatsapp.net
31.13.71.50	A+PTR	whatsapp-chatd-edge-shv-01-lga3.facebook.com
31.13.71.51	A+PTR	edge-oculus-shv-01-lga3.fbcdn.net
31.13.71.51	A	oculusrift.com
31.13.71.52	A+PTR	instagram-p3-shv-01-lga3.fbcdn.net
31.13.71.52	A	scontent-lga.cdninstagram.com
31.13.71.52	A	scontent-lga3-1.cdninstagram.com
31.13.71.53	A+PTR	edge-z-p3-shv-01-lga3.facebook.com
31.13.71.53	A	z-p3-scontent-lga.xx.fbcdn.net
31.13.71.53	A	z-p3-video-lga.xx.fbcdn.net
31.13.71.54	A+PTR	edge-turnservice-shv-01-lga3.facebook.com
31.13.71.55	PTR	instagram-pp-shv-01-lga3.fbcdn.net
31.13.71.56	A+PTR	edge-xwf-p3-shv-01-lga3.facebook.com
31.13.71.56	A	xwf-p3.c10r.facebook.com
31.13.71.57	A+PTR	wit-edge-shv-01-lga3.facebook.com
31.13.71.61	A+PTR	edge-mws-shv-01-lga3.facebook.com
31.13.71.73	PTR	instagram-shv-05-lga1.fbcdn.net
31.13.71.169	A+PTR	edge-z-p4-shv-01-lga3.facebook.com
31.13.71.169	A	z-p4-scontent-lga3-1.xx.fbcdn.net
31.13.71.170	A+PTR	edge-mqtt-p4-shv-01-lga3.facebook.com
31.13.71.170	A	mqtt-p4.c10r.facebook.com
31.13.71.172	A+PTR	instagram-p4-shv-01-lga3.fbcdn.net
31.13.71.172	A	z-p4-scontent-lga3-1.cdninstagram.com
31.13.71.173	A+PTR	edge-ig-mqtt-p4-shv-01-lga3.facebook.com
31.13.71.173	A	mqtt-ig-p4.c10r.facebook.com
31.13.71.174	A+PTR	instagram-p42-shv-01-lga3.fbcdn.net
31.13.71.174	A	z-p42-scontent-lga3-1.cdninstagram.com
31.13.71.174	A	z-p42-instagram.c10r.facebook.com
31.13.71.204	A	instagram-pp-shv-01-lga3.fbcdn.net
31.13.71.206	PTR	synthetic-e2e-elbintern-sli-shv-01-lga3.facebook.com
31.13.71.214	A+PTR	edge-rtp-relay-40000-shv-01-lga3.facebook.com