Robtex

Up: 31.13.72.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 31.13.72.0/25
Down right: 31.13.72.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
31.13.72.1	PTR	netprobe-bgp-01-arn2.facebook.com
31.13.72.1	PTR	edge-fblite-ws-p1-shv-01-arn2.facebook.com
31.13.72.1	A	999m99.com
31.13.72.2	A+PTR	edge-atlas-shv-01-arn2.facebook.com
31.13.72.2	A	5323c.com
31.13.72.3	PTR	edge-liverail-shv-01-arn2.facebook.com
31.13.72.3	A+PTR	edge-stun-shv-01-arn2.facebook.com
31.13.72.4	PTR	edge-z-shv-03-lhr2.facebook.com
31.13.72.4	A	823c.com
31.13.72.4	A	37555p.com
31.13.72.5	A+PTR	edge-mqtt-shv-01-arn2.facebook.com
31.13.72.6	A+PTR	edge-snaptu-http-p1-shv-01-arn2.facebook.com
31.13.72.7	A+PTR	edge-sonar-shv-01-arn2.fbcdn.net
31.13.72.7	A+PTR	secure-edge-latest-shv-01-arn2.facebook.com
31.13.72.7	A	scontent-01.xx.fbcdn.net
31.13.72.8	A+PTR	edge-star-shv-01-arn2.facebook.com
31.13.72.9	A+PTR	edge-z-shv-01-arn2.facebook.com
31.13.72.9	A	fdsfdswasdhbgfesw.com
31.13.72.9	A	cctwsj.com
31.13.72.10	A	fbvp-edgetee-upload-arn.xx.fbcdn.net
31.13.72.11	A+PTR	edge-z-m-shv-01-arn2.facebook.com
31.13.72.12	A+PTR	xx-fbcdn-shv-01-arn2.fbcdn.net
31.13.72.12	A	external-arn2-1.xx.fbcdn.net
31.13.72.12	A	sonar-fthe.xx.fbcdn.net
31.13.72.14	A+PTR	edge-video-shv-01-arn2.fbcdn.net
31.13.72.14	A	video-arn2-1.xx.fbcdn.net
31.13.72.15	A	livestream-edgetee-upload-shv-01-arn2.facebook.com
31.13.72.16	A	lo8s.com--mmjjme.tumblr.com--www.lo8s.com
31.13.72.16	A	wap11143.com
31.13.72.16	A	edge-secure-shv-01-arn2.facebook.com
31.13.72.17	A	h69888.com
31.13.72.17	A	jsss.link
31.13.72.17	A	www001717.com
31.13.72.18	A+PTR	edge-extern-shv-01-arn2.facebook.com
31.13.72.18	A	taoyi.xxkk.net
31.13.72.18	A	jbpcp555.com
31.13.72.19	A+PTR	livestream-edgetee-shv-01-arn2.facebook.com
31.13.72.19	A	r022666.com
31.13.72.19	A	wwww.bodog888.com.wscy.cn
31.13.72.20	A	edge-z-p1-shv-01-arn2.facebook.com
31.13.72.21	PTR	edge-livestream-dev-upload-shv-01-arn2.facebook.com
31.13.72.22	A	edge-livestream-api-upload-shv-01-arn2.facebook.com
31.13.72.23	A	jyjsmgc.com
31.13.72.23	A	game919.com
31.13.72.23	A	xinpj1900.com
31.13.72.27	A+PTR	edge-shortwave-shv-01-arn2.facebook.com
31.13.72.32	PTR	instagram-shv-01-lhr2.fbcdn.net
31.13.72.32	A	edge-z-mini-shv-01-arn2.facebook.com
31.13.72.33	A+PTR	edge-snaptu-http-mini-shv-01-arn2.facebook.com
31.13.72.33	A	s022666.com
31.13.72.33	A	wwwwp555.com
31.13.72.34	PTR	edge-mqtt-mini-shv-01-arn2.facebook.com
31.13.72.34	A	jyjsmgc.com
31.13.72.34	A	long8898.com
31.13.72.35	PTR	edge-sonar-mini-shv-01-arn2.fbcdn.net
31.13.72.35	A	fec09e8c980kyoji6qy-pcpftcnj1525850925-sonar.xz.fbcdn.net
31.13.72.35	A	f410a63e780kh2nlwaq-tebyctec1522732460-sonar.xx.fbcdn.net
31.13.72.36	A+PTR	edge-star-mini-shv-01-arn2.facebook.com
31.13.72.36	A	bj-wsj.com
31.13.72.37	A+PTR	edge-z-m-mini-shv-01-arn2.facebook.com
31.13.72.37	A	z-m-scontent-arn2-1.xx.fbcdn.net
31.13.72.37	A	z-m-scontent-arn.xx.fbcdn.net
31.13.72.38	PTR	edge-fblite-tcp-mini-shv-01-arn2.facebook.com
31.13.72.38	A	edge-star-z-mini-shv-01-arn2.facebook.com
31.13.72.40	A+PTR	edge-z-1-p2-shv-01-arn2.facebook.com
31.13.72.40	A	z-1-video-arn2-1.xx.fbcdn.net
31.13.72.40	A	z-1-scontent-arn2-1.xx.fbcdn.net
31.13.72.41	A+PTR	edge-snaptu-http-p2-shv-01-arn2.facebook.com
31.13.72.48	PTR	edge-turn-bgp-01-arn2.facebook.com
31.13.72.48	A+PTR	whatsapp-chatd-edge-shv-01-arn2.facebook.com
31.13.72.49	A+PTR	edgeray-shv-01-arn2.facebook.com
31.13.72.49	A	723123c.com
31.13.72.49	A	xn--fhqw1vj7rbvan9cpu4by70b.com
31.13.72.50	A	www.vpnwaimao.com
31.13.72.50	A	ymcp555.com
31.13.72.50	A	xn--zsro2d88fx23c.com
31.13.72.51	PTR	edge-oculus-shv-01-arn2.fbcdn.net
31.13.72.51	A	97cp555.com
31.13.72.51	A	xn--ohq11kc5agp423c.com
31.13.72.52	A+PTR	whatsapp-cdn-shv-01-arn2.fbcdn.net
31.13.72.52	A	w5f1720061kuv6jbea-gmzdcnrsga3tomju.snr.whatsapp.net
31.13.72.52	A	w361293341k3dnn4da-gqydambrgu2tcmrz.snr.whatsapp.net
31.13.72.53	A+PTR	instagram-p3-shv-01-arn2.fbcdn.net
31.13.72.53	A	xn--fhq21k5rck4mxowpuuy70b.com
31.13.72.53	A	www.woool123.com
31.13.72.54	PTR	edge-z-p3-shv-01-arn2.facebook.com
31.13.72.54	A	6611900.com
31.13.72.54	A	jinlinggo.com
31.13.72.55	A+PTR	edge-turnservice-shv-01-arn2.facebook.com
31.13.72.169	A	edge-z-p4-shv-01-arn2.facebook.com
31.13.72.169	A	z-p4-scontent-arn2-1.xx.fbcdn.net
31.13.72.172	A	z-p4-scontent-arn2-1.cdninstagram.com
31.13.72.174	A+PTR	instagram-p42-shv-01-arn2.fbcdn.net
31.13.72.174	A	z-p42-scontent-arn2-1.cdninstagram.com
31.13.72.254	PTR	rant.facebook.com