Robtex

Up: 31.13.96.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 31.13.96.0/21
Down right: 31.13.104.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
31.13.96.192	A	alpha-shv-10-lla2.facebook.com
31.13.96.193	A	beta-shv-10-lla2.facebook.com
31.13.96.194	A	betanet-shv-10-lla2.facebook.com
31.13.96.195	A	secure-beta-shv-10-lla2.facebook.com
31.13.96.208	A	star-shv-10-lla2.facebook.com
31.13.97.8	A	rsxepcn3rtwsqrakvcqwhqellbi-.rk0.www.m.beta.facebook.com
31.13.97.8	A	*.f2.beta.facebook.com
31.13.97.8	A	*.blog.beta.facebook.com
31.13.97.9	PTR	betanet-shv-03-lla1.facebook.com
31.13.97.17	A	mgmcp555.com
31.13.97.17	A	zzyichen.com
31.13.97.19	A	www.96wangyou.cc.cname.yunjiasu-cdn.net
31.13.97.19	A	zhaosf.cz
31.13.97.69	A	vpnskyw.com
31.13.97.225	A	edge-z-1-shv-03-lla1.facebook.com
31.13.97.242	A	star-shv-03-lla1.facebook.com
31.13.97.245	A	383775.com
31.13.97.245	A	cn9444.com
31.13.97.245	A	6qqcp.com
31.13.98.2	A	snaptu-z.t.faceb.ipq.co
31.13.98.3	A+PTR	snaptu-da-shv-04-lla1.facebook.com
31.13.98.3	A	snaptu-d.vvv.facebook.com
31.13.98.17	A+PTR	atlas-shv-04-lla1.facebook.com
31.13.99.1	A	vpnyu.com
31.13.99.20	PTR	spray-shv-06-lla1.facebook.com
31.13.99.23	A	edge-star-shv-06-lla1.facebook.com
31.13.99.27	A	edge-z-shv-06-lla1.facebook.com
31.13.99.28	A	edge-z-m-shv-06-lla1.facebook.com
31.13.99.29	A	xx-fbcdn-shv-06-lla1.fbcdn.net
31.13.99.33	A	edge-z-1-shv-06-lla1.facebook.com
31.13.99.64	A	dbwsj.com
31.13.99.68	A	ssyy.xxkk.net
31.13.99.72	A	wwww77130.com
31.13.99.72	A	eee9702.com
31.13.100.1	A	atlas-shv-07-lla1.facebook.com
31.13.100.9	PTR	snaptu-za-shv-07-lla1.facebook.com
31.13.100.11	A	mqtt-shv-07-lla1.facebook.com
31.13.100.19	PTR	vupload2-shv-07-lla1.facebook.com
31.13.102.2	A	woool123.com
31.13.102.2	A	xn--fhqw1vj7rbvan9cpu4by70b.com
31.13.102.2	A	appspot.com--1179276.jjwxc.net
31.13.102.3	PTR	www-connect-shv-09-lla1.facebook.com
31.13.102.3	A	hzcp555.com
31.13.102.17	A	www.vpnwaimao.com
31.13.102.17	A	flipwalls.com.cn.w.alikunlun.com
31.13.102.68	A	ns.somee.com.lemedesign.com
31.13.102.68	A	www.greenvpngw.com
31.13.102.68	A	wdwg999.com
31.13.102.80	A	xn--ehqc746frye6xzpuuy70b.com
31.13.102.80	A	btwsj.com
31.13.102.80	A	hzcp555.com
31.13.103.0	PTR	fwdproxy-odn-000.fbsv.net
31.13.103.2	A	fwdproxy-odn-002.fbsv.net
31.13.103.3	A+PTR	fwdproxy-odn-003.fbsv.net
31.13.103.5	A	fwdproxy-odn-005.fbsv.net
31.13.103.7	A	fwdproxy-odn-007.fbsv.net
31.13.103.16	A	fwdproxy-odn-016.fbsv.net
31.13.103.17	A+PTR	fwdproxy-odn-017.fbsv.net
31.13.103.18	A+PTR	fwdproxy-odn-018.fbsv.net
31.13.103.19	A+PTR	fwdproxy-odn-019.fbsv.net
31.13.103.33	A+PTR	fwdproxy-odn-033.fbsv.net
31.13.103.119	PTR	fwdproxy-odn-119.fbsv.net
31.13.103.250	A+PTR	origincache-shv-01-rodn0.fbcdn.net
31.13.103.250	A	origincache-odn.t.fbcdn.net
31.13.106.1	A	origincache-all.t.fbcdn.net
31.13.106.4	PTR	vupload2-shv-15-lla1.facebook.com
31.13.109.1	A	snaptu-d-shv-11-lla1.facebook.com
31.13.109.2	A+PTR	snaptu-za-shv-11-lla1.facebook.com
31.13.109.3	PTR	snaptu-da-shv-11-lla1.facebook.com
31.13.109.6	A	iorg-fba-shv-11-lla1.facebook.com
31.13.109.7	A	snaptu-service-proxy-shv-11-lla1.facebook.com
31.13.110.1	PTR	star-shv-12-lla1.facebook.com
31.13.110.2	A	436uc.com
31.13.110.3	A	gvlibrary.com
31.13.110.3	A	xawsj.com
31.13.110.3	A	wwwjb7891.com
31.13.110.4	A	btwsj.com
31.13.110.16	A	138cp555.com
31.13.110.16	A	alexispeacehall.com
31.13.110.16	A	823c.com.dingxingshengtai.com
31.13.110.32	A	localhost.admin.ltwsj.com
31.13.110.32	A	363668888.com
31.13.110.32	A	www.fywsj.com
31.13.110.40	A	8657799.com
31.13.110.48	A	xpj123123.com
31.13.110.48	A	xincp555.com
31.13.111.2	A	t022666.com
31.13.111.2	A	2773775.com
31.13.111.8	A	*.portobranco25.tumblr.com.cn
31.13.111.8	A	089702.com
31.13.111.9	A	gvlibrary.com
31.13.111.36	A	87p555.com
31.13.111.36	A	3000ok.com.xw7.com
31.13.111.36	A	xn--nyq514ausaw23c.com
31.13.111.48	A	444301c.com
31.13.111.48	A	xn--fhq52khkz80bsmtpuuy70b.com