Robtex

Up: 173.252.88.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 173.252.88.0/23
Down right: 173.252.90.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
173.252.88.64	A+PTR	star-shv-03-atn1.facebook.com
173.252.88.66	A	mail.i4site.com
173.252.88.66	A	*.hu.htmlwww.facebook.hu
173.252.88.66	A	*.htmlm.facebooks.com
173.252.88.68	A	cp660011.com
173.252.88.68	A	edge-z-m-shv-03-atn1.facebook.com
173.252.88.68	A	wwwzunbao112.com
173.252.88.74	A+PTR	alpha-shv-03-atn1.facebook.com
173.252.88.74	A	alpha.vvv.facebook.com
173.252.88.75	A	pt-br.beta.facebook.com
173.252.88.75	A	www.1.lite.beta.facebook.com
173.252.88.76	A+PTR	betanet-shv-03-atn1.facebook.com
173.252.88.90	A	mail.banpinmattroi.com
173.252.88.112	A	sifu.xxkk.net
173.252.88.128	A	hldbwsj.com
173.252.88.128	A	zzysdwsj.com
173.252.88.131	A	xmpp-shv-05-atn1.facebook.com
173.252.88.132	A	da-dk.sv-se.inyour.facebook.com
173.252.88.132	A	zh-tw.nl-nl.inyour.facebook.com
173.252.88.132	A	hu-hu.pt-br.inyour.facebook.com
173.252.88.136	A	www.it-it.developers.prod.facebook.com
173.252.88.136	A	en-gb.de-de.prod.facebook.com
173.252.88.137	A	cinyour-shv-05-atn1.facebook.com
173.252.88.163	A	*.hu.htmlwww.facebook.hu
173.252.88.163	A	9697.net
173.252.88.164	A	8807599.com
173.252.88.164	A	shlwsj.com
173.252.88.164	A	www.vpnfeiyu.com
173.252.88.168	A	star-shv-06-atn1.facebook.com
173.252.88.192	A	origincache-pt.t.fbcdn.net
173.252.88.192	A	origincache-shv-07-atn1.fbcdn.net
173.252.88.227	A	vupload2-shv-08-atn1.facebook.com
173.252.88.229	A	pushnotifs-shv-08-atn1.facebook.com
173.252.89.3	A	arcliu.com
173.252.89.3	A	173vpn1.com
173.252.89.3	A	www.saifengvnp.com
173.252.89.9	A	secure-beta-shv-03-atn1.facebook.com
173.252.89.32	A	origincache-atn.t.fbcdn.net
173.252.89.33	A	vupload2-shv-09-atn1.facebook.com
173.252.89.36	A	pushnotifs-shv-09-atn1.facebook.com
173.252.89.40	A+PTR	snaptu-za-shv-09-atn1.facebook.com
173.252.89.42	A	snaptu-service-proxy-shv-09-atn1.facebook.com
173.252.89.132	A	1518018.com
173.252.89.132	A	ns1.hunhuasuan.com
173.252.89.133	A	wwp555.com
173.252.89.133	A	safacebook.com
173.252.90.1	A	iact.atdmt.com
173.252.90.1	A	jact.atdmt.com
173.252.90.2	A	c2s.z.liverail.com
173.252.90.6	A	dyywsj.com
173.252.90.6	A	www.appwz.cc
173.252.90.6	A	rswnpgbm8zspzvnj7nl9gtyodnt.q-.rk0.api.connect.facebook.com
173.252.90.12	A	profile-a-dfw.xx.fbcdn.net
173.252.90.36	A	woool123.com
173.252.90.36	A	xn--11-sx2g23c.com
173.252.90.36	A	rslakwamjvjpbcwu1j5yojpmvpah8-.rk0.www.facebook.co.za
173.252.90.132	A	cocolog-abdullahkul.tumblr.com.cn
173.252.90.132	A	5577130.com
173.252.90.177	A+PTR	snaptu-za-shv-06-atn2.facebook.com
173.252.90.179	A	snaptu-service-proxy-shv-06-atn2.facebook.com
173.252.90.180	A+PTR	origincache-shv-06-atn2.fbcdn.net
173.252.90.180	A	origincache-atn.t.fbcdn.net
173.252.90.181	A+PTR	wit-shv-06-atn2.fbcdn.net
173.252.90.183	A	wit.vvv.facebook.com
173.252.90.205	A	star-shv-03-atn2.facebook.com
173.252.91.4	A	myfungou.com
173.252.91.4	A	a18018.com
173.252.91.4	A	jgwsj.com
173.252.91.80	A	origincache-shv-07-atn2.fbcdn.net
173.252.91.84	A	snaptu-service-proxy-shv-07-atn2.facebook.com
173.252.91.112	A+PTR	origincache-shv-08-atn2.fbcdn.net
173.252.91.112	A	origincache-atn.t.fbcdn.net
173.252.91.112	A	origincache-all.t.fbcdn.net
173.252.91.113	A	ig-telegraph-shv-08-atn2.facebook.com
173.252.91.177	A	origincache-atn.t.fbcdn.net
173.252.91.177	A	origincache-all.t.fbcdn.net