Robtex

Up: 184.75.160.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 184.75.168.0/22
Down right: 184.75.172.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
184.75.168.9	A+PTR	family-dev-01.zynga.com
184.75.168.103	A+PTR	github-ca.corp.zynga.com
184.75.168.111	A	zprofiler-zc2.zynga.com
184.75.168.130	PTR	fb-fb-0.castle.zynga.com
184.75.168.130	A+PTR	zy-0.castle.zynga.com
184.75.168.136	A	client.slingo.zynga.com
184.75.168.150	A+PTR	appconfig.zynga.com
184.75.168.154	PTR	support.zynga.com
184.75.168.155	PTR	arena-1.mafiawars.zynga.com
184.75.168.155	PTR	arena-2.mafiawars.zynga.com
184.75.168.155	PTR	lobby-1.mafiawars.zynga.com
184.75.168.156	A+PTR	facebook.mafiawars.com
184.75.168.156	PTR	mwfb.zynga.com
184.75.168.156	PTR	facebook.mafiawars.zynga.com
184.75.168.161	PTR	static-proxy.zynga.com
184.75.168.162	PTR	accounts.zynga.com
184.75.168.167	A	fb-client-dbg.castle.zynga.com
184.75.168.176	PTR	code.zynga.com
184.75.169.129	PTR	zcms-bld.farmville.com
184.75.169.151	A	zdcsazptv.com
184.75.169.158	A	zdcsbzptv.com
184.75.170.99	A+PTR	mobile-auth-ca2.zynga.com
184.75.170.99	A+PTR	mobile-auth.zc1.zynga.com
184.75.170.99	PTR	mobile-auth.zc2.zynga.com
184.75.170.129	A+PTR	fb.hot.zynga.com
184.75.170.129	A+PTR	zy.hot.zynga.com
184.75.170.134	PTR	zoom.zynga.com
184.75.170.134	PTR	fb.slashmobile.zynga.com
184.75.170.136	PTR	meta.farm2.zynga.com
184.75.170.136	A+PTR	meta.harvest.zynga.com
184.75.170.140	A	static-proxy.zynga.com
184.75.170.143	A	developers.zynga.com
184.75.170.149	A	msn.farmville.com
184.75.170.151	A	fv-zprod-tc-3.farmville.com
184.75.170.151	A	fv-zprod-tc-0.farmville.com
184.75.170.151	A	fb-tc-0.farmville.com
184.75.170.153	A+PTR	fv-zprod-iphone.farmville.com
184.75.170.153	A	iphone.farmville.com
184.75.170.154	A+PTR	express.farmville.com
184.75.170.154	PTR	fv-zprod-m.farmville.com
184.75.170.154	A	m.farmville.com
184.75.170.160	A	fv-prodstage-hiphop-01.farmville.com
184.75.170.165	A	*.zyngapoker.com
184.75.170.165	A	poker-stg.zynga.com
184.75.170.166	A	poker.track.zynga.com
184.75.170.168	A	statics.poker.zynga.com
184.75.170.169	PTR	m.poker.zynga.com
184.75.170.171	PTR	casino.poker.zynga.com
184.75.170.171	PTR	facebook.poker.zynga.com
184.75.170.171	PTR	facebook2.poker.zynga.com
184.75.170.173	A	nav4.poker.zynga.com
184.75.170.176	A	*.iminlikewithyou.com
184.75.170.176	A	mail.iminlikewithyou.com
184.75.170.176	A	iilwy1.iminlikewithyou.com
184.75.170.188	PTR	yoville.com
184.75.170.188	PTR	www.yoville.com
184.75.170.188	PTR	www2.yoville.com
184.75.170.192	PTR	company.zynga.com
184.75.170.192	A	petville.com
184.75.170.192	A	www.petville.com
184.75.170.195	A+PTR	media.zynga.com
184.75.170.201	A+PTR	reply.zyngamail.com
184.75.170.202	A	fb-mwf.zynga.com
184.75.170.203	A	track.api.zynga.com
184.75.170.203	A	*.api.zynga.com
184.75.170.209	PTR	feed.dst2.zynga.com
184.75.170.224	A	portal.oss.zynga.com
184.75.170.225	A+PTR	client.castlemobile.zynga.com
184.75.170.252	A	zbar.zynga.com
184.75.171.2	PTR	web.staging.bubble.zynga.com
184.75.171.2	A+PTR	web-staging.bubble.zynga.com
184.75.171.3	A+PTR	fb.staging.bubble.zynga.com
184.75.171.3	A+PTR	fb-staging.bubble.zynga.com
184.75.171.23	PTR	fb.staging.slotsmobile.zynga.com
184.75.171.23	PTR	web.staging.slotsmobile.zynga.com
184.75.171.23	PTR	web-staging.slotsmobile.zynga.com
184.75.171.30	A+PTR	fb.staging.rubyrush.zynga.com
184.75.171.30	A+PTR	zc2-staging-pt-fb.frontier.zynga.com
184.75.171.34	A+PTR	greyhound.staging.rubyrush.zynga.com
184.75.171.34	A+PTR	fb-zc2.bravo.staging.cityville.zynga.com
184.75.171.36	A	client.staging.shockwave.zynga.com
184.75.171.36	A	dev1.ninjaclans.zynga.com
184.75.171.43	A+PTR	zy.zynga.com
184.75.171.43	PTR	fb.staging2.slotsmobile.zynga.com
184.75.171.43	PTR	fb-staging2.slotsmobile.zynga.com
184.75.171.45	A+PTR	stage.gh-mt.zynga.com
184.75.171.45	A+PTR	uforge.zynga.com
184.75.171.52	A+PTR	fv-zprodstage-hiphop.farmville.com
184.75.171.59	A+PTR	fv-packaging.farmville.com
184.75.171.75	PTR	fb.staging2.rubyrush.zynga.com
184.75.171.84	A+PTR	dev2.ninjaclans.zynga.com
184.75.172.6	A	glb3.zynga.com
184.75.172.7	A	glb4.zynga.com
184.75.173.136	A+PTR	ca1-pci-ssl-cluster-pm2.zynga.com
184.75.173.178	PTR	secureapi.payments.zynga.com
184.75.173.178	PTR	testsecureapi.payments.zynga.com
184.75.173.179	PTR	secure1.zynga.com
184.75.173.179	PTR	zpay1.zynga.com
184.75.175.16	PTR	dev.yoville.com