Robtex

Up: 192.41.64.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 192.41.64.0/25
Down right: 192.41.64.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
192.41.64.27	PTR	ac-admin-vip.ut1.answers.com
192.41.64.35	PTR	www.ut1.answers.com
192.41.64.54	PTR	search-vip.nj1.answers.com
192.41.64.54	A	search.glb.answers.com
192.41.64.54	A	search.answers.com
192.41.64.55	A	api.answers.com
192.41.64.62	A	i.answers.com
192.41.64.63	A	wiki.ut1.answers.com
192.41.64.63	A	www.wikianswers.com
192.41.64.63	A	online.answers.com
192.41.64.65	A	bd29.answers.com
192.41.64.65	A	ad35.answers.com
192.41.64.65	A	bd27.answers.com
192.41.64.66	A	gurunet.com
192.41.64.66	A	wikianswers.com
192.41.64.66	A	www.refanswers.com
192.41.64.170	PTR	infra-src002.ut1.answers.com
192.41.64.170	A	ut1.afcv.com
192.41.64.171	A+PTR	infra-src003.ut1.answers.com
192.41.64.171	A	rx-src.ut1.answers.com
192.41.64.171	A	coupons.answers.com
192.41.64.184	PTR	feeds.ut1.answers.com
192.41.64.184	A	feeds.answers.com
192.41.64.184	A	feeds.glb.answers.com
192.41.64.190	A+PTR	up-web-vip.ut1.answers.com
192.41.64.191	A	platform.answers.com
192.41.64.191	A	platform.glb.answers.com
192.41.64.214	PTR	am-gweb-vip.ut1.afcv.com
192.41.64.214	A	movies.answers.com
192.41.64.214	A	cooking.answers.com
192.41.64.243	A+PTR	resx01.ut1.answers.com