Robtex

Up: 206.113.192.0/23
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Down left: 206.113.192.0/25
Down right: 206.113.192.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
206.113.192.12	A+PTR	challenger.nielsenmedia.com
206.113.192.13	A	liberty.nielsenmedia.com
206.113.192.16	A+PTR	republic.nielsenmedia.com
206.113.192.17	A	yorktown.nielsenmedia.com
206.113.192.18	A	ns1.tvratings.com
206.113.192.18	A	nielsentracking.com
206.113.192.18	A	nielsenmonitorplus.com
206.113.192.19	A+PTR	ns2.nielsenmedia.com
206.113.192.23	A+PTR	titan.nielsen.com
206.113.192.35	A	nielseninternet.com
206.113.192.36	A	nielsenmedia.ca
206.113.192.36	A	www.nielsenmedia.ca
206.113.192.37	A	resolution.nielsenmedia.com
206.113.192.39	A+PTR	shc.nielsenmedia.com
206.113.192.43	A	my.bases.com
206.113.192.44	PTR	nielsen.com
206.113.192.44	A	nielsen-media.com
206.113.192.44	A	www.televisionadratings.com
206.113.192.67	A+PTR	remote-internet.nielsenmedia.com
206.113.192.70	A+PTR	adv.nielsenmedia.com
206.113.192.71	A+PTR	advsecure.nielsenmedia.com
206.113.192.75	A	www.tvratings.com
206.113.192.76	A+PTR	danse.nielsenmedia.com
206.113.192.77	A+PTR	danse1.nielsenmedia.com
206.113.192.78	A+PTR	danse2.nielsenmedia.com
206.113.192.80	A+PTR	nmrapweb.nielsenmedia.com
206.113.192.80	A	vnummimdrp.com
206.113.192.80	A	mnrsurvey.com
206.113.192.81	A	nmrapweb1.nielsenmedia.com
206.113.192.83	A+PTR	nmrapweb2.nielsenmedia.com
206.113.192.85	A	pmo.nielsenmedia.com
206.113.192.97	A	nielsenondemand.com
206.113.192.116	A+PTR	answerstest.acnielsen.com
206.113.192.117	A+PTR	linkstest.acnielsen.com
206.113.192.119	A	voicetest.acnielsen.com
206.113.192.137	A	web.nielsenmedia.com
206.113.192.149	A+PTR	odd-test.nielsenmedia.com
206.113.192.153	A+PTR	mmsvpntowersbackup.nielsenmedia.com
206.113.192.160	A	nmrapweb.nielsenweb.com
206.113.192.161	A+PTR	slfw.nielsenmedia.com
206.113.192.162	PTR	answers1.acnielsen.com
206.113.192.172	A	sync.answerstest.acnielsen.com
206.113.192.176	PTR	federate.answers.nielsen.com
206.113.192.179	PTR	answerswebqc.acnielsen.com
206.113.192.179	A	mail.imsms.com
206.113.192.179	A	mail.imsusa.com
206.113.192.180	A	re-vpn-pk10.nielsenmedia.com
206.113.192.181	A+PTR	re1-vpn-pk10.nielsenmedia.com
206.113.192.182	A	re2-vpn-pk10.nielsenmedia.com
206.113.192.183	A+PTR	oasys-prod.nielsenweb.com
206.113.192.189	A+PTR	answers.nielsen.com
206.113.192.189	A	grabix.com
206.113.192.189	A	www.grabix.com
206.113.192.191	A+PTR	links.acnielsen.com
206.113.192.192	PTR	lobby.nielsen.com
206.113.192.193	A+PTR	acngtls01.nielsenmedia.com
206.113.192.194	A+PTR	voice.nielsen.com
206.113.192.195	A	acngtls02.nielsenmedia.com
206.113.192.196	A	advsg.nielsenmedia.com
206.113.192.198	A	acndmzweb1.nielsenweb.com
206.113.192.200	PTR	answerswebqcps.acnielsen.com
206.113.192.200	A	ns1.rollup.com
206.113.192.200	A	ns1.mediaplan.com
206.113.192.203	A	ns2.mediaplan.com
206.113.192.203	A	webrf.com
206.113.192.203	A	combnavigateur.com
206.113.192.208	A	imseverywhere.com
206.113.192.236	A+PTR	answersdev.nielsen.com
206.113.192.236	A	answersdev.acnielsen.com
206.113.192.238	A	sync.answersdev.nielsen.com
206.113.192.239	A+PTR	answers.acnielsen.com
206.113.192.244	A	answersdev1.nielsen.com