Robtex

Up: 216.52.242.0/23
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Down left: 216.52.243.0/25
Down right: 216.52.243.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.52.243.98	A+PTR	connect2.guitarcenter.com
216.52.243.159	A+PTR	smtp1wlv.guitarcenter.com
216.52.243.159	A	guitarcenterusedgear.com
216.52.243.159	A	exmail2.musiceducationtipoftheday.com
216.52.243.160	A	smtp2wlv.guitarcenter.com
216.52.243.160	A	smtp2.jo-ral.com
216.52.243.160	A	smtp2wlv.musiciansfriend.com
216.52.243.193	PTR	ns1.guitarcenter.com
216.52.243.194	PTR	ns2.guitarcenter.com