Find domain zendesk.com's historical host IPs

IP History

	Basic Info			IP Whois Info
#ID	Host	IP Address	LastSeen	ASN	IP/CIDR	Organization
211	@	184.106.40.75	2014-02-24	AS19994	184.106.0.0 - 184.106.54.255	RACKSPACE - Rackspace Hosting
212	@	184.106.12.184	2011-11-13	AS19994	184.106.0.0 - 184.106.54.255	RACKSPACE - Rackspace Hosting