name.phx.gblx.net has one IP number , which also has a corresponding reverse pointer. 3grc.com point to the same IP. cph.com, quza.net, bmco.com, avid.com, gblx.net and at least 100 other hosts use this as a nameserver. phx.gblx.net is a domain controlled by five nameservers. All of them are on different IP networks. name.phx.gblx.net is hosted on a server in United States.