nsb.hp.net has one IP number , which also has a corresponding reverse pointer. nsb.hp.com, am1.hp.com, am1.hp.net, srv2-hp.ma, atlrel1.hp.com and at least four other hosts point to the same IP. hp.net is a domain controlled by six nameservers at hp.net themselves. All of them are on different IP networks. Incoming mail for hp.net is handled by two mailservers on different IP networks. nsb.hp.net is hosted on a server in United States.