am1.hp.com has one IP number , which also has a corresponding reverse pointer. nsb.hp.com, nsb.hp.net, am1.hp.net, srv2-hp.ma, atlrel1.hp.com and at least four other hosts point to the same IP. tcpn.com, hpwis.net, hpwis.com, hpl.hp.com, digital.com and at least two other hosts use this as a nameserver. hp.com is a domain controlled by six nameservers at hp.com themselves. All of them are on different IP networks. Incoming mail for hp.com is handled by one mailserver also at hp.com. hp.com has 13 IP numbers. Some of them are on the same IP network. am1.hp.com is hosted on a server in United States.