munin.compaq.com has one IP number , which also has a corresponding reverse pointer. nsa.hp.net, am3.hp.net, srv1-hp.ma, nsa.hp.com, am3.hp.com and at least three other hosts point to the same IP. compaq.com is a domain controlled by six nameservers at hp.com. All of them are on different IP networks. Incoming mail for compaq.com is handled by one mailserver also at hp.com. compaq.com has three IP numbers. All of them are on different IP networks. munin.compaq.com is hosted on a server in United States.