cusnc.navy.mil is delegated to two nameservers, however both delegated nameservers are missing in the zone. All nameservers are at oconus.navy.mil. They are on the same IP network. dg.navy.mil, fe.navy.mil, me.navy.mil, srf.navy.mil, fcg.navy.mil and at least 38 other hosts share nameservers with this domain. www.cusnc.navy.mil are subdomains to this hostname. navy.mil is a domain controlled by three nameservers at navy.mil themselves. Two of them are on the same IP network. Incoming mail for navy.mil is handled by three mailservers at nmci.navy.mil. All of them are on different IP networks.