ns06.hh.nl has one IP number , but the reverse is pdns6.ultradns.co.uk. ns06.h2g.com, ns06.ragt.com, ns06.gero.com, ns06.hpic.com, ns06.xtoy.com and at least 100 other hosts point to the same IP. hh.nl use this as a nameserver. hh.nl is delegated to two nameservers, however seven extra nameservers are listed in the zone. Some of them are on the same IP network. Incoming mail for hh.nl is handled by one mailserver at hh.nl themselves. hh.nl has one IP number. ns06.hh.nl is hosted on a server in United States even though the hostname implies Netherlands.