ns.rabobank.nl has one IP number , which also has a corresponding reverse pointer. rne.nl, tref.nl, rabo.us, freo.com, rabo.net and at least 100 other hosts use this as a nameserver. rabobank.nl is a domain controlled by two nameservers on different IP networks. Incoming mail for rabobank.nl is handled by one mailserver at rabobank.nl themselves. rabobank.nl has one IP number. ns.rabobank.nl is hosted on a server in Netherlands.