Summary
ns0.dnb.com has one IP number , which also has a corresponding reverse pointer.
dnb.it,
dnb.com,
dnbi.com,
dnb.co.uk,
dnbla.com and at least 45 other hosts use this as a nameserver.
dnb.com is a domain controlled by two nameservers at
dnb.com themselves. They are on different IP networks. Incoming mail for
dnb.com is handled by four mailservers also at
dnb.com. All of them are on the same IP network.
dnb.com has two IP numbers. They are on different IP networks.
ns0.dnb.com is hosted on a server in United States.