Summary
golomb.nic.pr has one IP number , which also has a corresponding reverse pointer.
pr,
us.pr,
do.pr,
jm.pr,
tc.pr and at least 47 other hosts use this as a nameserver.
nic.pr is a domain controlled by five nameservers. Some of them are on the same IP network. Incoming mail for
nic.pr is handled by one mailserver at
nic.pr themselves.
nic.pr has one IP number.
golomb.nic.pr is hosted on a server in Puerto Rico.