Summary
ns1.irib.com has one IP number , which also has a corresponding reverse pointer.
ns.irib.ir,
a.ns.tv2.ir,
a.ns.tv4.ir,
a.ns.tv1.ir,
ns1.irib.ir and at least 37 other hosts point to the same IP.
tvr.ir,
irc.ir,
irib.ir,
irib.com,
wilayah.ir and at least nine other hosts use this as a nameserver.
irib.com is delegated to five nameservers, however four delegated nameservers are missing in the zone. Some of them are on the same IP network. Incoming mail for
irib.com is handled by one mailserver at
irib.com themselves.
irib.com has one IP number.
ns1.irib.com is hosted on a server in Iran.