Summary
idc.co.ir is a domain controlled by two nameservers at
isiran.com. They are on different IP networks. Incoming mail for
idc.co.ir is handled by one mailserver at
idc.co.ir themselves.
aja.ir,
aig.ir,
mod.ir,
aio.ir,
iasc.ir and at least 60 other hosts share nameservers with this domain.
mail.idc.co.ir are subdomains to this hostname.
co.ir is delegated to five nameservers, however one delegated nameserver is missing in the zone. All of them are on different IP networks.