38-49-129-91.customer.ientc.net.mx IXFR zone transfer

Changes since SOA version

IXFR is a zone transfer request that returns changes since a specific SOA version. Enter the SOA version to request changes since then.

Not an apex domain The domain 38-49-129-91.customer.ientc.net.mx is not the root of its zone.
Instead, try zone transfer on ientc.net.mx .