GW-87.245.203.13-RT.ES.VOZ.retn.ru 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 GW-87.245.203.13-RT.ES.VOZ.retn.ru is not the root of its zone.
Instead, try zone transfer on retn.ru .