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 ns3.p200.dns.us-langley-1.oci.oraclegoviaas.com is not the root of its zone.
Instead, try zone transfer on us-langley-1.oci.oraclegoviaas.com .
Instead, try zone transfer on us-langley-1.oci.oraclegoviaas.com .