245.ip-143-186-138.pe.ipxon.net 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 245.ip-143-186-138.pe.ipxon.net is not the root of its zone.
Instead, try zone transfer on ipxon.net .