51-155-215-128.dsl.in-addr.zen.co.uk 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 51-155-215-128.dsl.in-addr.zen.co.uk is not the root of its zone.
Instead, try zone transfer on in-addr.zen.co.uk .