adsl-074-169-220-029.sip.bct.bellsouth.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 adsl-074-169-220-029.sip.bct.bellsouth.net is not the root of its zone.
Instead, try zone transfer on sip.bct.bellsouth.net .