209-122-10-203.s11721.c3-0.atw-cbr1.atw.pa.cable.rcncustomer.com 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 209-122-10-203.s11721.c3-0.atw-cbr1.atw.pa.cable.rcncustomer.com is not the root of its zone.
Instead, try zone transfer on atw.pa.cable.rcncustomer.com .