65-61-121-178.ptr.tierpoint.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 65-61-121-178.ptr.tierpoint.com is not the root of its zone.
Instead, try zone transfer on tierpoint.com .