207-172-140-90.s8536.c3-0.slvr-cbr1.lnh-slvr.md.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 207-172-140-90.s8536.c3-0.slvr-cbr1.lnh-slvr.md.cable.rcncustomer.com is not the root of its zone.
Instead, try zone transfer on lnh-slvr.md.cable.rcncustomer.com .