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 49-0-87-0.24.fixed-public.twa-bng.myaisfibre.com is not the root of its zone.
Instead, try zone transfer on myaisfibre.com .
Instead, try zone transfer on myaisfibre.com .