ip-23-138-88-34.alphanet.com.pr 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 ip-23-138-88-34.alphanet.com.pr is not the root of its zone.
Instead, try zone transfer on alphanet.com.pr .