157-157-222-226.mobile.static.siminn.is 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 157-157-222-226.mobile.static.siminn.is is not the root of its zone.
Instead, try zone transfer on static.siminn.is .