tool to check IPv4 allocations and assignments as stored in the RIPE database

 Asused is a tool which summarizes address space as registered in the RIPE
 database. For each allocated inetnum object a summary of used and free address
 space is printed. A grant total summary for all prefixes is also provided. If
 there are no errors in locating allocations and assignments under an
 allocation. In the total % are calculated on total allocations.