On 18 feb 2011, at 14:10, Arturo Servin wrote: > When you talk about "unused" legacy space are you talking about the > "various" space or to the legacy space that is currently assigned but the > holders just require part of it?
Legacy space (A) = all the /8s marked as "legacy" by IANA. Used legacy space (B): addresses allocated/assigned according to one of the RIRs which falls within A. Unused legacy space (C): A - B. Examples: lots of class B networks, either they were never given out or they were returned. And 45/8 minus 45.0.0.0/15.
