It is (or was) fairly commonly in use among internal nets which overflowed RFC 1918 or have to internetwork with other heavy users of RFC 1918 space. I know of at least two service providers and one cell network who were using it for that 3 years ago.
Someone leaking internal routes for such? Or attempt to hijack the space? Only the Shadow knows... On Thu, Mar 21, 2013 at 11:17 AM, Donald Eastlake <d3e...@gmail.com> wrote: > No authorized IETF use that I know of. See > http://www.iana.org/assignments/ipv4-address-space/ipv4-address-space.xml > > Thanks, > Donald > ============================= > Donald E. Eastlake 3rd +1-508-333-2270 (cell) > 155 Beaver Street, Milford, MA 01757 USA > d3e...@gmail.com > > > On Thu, Mar 21, 2013 at 2:09 PM, Buz Dale <buzd...@gmail.com> wrote: >> Is anyone else seeing a lot of Class E address space (240.0.0.0/4) at their >> borders? Has this space been reinstated in some as yet unknown to me RFC? >> Thanks, >> Buz >> >> -- >> Buz Dale >> buzd...@gmail.com >> GMT -5 >> -- >> >> >> >> -- >> Buz Dale >> buzd...@gmail.com >> GMT -5 >> -- > -- -george william herbert george.herb...@gmail.com