The Department of Work and Pensions, UK has an entire /8

Wed Sep 19 03:27:38 UTC 2012

> When IPv4 exhaustion pain reaches a sufficiently high level of pain;
> there is a significant chance people who will be convinced that any
> use of IPv4 which does not involve  announcing and  routing the address
> space on the internet is a "Non-Use" of IPv4 addresses,
> 
> and that that particular point of view will prevail over the concept
> and convenience of being allowed to maintain unique registration for
> non-connected usage.
> 
> And perception that those addresses are up for grabs, either for using
> on RFC1918 networks for NAT, or for insisting that internet registry
> allocations be recalled and those resources put towards use by
> connected networks......
> 
> If you do have such an unconnected network, it may be prudent to have
> a connected network as well, and announce all your space anyways (just
> not route the addresses)

this is the arin vigilante cultural view of the world.  luckily, the
disease does not propagate sufficiently to cross oceans.

randy