ARIN to allocate from 74/8 & 75/8

> Connectivity testing is currently being done by Team Cymru on the following
> three /20s (one from each /8).  All of these test allocations originate with
> AS36666.
> 
> 74.63.0.0/20
> 75.127.0.0/20
> 76.191.0.0/20

and how is that testing being done?  how do we test that we can reach
the prefixes?  i.e. is there a pingable address in each, as has been
discussed here just a few times?

randy