I need a few class Cs. Hope nobody will mind if I take
192.168.0.0/20. 
*> 192.168.22.0 144.228.71.5 0 1239 1800 1804 1128 1955 3337 ?
*> 192.168.100.0/22 144.228.71.5 0 1239 1794 ?
*> 192.168.216.0 144.228.71.5 0 1239 1800 1755 1273 ?
Shame on you 3337, 1794 and 1273.
- david