CIDR Benefits 

• Efficient use of scarce IPv4 addresses

• Reduce number entries in global routing table (aggregation into supernets)

202.78.240.0/30
202.78.240.4/30
202.78.240.8/29
202.78.240.16/28
202.78.240.32/28
202.78.240.48/28
202.78.240.64/28
202.78.240.80/28
202.78.240.96/27
202.78.240.128/25

• Blocks given out in appropriate sizes.

• eg: some NZ organisations awarded Class B's in late 80s by ARIN

153.111.0.0/16
155.59.0.0/16
156.59.0.0/16
156.62.0.0/16
156.69.0.0/16
161.140.0.0/16
161.29.0.0/16
161.65.0.0/16
161.66.0.0/16
163.7.0.0/16
165.84.0.0/16
166.179.0.0/16
166.65.0.0/16
166.83.0.0/16
172.30.0.0/16