Another Look At Route Aggregation
When we translate it to binary to find the common prefix to all of the addresses, we find a non-contiguous bit pattern:
100011011.00000001.10001100.00000000 - 155.1.140.0/24
100011011.00000001.10001101.00000000 - 155.1.141.0/24
100011011.00000001.10001110.00000000 - 155.1.142.0/24
100011011.00000001.10001111.00000000 - 155.1.143.0/24
100011011.00000001.10001000.00000000 - 155.1.144.0/24
100011011.00000001.100011xx.00000000 - Common prefix