128
15
4
0
This is one of the easiest subnets to conceptualize it is the same as a class C network with 256 addresses
255
0
255
255
The owner of this network has the 256 addresses from
128
15
4
0
128
15
4
255
Every Subnet has to allocate 2 addresses to overhead leaving 254 usable addresses
128
15
4
0
The First Address is the Network ID Address
128
15
4
255
The Last Address is the Broadcast Address
128
15
4
1
The First Useable Address, Usually the Gateway
128
15
4
254
The Last Useable Address, Usually a static Resource