An ISP is granted a block of addresses starting with 184.108.40.206/16. The ISP wants to distribute these blocks to 2600 customers as follows.
a. The first group has 200 medium-size businesses; each needs 128 addresses.
b. The second group has 400 small businesses; each needs 16 addresses.
c. The third group has 2000 households; each needs 4 addresses.
Design the sub-blocks and give the slash notation for each sub-block. Find out how many addresses are still available after these allocations.