I decided to start a small company. I asked my ISP, myISP, to give me enough addresses  for 3472 hosts. myISP owns the IP address block 135.25.0.0/16 and allocated a block
from this address range and told me to use the following addresses (* can be any  number in the range 0-255):
 
135.25.8.*
135.25.9.*
135.25.10.*
135.25.11.*
135.25.12.*
135.25.13.*
135.25.14.*
135.25.15.*
135.25.16.*
135.25.17.*
135.25.18.*
135.25.19.*
135.25.20.*
135.25.21.*
 
Since the sizes of the Internet routing tables have grown to huge proportions, I decided to announce the fewest number of CIDR prefixes to exactly cover all my company’s IP
addresses. Give the IP address block(s) that I need to use for advertising all addresses in my network, but no other addresses (use address/prefix format of CIDR). Show your work.