127.126.125.124 – Class A, Loopback
0.0.0.0 – Class A, This computer
172.17.168.127 – Class B, non-routable
192.168.1.48 – Class C, non-routable
12.13.14.15 – Class A, Directed broadcast
180.170.160.0 – Class B, Network
220.221.222.223 – Class C
Above I listed some IP addresses and have determined their class and what type of designated address they are. I understand that some of them may have another special feature that I did not list...can anybody help me point them out? Thank you.