I have seen online , where they mention Class D:
CIDR block 22.214.171.124/4
Range: Network - Broadcast 126.96.36.199 - 188.8.131.52
I am not sure why it goes from 224 to 239. How did they come up with it ? since it is /4 as notation?
On this link: http://ipduh.com/ip/cidr/?184.108.40.206/4
they even say Netmask = 240.0.0.0
Confusing to me