209.244.0.0-209.244.63.255 209.244.0.0/18
209.244.64.0-209.244.95.255 209.244.64.0/19
209.244.96.0-209.244.103.255 209.244.96.0/21
209.244.104.0-209.244.107.255 209.244.104.0/22