IP subnet calculator

67.21.89.242-67.21.95.255

67.21.89.242-67.21.89.243
67.21.89.242/31

67.21.89.244-67.21.89.247
67.21.89.244/30

67.21.89.248-67.21.89.255
67.21.89.248/29

67.21.90.0-67.21.91.255
67.21.90.0/23

67.21.92.0-67.21.95.255
67.21.92.0/22