====== CIDR Netmask Translation Table ====== ^ Netmask ^ Binary ^ CIDR ^ Notes ^ |255.255.255.255|11111111.11111111.11111111.11111111|/32|Single Host| |255.255.255.254|11111111.11111111.11111111.11111110|/31|0 useable| |255.255.255.252|11111111.11111111.11111111.11111100|/30|2 useable| |255.255.255.248|11111111.11111111.11111111.11111000|/29|6 useable| |255.255.255.240|11111111.11111111.11111111.11110000|/28|14 useable| |255.255.255.224|11111111.11111111.11111111.11100000|/27|30 useable| |255.255.255.192|11111111.11111111.11111111.11000000|/26|62 useable| |255.255.255.128|11111111.11111111.11111111.10000000 |/25|126 useable| |255.255.255.0|11111111.11111111.11111111.00000000|/24|Class C Network| |255.255.254.0|11111111.11111111.11111110.00000000|/23| | |255.255.252.0|11111111.11111111.11111100.00000000|/22| | |255.255.248.0|11111111.11111111.11111000.00000000|/21| | |255.255.240.0|11111111.11111111.11110000.00000000|/20| | |255.255.224.0|11111111.11111111.11100000.00000000|/19| | |255.255.192.0|11111111.11111111.11000000.00000000|/18| | |255.255.128.0|11111111.11111111.10000000.00000000|/17| | |255.255.0.0|11111111.11111111.00000000.00000000|/16|Class B Network| |255.254.0.0|11111111.11111110.00000000.00000000|/15| | |255.252.0.0|11111111.11111100.00000000.00000000|/14| | |255.248.0.0|11111111.11111000.00000000.00000000|/13| | |255.240.0.0|11111111.11110000.00000000.00000000|/12| | |255.224.0.0|11111111.11100000.00000000.00000000|/11| | |255.192.0.0|11111111.11000000.00000000.00000000|/10| | |255.128.0.0|11111111.10000000.00000000.00000000|/9| | |255.0.0.0|11111111.00000000.00000000.00000000|/8|Class A Network| |254.0.0.0|11111110.00000000.00000000.00000000|/7| | |252.0.0.0|11111100.00000000.00000000.00000000|/6| | |248.0.0.0|11111000.00000000.00000000.00000000|/5| | |240.0.0.0|11110000.00000000.00000000.00000000|/4| | |224.0.0.0|11100000.00000000.00000000.00000000|/3| | |192.0.0.0|11000000.00000000.00000000.00000000|/2| | |128.0.0.0|10000000.00000000.00000000.00000000|/1| | |0.0.0.0|00000000.00000000.00000000.00000000|/0| |