IP Subnet Calculator
www.calculator.net › ip-subnet-In IPv6, the network prefix performs a similar function as the subnet mask in IPv4, with the prefix length representing the number of bits in the address. Prior to the introduction of CIDR, IPv4 network prefixes could be directly obtained from the IP address based on the class (A, B, or C, which vary based on the range of IP addresses they include) of the address and the network mask.
Subnet masks (IPv4) and prefixes (IPv6) - IBM
www.ibm.com › docs › enOct 10, 2010 · The prefix-length specifies a range of devices. It is expressed as a slash (/), followed by an integer between 1 through 128. For example, a prefix-length of /64 specified like this: 2001:db8:abcd:0012::/64 tells the system to divide the network into 64 subnetworks. Each subnetwork contains 1/64th of the devices on the network.
Subnet Prefix Length: what is it, what should mine be ...
nuangel.net › 2018 › 05May 29, 2018 · A “/24” network means 254 usable IP addresses, a /16 means 65,534! So, to make sense of this, let’s use some examples: an IP address with a Subnet Prefix such as “192.168.1.0/24” indicates that you are using the IP addressing scheme of 192.168.1.x with the subnet mask of 255.255.255.0 and you have the 254 usable addresses (1-255).