Split subnet by size
This service will calculate IP ranges and subnet masks by splitting the specified network into any number of subnets with any number of IP addresses in each of them.
For example, to split the network 192.168.0.0/23 into four subnets, each of which has 8 IP addresses, enter:
8 8 8 8 192.168.0.0/23
And to split the 192.168.0.0/20 network into three subnets, in which 100, 200 and 500 IP addresses enter:
100 200 500 192.168.0.0/20
First you need to specify the number of IP addresses, and then the network to spli.