A default subnet mask gives you classful addressing on octet boundaries. A non-default subnet mask implies that you are subnetting a larger network into several smaller ones.
The default subnet mask has a standard size. The custom subnet mask allows you to make subnets that are smaller or larger than the default.
I really wish to know
Default Subnet mask: 255.255.0.0
default subnet mask for 126.96.36.199
Two default gateways in one subnet
default subnet mask for class a ip address
The default subnet mask for188.8.131.52 is 176.43.
The default subnet would be 255.0.0.0 (class A)
For a class A address the default subnet mask is 255.0.0.0
The submask indicates the division between the network id and the host information in an ipV4 address. The default subnet mask indicates the presence of a class A, B, or C based network (the default) without subnetting.
The default subnet mask would be 255.255.0.0
If this is a default subnet mask, then it would be a class C subnet mask. If you are subnetting a network and this is not the default subnet mask, then it could be either a class A or class B.