For example, your ISP may assign the company 98.139.183.24/29, which is CIDR notation for a range of eight IP addresses from 98.139.183.24 to 908.139.183.31 with a subnet mask of 255.255.255.248.

The mask Class A subnet masks must start with ... etc., all the way to 248. If you use subnet zero, your first subnets are 0, and your last subnet is 255. An example of the 10.2.3.0 subnet is ...

The host bits are further divided between subnets and hosts. See subnet mask and subnet. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction requires permission.

The 32 subnet valid hosts are 33-46. Let’s do a fourth example using the Class C mask of 255.255.255.248. Here are the answers: How many subnet bits are used in this mask? Answer: 5 bits or 2^5 ...