There are a total of 126 networks with 16,777,214 addresses per network in a Class A Address of ipv4. Such a big range Ha!
16 384 networks are available in Class B network.
Class C (192-223) In Class C there is 3 network bits and one host bit.
Over 16,000,000
A class C network supports the most networks - the first three octets or 24 bits gives the largest grouping of networks.
Wide area networks can consist of many local area networks, but it is possible for a wide area network to be a single network.
In a class B IP address, the first two bytes represent the network.The first two bits are 1 and 0, which means that there are 214 (10 000000 00000000 to 10 111111 11111111) network possibilities, which is 16,384 possible networks. The networks available in class B are therefore networks going from 128.0.0.0 to 191.255.0.0.The two bytes to the left represent the computers on the network. The network can therefore contain a number of computers equal to:216-21 = 65,534 computers.
in Class A addresses the first bit identifies the class. The next 7 bits identify the network and the rest are the IP's that belong to that network. However these networks are then broken down using subnets . Class A networks are not given to private clients or small private organisations. So if you want to know how many bits are there for identifying hosts in a Class A network, the answer is 32-8 = 24 bits. However if you mean how many bits are reserved for hosts in your private network space, that depends on your subnet and router. Most routers use NAT to allow multiple hosts to use a single external IP address. I hope this answers your question :)
First octet rule for each class:Class A: 0xxxxxxxClass B: 10xxxxxxClass C: 110xxxxxClass A range is 0 - 1270.0.0.0 and 127.0.0.0 are not "routable" IP addresses. One defines all networks and the other is the loopback. We have a total of 126 usable networks and 16,777,214 usable hostaddresses per network. There are even less if we don't count the private address of 10.0.0.0 (RFC 1918).Class B range is 128 - 191There are 16,384 total networks in this class; that's including the private addresses of 172.16.0.0 - 172.31.0.0 (RFC 1918). There are a total of 65,534 usable host addresses per network.Class C range is 192 - 223There are 2,097,152 total networks in this class; that's including the private addresses of 192.168.0.0 - 192.168.255.0 (RFC 1918). There are 254 usable hosts addresses per network.
In Class A networks, the maximum number of hosts is calculated as (2^{24} - 2), which equals 16,777,214 hosts. This formula accounts for the network and broadcast addresses, which cannot be assigned to hosts. Class A networks use the first octet for the network identifier, allowing for a large number of hosts within a single network. However, not every Class A network will have the maximum number of hosts; it depends on the specific subnetting used.
How many possible host addresses are there in a Class A range?Class A range is 0 - 1270.0.0.0 and 127.0.0.0 are not "routable" IP addresses. One defines all networks and the other is the loopback. We have a total of 126 usable networks and 16,777,214 usable hostaddresses per network.
A network class refers to a categorization of IP addresses within the Internet Protocol addressing scheme, used to define the range of addresses that can be assigned to devices within a network. The primary classes are A, B, and C, each distinguished by their default subnet masks and the number of available host addresses. Class A supports large networks, Class B is suited for medium-sized networks, and Class C is designed for smaller networks. This classification helps in routing and managing IP address allocation efficiently.
The idea is to use networks that are larger than a traditional (i.e., classful) network - especially, larger than a class-C network.