How many IP networks are there?

Currently there are three classes of TCP/IP networks. Each class uses the 32-bit IP address space differently, providing more or fewer bits for the network part of the address. These classes are class A, class B, and class C.

What is the maximum number of hosts that can be attached to Class A in IPv4 addressing?

Each class A address has the first bit set to 0 and is followed by 7 bits for the network part, resulting in a maximum of 128 ( ) networks; this is then followed by a 24-bit host part. Thus, class A supports a maximum of 2 24 − 2 hosts per network.

How many IPv4 classes are there?

five classes
Broadly, the IPv4 Addressing system is divided into five classes of IP Addresses. All the five classes are identified by the first octet of IP Address. Internet Corporation for Assigned Names and Numbers is responsible for assigning IP addresses.

How many bits are in an IPv4 address?

32-bit
IPv4 addresses are 32-bit numbers that are typically displayed in dotted decimal notation. A 32-bit address contains two primary parts: the network prefix and the host number.

What are the maximum network in IPv4 Class A network?

Class A addresses are for networks with large number of total hosts. Class A allows for 126 networks by using the first octet for the network ID. The first bit in this octet, is always zero. The remaining seven bits in this octet complete the network ID.

What is the maximum number of IPv4 addresses?

Addresses in IPv4 are 32-bits long. This allows for a maximum of 4,294,967,296 (232) unique addresses. Addresses in IPv6 are 128-bits, which allows for 3.4 x 1038 (2128) unique addresses. The total usable address pool of both versions is reduced by various reserved addresses and other considerations.

What is the maximum number of network IDs in Class A network?

As a math-minded person might guess, the Class A format provides a small number of possible network IDs and a huge number of possible host IDs for each network. A Class A network can support approximately 224 hosts, which works out to 16,777,216 hosts.

What is the maximum number of IP address that can be assigned?

Including the router interface, how many hosts can have IP addresses on the LAN attached to the router interface? Explanation: A /29 (255.255. 255.248), regardless of the class of address, has only 3 host bits. Six hosts are the maximum number of hosts on this LAN, including the router interface.

What is the range of IPv4 addresses?

Table 6: IPv4 Internet address ranges. Addresses in the range 240.0. 0.0 to 255.255. 255.255 are reserved for future use.

How many classes are in IPv4?

Broadly, the IPv4 Addressing system is divided into five classes of IP Addresses. All the five classes are identified by the first octet of IP Address.

What is the maximum number of network IDs in Class A networks?

How many networks are there in Class A?

Classful addressing definition

Class	Leading bits	Number of networks
Class A	0	128 (27)
Class B	10	16,384 (214)
Class C	110	2,097,152 (221)
Class D (multicast)	1110	not defined