What is Class C in IP address?
Emma Martin
Published Mar 12, 2026
What is Class C in IP address?
A Class C address consists of a 24-bit network address and an 8-bit local host address. The first three bits in the network address indicate the network class, leaving 21 bits for the actual network address. Therefore, there are 2,097,152 possible network addresses and 256 possible local host addresses.
How is an IP address broken down?
An IP address is typically written in decimal digits, formatted as four 8-bit fields separated by periods. Each 8-bit field represents a byte of the IP address. This form of representing the bytes of an IP address is often referred to as the dotted-decimal format.
What are the 4 parts of an IP address?
IP Address Components
- Address Class. Early in the development of IP, the IANA (Internet Assigned Numbers Authority) designated five classes of IP address: A, B, C, D, and E.
- Default Subnet Mask.
- The Network Field.
- The Host Field.
- Non-default Masks.
- The Subnet Field.
What is a Class C network?
A Class C network is any network in the 32-bit, IPv4 addressing scheme whose first three bits, the so-called high-order bits, are 110. IPv4 (Internet protocol version four) is the current mainstream addressing protocol for the Internet and other TCP/IP (transmission control protocol/Internet protocol) networks.
How many IPS is a Class C?
IP address classes
| Class | Leading bits | Addresses per network |
|---|---|---|
| Class A | 0 | 16,777,216 (224) |
| Class B | 10 | 65,536 (216) |
| Class C | 110 | 256 (28) |
| Class D (multicast) | 1110 | not defined |
What is the range of Class C IP address?
Designing Your IP Addressing Scheme
| Class | Range | Network Address |
|---|---|---|
| A | 0-127 | xxx |
| B | 128-191 | xxx . xxx |
| C | 192-223 | xxx . xxx . xxx |
What are the different types of classes & IP address?
IP address classes
| Class | Leading bits | End address |
|---|---|---|
| Class A | 0 | 127.255.255.255 |
| Class B | 10 | 191.255.255.255 |
| Class C | 110 | 223.255.255.255 |
| Class D (multicast) | 1110 | 239.255.255.255 |
What are the different IP classes and examples?
IP Header Classes:
| Class | Address Range | Example IP |
|---|---|---|
| IP Class A | 1 to 126 | 1.1.1.1 |
| IP Class B | 128 to 191 | 128.1.1.1 |
| IP Class C | 192 to 223 | 192.1.11. |
| IP Class D | 224 to 239 | NA |
What is the default subnet mask for Class C IP address?
255.255.255.0
Class C networks use a default subnet mask of 255.255. 255.0 and have 192-223 as their first octet. The address 192.168. 123.132 is a class C address.
How many subnets can a Class C network have?
Class C
| Network Bits | Subnet Mask | Number of Subnets |
|---|---|---|
| /25 | 255.255.255.128 | 2 (0) |
| /26 | 255.255.255.192 | 4 (2) |
| /27 | 255.255.255.224 | 8 (6) |
| /28 | 255.255.255.240 | 16 (14) |
Where do you find class C networks?
Class C addresses are used in small local area networks (LANs). Class C allows for approximately 2 million networks by using the first three octets for the network ID.
