Class B networks use a default subnet mask of 255.255. 0.0 and have 128-191 as their first octet. The address 172.16. 52.63 is a class B address.
What is a class B network address?
A class B network is a type of network in the now-defunct classful networking architecture. Class B networks have IP addresses between 128.0. 0.0 and 191.255. 255.255. The Classful networking system has been superseded by CIDR (Classless Inter-Domain Routing) since 1993.
How many network IDS does a class B have?
IP Addresses
| Class | Total Network ID Bits | Possible Networks |
|---|---|---|
| A | *8 | 27 – 2 = 126 |
| B | *16 | 214 = 16,384 |
| C | *24 | 221 = 2,097,152 |
Which criteria identify a Class B address?
If the address is written in binary format, the leftmost bits in the address will define the class. If the first bit is 0, the address is a class A address. If the first bit is 1 and the second bit is 0, the address is a class B address.
Is a Class B IP address private?
Reservation of IP addresses in Class B networks An important IP address reservation in Class B IPv4 addresses is private networks, from 172.16. Networks belongs to “Class B” from 172.16. 0.0 to 172.31. 0.0 are reserved for private use and can be used inside any organization.
What is a class B network used for?
Class B IP addresses are used for medium and large-sized networks in enterprises and organizations. They support up to 65,000 hosts on 16,000 individual networks.
How many IP addresses are there in a class B?
65,536
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 |
How do I find my network ID?
The network ID is found by logically ANDing the binary form of the IP address with the binary form of the subnet mask for the network. For example, if a host has an IP address of 172.16. 8.55 on a network with a subnet mask of 255.255. 0.0 (the default subnet mask), the network ID of the host is 172.16.
How do you subnet a Class B?
2-2=510 subnets. 2-2=126 hosts per subnet. For the third octet, the mask would be 256-255=1, 2, 3, 4, 5, 6, etc. For the fourth octet, the mask would be 256-128=128, which is one subnet if it is used….Subnetting a Class B network address.
| Subnet | 64.0 | 128.0 |
|---|---|---|
| broadcast | 127.255 | 191.255 |
How can you identify the class based on the IP address?
How to identify the IP class from a given IP address?
- If it begins with 0, then it’s a Class A network.
- If it begins with 10, then it’s a Class B network.
- If it begins with 110, then it’s a Class C network.
- If it begins with 1110, then it’s a Class D network.
- If it begins with 1111, then it’s a Class E network.
