Term
| Class B
/23
7 bits borrowed |
|
Definition
| 128 subnets with 512 addresses -1 for the network & -1 for the broadcast = 510 usable hosts |
|
|
Term
| Class C
/24
0 bits borrowed |
|
Definition
| 1 subnet with 256 addresses -1 for the network & -1 for the broadcast = 254 usable hosts |
|
|
Term
Class B
/22
6 bits borrowed |
|
Definition
| 64 subnet with 1024 addresses -1 for the network & -1 for the broadcast = 1022 usable hosts |
|
|
Term
|
Definition
| 2 subnets with 128 addresses -1 for the network & -1 for the broadcast = 126 usable hosts |
|
|
Term
Class C
/26
2 bits borrowed |
|
Definition
| 4 subnets with 64 addresses -1 for the network & -1 for the broadcast = 62 usable hosts |
|
|
Term
Class C
/27
3 bits borrowed |
|
Definition
| 8 subnets with 32 addresses -1 for the network & -1 for the broadcast = 30 usable hosts |
|
|
Term
Class C
/28
4 bits borrowed |
|
Definition
| 16 subnets with 16 addresses -1 for the network & -1 for the broadcast = 14 usable hosts |
|
|
Term
Class C
/29
5 bits borrowed |
|
Definition
| 32 subnets with 8 addresses -1 for the network & -1 for the broadcast = 6 usable hosts |
|
|
Term
Class C
/30
6 bits borrowed |
|
Definition
| 64 subnets with 4 addresses -1 for the network & -1 for the broadcast = 2 usable hosts |
|
|
Term
|
Definition
| 1 subnet with 16,777,216 addresses -1 for the network & -1 for the broadcast = 1,777,214 usable hosts |
|
|
Term
|
Definition
| 2 subnets with 8,388,608 addresses -1 for the network & -1 for the broadcast = 8,388,606 usable hosts |
|
|
Term
Class A
/10
2 bits borrowed |
|
Definition
| 4 subnets with 4,194,304 addresses -1 for the network & -1 for the broadcast = 4,194,302 usable hosts |
|
|
Term
Class A
/11
3 bits borrowed |
|
Definition
8 subnets with 2,097,152 addresses -1 for the network & -1 for the broadcast
= 2,097,150 usable hosts |
|
|
Term
Class A
/12
4 bits borrowed |
|
Definition
16 subnets with 1,048,576 addresses -1 for the network & -1 for the broadcast
= 1,048,574 usable hosts |
|
|
Term
Class A
/13
5 bits borrowed |
|
Definition
32 subnets with 524,288 addresses -1 for the network & -1 for the broadcast
= 524,286 usable hosts |
|
|
Term
Class A
/14
6 bits borrowed |
|
Definition
64 subnets with 262,144 addresses -1 for the network & -1 for the broadcast
= 262,142 usable hosts |
|
|
Term
Class A
/15
7 bits borrowed |
|
Definition
128 subnets with 131,072 addresses -1 for the network & -1 for the broadcast
= 131,070 usable hosts |
|
|
Term
Class A
/16
8 bits borrowed |
|
Definition
256 subnets with 65,536 addresses -1 for the network & -1 for the broadcast
= 65,534 usable hosts |
|
|
Term
Class A
/17
9 bits borrowed |
|
Definition
| 512 subnets with 32,768 addresses -1 for the network & -1 for the broadcast = 32,766 usable hosts |
|
|
Term
Class A
/18
10 bits borrowed |
|
Definition
1024 subnets with 16,384 addresses -1 for the network & -1 for the broadcast
= 16,382 usable hosts |
|
|
Term
Class A
/19
11 bits borrowed |
|
Definition
2048 subnets with 8,192 addresses -1 for the network & -1 for the broadcast
= 8,190 usable hosts |
|
|
Term
Class A
/20
12 bits borrowed |
|
Definition
4096 subnets with 4,096 addresses -1 for the network & -1 for the broadcast
= 4,094 usable hosts |
|
|
Term
Class A
/21
13 bits borrowed |
|
Definition
| 8192 subnets with 2048 addresses -1 for the network & -1 for the broadcast = 2046 |
|
|
Term
Class A
/22
14 bits borrowed |
|
Definition
16,384 subnets with 1,024 addresses -1 for the network & -1 for the broadcast
= 1,022 usable hosts |
|
|
Term
Class A
/23
15 bits borrowed |
|
Definition
32,768 subnets with 512 addresses -1 for the network & -1 for the broadcast
= 510 usable hosts |
|
|
Term
Class A
/24
16 bits borrowed |
|
Definition
| 65,536 subnets with 256 addresses -1 for the network & -1 for the broadcast = 254 usable hosts |
|
|
Term
Class A
/25
17 bits borrowed |
|
Definition
131,072 subnets with 128 addresses -1 for the network & -1 for the broadcast
= 126 usable hosts |
|
|
Term
| Class A /26 18 bits borrowed |
|
Definition
| 262,144 subnets with 64 addresses -1 for the network & -1 for the broadcast = 62 usable hosts |
|
|
Term
Class A
/27
19 bits borrowed |
|
Definition
524,288 subnets with 32 addresses -1 for the network & -1 for the broadcast
= 30 usable hosts |
|
|
Term
Class A
/28
20 bits borrowed |
|
Definition
1,048,576 subnets with 16 addresses -1 for the network & -1 for the broadcast
= 14 usable hosts |
|
|
Term
Class A
/29
21 bits borrowed |
|
Definition
2,097,152 subnets with 8 addresses -1 for the network & -1 for the broadcast
= 6 usable hosts |
|
|
Term
Class A
/30
22 bits borrowed |
|
Definition
4,194,304 subnets with 4 addresses -1 for the network & -1 for the broadcast
= 2 usable hosts |
|
|
Term
Class B
/16
0 borrowed bits |
|
Definition
1 subnet with 65,536 addresses -1 for the network & -1 for the broadcast
= 65,534 usable hosts |
|
|
Term
|
Definition
2 subnets with 32,768 addresses -1 for the network & -1 for the broadcast
= 32,766 usable hosts |
|
|
Term
Class B
/18
2 bits borrowed |
|
Definition
4 subnets with 16,384 addresses -1 for the network & -1 for the broadcast
= 16,382 usable hosts |
|
|
Term
Class B
/19
3 bits borrowed |
|
Definition
8 subnets with 8,192 addresses -1 for the network & -1 for the broadcast
= 8,190 usable hosts |
|
|
Term
Class B
/20
4 bits borrowed |
|
Definition
16 subnets with 4,096 addresses -1 for the network & -1 for the broadcast
= 4,094 usable hosts |
|
|
Term
Class B
/21
5 bits borrowed |
|
Definition
32 subnets with 2,048 addresses -1 for the network & -1 for the broadcast
= 2,046 usable hosts |
|
|
Term
Class B
/22
6 bits borrowed |
|
Definition
64 subnets with 1,024 addresses -1 for the network & -1 for the broadcast
= 1,022 usable hosts |
|
|
Term
Class B
/23
7 bits borrowed |
|
Definition
128 subnets with 512 addresses -1 for the network & -1 for the broadcast
= 510 usable hosts |
|
|
Term
Class B
/24
8 bits borrowed |
|
Definition
256 subnets with 256 addresses -1 for the network & -1 for the broadcast
= 254 usable hosts |
|
|
Term
Class B
/25
9 bits borrowed |
|
Definition
512 subnets with 128 addresses -1 for the network & -1 for the broadcast
= 126 usable hosts |
|
|
Term
Class B
/26
10 bits borrowed |
|
Definition
1024 subnets with 64 addresses -1 for the network & -1 for the broadcast
= 62 usable hosts |
|
|
Term
Class B
/27
11 bits borrowed |
|
Definition
2048 subnets with 32 addresses -1 for the network & -1 for the broadcast
= 30 usable hosts |
|
|
Term
Class B
/28
12 bits borrowed |
|
Definition
4,096 subnets with 16 addresses -1 for the network & -1 for the broadcast
= 14 usable hosts |
|
|
Term
Class B
/29
13 bits borrowed |
|
Definition
8,192 subnets with 8 addresses -1 for the network & -1 for the broadcast
= 6 usable hosts |
|
|
Term
Class B
/30
14 bits borrowed |
|
Definition
16,384 subnets with 4 addresses -1 for the network & -1 for the broadcast
= 2 usable hosts |
|
|
