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This page was last updated:
December 12, 2003 , and now I am betting
you have a headache.
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|
Bits
|
1st
Octet |
Networks
|
Hosts
|
|
A
|
0
|
1-126
|
126
|
16,777,214
|
|
B |
10 |
128-191 |
16,384 |
65,534 |
|
C |
110 |
192-223 |
2,097,152 |
254 |
|
Mask: |
- |
192 |
224 |
240 |
248 |
252 |
254 |
255 |
|
Value of bit &
# of Supernets: |
128 |
64 |
32 |
16 |
8 |
4 |
2 |
1 |
|
# of Subnets: |
- |
2 |
6 |
14 |
30 |
62 |
126 |
254 |
Binary Equivalents
|
21-2 |
0 |
29-2 |
510 |
217-2 |
131,070 |
225-2 |
33,554,430 |
|
22-2 |
2 |
210-2 |
1,022 |
218-2 |
262,142 |
226-2 |
67,108,862 |
|
23-2 |
6 |
211-2 |
2,046 |
219-2 |
524,286 |
227-2 |
134,217,726 |
|
24-2 |
14 |
212-2 |
4,094 |
220-2 |
1,048,574 |
228-2 |
268,435,454 |
|
25-2 |
30 |
213-2 |
8,190 |
221-2 |
2,097,150 |
229-2 |
536,870,910 |
|
26-2 |
62 |
214-2 |
16,382 |
222-2 |
4,194,302 |
230-2 |
1,073,741,822 |
|
27-2 |
126 |
215-2 |
32,766 |
223-2 |
8,388,606 |
231-2 |
2,147,483,646 |
|
28-2 |
254 |
216-2 |
65,534 |
224-2 |
16,777,214 |
232-2 |
4,294,967,294 |
|
W . |
X . |
Y . |
Z . |
|
W . |
X . |
Y . |
Z . |
|
170 . |
85 . |
106 . |
202 . |
|
10101010 |
01010101 |
01101010 |
11001010 |
|
255 . |
255 . |
224 . |
0 . |
|
11111111 |
11111111 |
11100000 |
00000000 |
 Lowest high
order parity bit = 32
Beginning of subnet = 96
|
