享受蔚藍的天空

A類IP地址： 
子網位 /主機位 子網掩碼 子網最大數 /主機最大數 
2/22 255.192.0.0 2/4194302 
3/21 255.224.0.0 6/2097150 
4/20 255.240.0.0 14/1048574 
5/19 255.248.0.0 30/524286 
6/18 255.252.0.0 62/262142 
7/17 255.254.0.0 126/131070 
8/16 255.255.0.0 254/65536 
9/15 255.255.128.0 510/32766 
10/14 255.255.192.0 1022/16382 
11/13 255.255.224.0 2046/8190 
12/12 255.255.240.0 4094/4094 
13/11 255.255.248.0 8190/2046 
14/10 255.255.252.0 16382/1022 
15/9 255.255.254.0 32766/510 
16/8 255.255.255.0 65536/254 
17/7 255.255.255.128 131070/126 
18/6 255.255.255.192 262142/62 
19/5 255.255.255.224 524286/30 
20/4 255.255.255.240 1048574/14 
21/3 255.255.255.248 2097150/6 
22/2 255.255.255.252 4194302/2 
B類IP地址： 
子網位 /主機位 子網掩碼 子網最大數 /主機最大數 
2/14 255.255.192.0 2/16382 
3/13 255.255.224.0 6/8190 
4/12 255.255.240.0 14/4094 
5/11 255.255.248.0 30/2046 
6/10 255.255.252.0 62/1022 
7/9 255.255.254.0 126/510 
8/8 255.255.255.0 254/254 
9/7 255.255.255.128 510/126 
10/6 255.255.255.192 1022/62 
11/5 255.255.255.224 2046/30 
12/4 255.255.255.240 4094/14 
13/3 255.255.255.248 8190/6 
14/2 255.255.255.252 16382/2 
C類IP地址： 
子網位 /主機位 子網掩碼 子網最大數 /主機最大數 
2/6 255.255.255.192 2/62 
3/5 255.255.255.224 6/30 
4/4 255.255.255.240 14/14 
5/3 255.255.255.248 30/6 
6/2 255.255.255.252 62/2