MASCARA DE SUBREDE

Máscaras de Subredes para Classe A
Classe A – Padrão 255.0.0.0 com perfixo /8
Bits emprestadosMáscaraPrefixoSubredes  (2n)Hosts (2n-2)
1255.128.0.0/928388606
2225.192.0.0/1044194302
3225.224.0.0/1182097150
4225.240.0.0/12161048574
5225.248.0.0/1332524286
6225.252.0.0/1464262142
7225.254.0.0/15128131070
8255.255.0.0/1625665534
9255.255.128.0/1751232766
10255.255.192.0/18102416382
11255.255.224.0/1920488190
12255.255.240.0/2040964094
13255.255.248.0/2181922046
14255.255.252.0/22163841022
15255.255.254.0/2332768510
16255.255.255.0/2465536254
17255.255.255.128/25131072126
18255.255.255.192/2626214462
19255.255.255.224/2752428830
20255.255.255.240/28104857614
21255.255.255.248/2920971526
22255.255.255.252/3041943042
23255.255.255.254/3183886082 (*)
Máscaras de Subredes para Classe B
Classe B – Padrão 255.255.0.0 com perfixo /16
Bits emprestadosMáscaraPrefixoSubredes (2n)Hosts (2n-2)
1255.255.128.0/17232766
2255.255.192.0/18416382
3255.255.224.0/1988190
4255.255.240.0/20164094
5255.255.248.0/21322046
6255.255.252.0/22641022
7255.255.254.0/23128510
8255.255.255.0/24256254
9255.255.255.128/25512126
10255.255.255.192/26102462
11255.255.255.224/27204830
12255.255.255.240/28409614
13255.255.255.248/2981926
14255.255.255.252/30163842
15255.255.255.253/31327682 (*)
Máscaras de Subredes para Classe C
Classe C – Padrão 255.255.255.0 com perfixo /24
Bits emprestadosMáscaraPreficoSubredes  (2n)Hosts (2n-2)
1255.255.255.128/252126
2255.255.255.192/26462
3255.255.255.224/27830
4255.255.255.240/281614
5255.255.255.248/29326
6255.255.255.252/30642
7255.255.255.253/311282 (*)

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