Subnet Calculator
Calculateur de sous-réseaux IPv4 avec support CIDR.
Tableau CIDR de référence
| CIDR |
Masque |
Hôtes |
Usage typique |
| /32 |
255.255.255.255 |
1 |
Host route |
| /31 |
255.255.255.254 |
2 |
Point-to-point |
| /30 |
255.255.255.252 |
2 |
Point-to-point |
| /29 |
255.255.255.248 |
6 |
Petit segment |
| /28 |
255.255.255.240 |
14 |
Petit LAN |
| /27 |
255.255.255.224 |
30 |
Petit LAN |
| /26 |
255.255.255.192 |
62 |
LAN moyen |
| /25 |
255.255.255.128 |
126 |
LAN moyen |
| /24 |
255.255.255.0 |
254 |
LAN standard |
| /23 |
255.255.254.0 |
510 |
Grand LAN |
| /22 |
255.255.252.0 |
1022 |
Grand LAN |
| /21 |
255.255.248.0 |
2046 |
Campus |
| /20 |
255.255.240.0 |
4094 |
Campus |
| /16 |
255.255.0.0 |
65534 |
Classe B |
| /8 |
255.0.0.0 |
16M |
Classe A |
Plages privées (RFC 1918)
| Classe |
Plage |
CIDR |
| A |
10.0.0.0 - 10.255.255.255 |
10.0.0.0/8 |
| B |
172.16.0.0 - 172.31.255.255 |
172.16.0.0/12 |
| C |
192.168.0.0 - 192.168.255.255 |
192.168.0.0/16 |