Referencia IPv4
Tabla de subredes CIDR de /0 a /32
Consulta en una sola tabla todos los prefijos IPv4, máscaras decimales, direcciones totales y reglas de hosts utilizables.
Cálculo privado en el navegador
Dirección, prefijo y dimensionado
Referencia finita completa
Los 33 prefijos CIDR IPv4
De /0 a /30 se reservan red y broadcast. /31 sigue la semántica punto a punto y /32 identifica una ruta de host.
| CIDR | Máscara de subred | Direcciones totales | Direcciones utilizables | Interpretación |
|---|---|---|---|---|
| /0 | 0.0.0.0 | 4294967296 | 4294967294 | Subred normal |
| /1 | 128.0.0.0 | 2147483648 | 2147483646 | Subred normal |
| /2 | 192.0.0.0 | 1073741824 | 1073741822 | Subred normal |
| /3 | 224.0.0.0 | 536870912 | 536870910 | Subred normal |
| /4 | 240.0.0.0 | 268435456 | 268435454 | Subred normal |
| /5 | 248.0.0.0 | 134217728 | 134217726 | Subred normal |
| /6 | 252.0.0.0 | 67108864 | 67108862 | Subred normal |
| /7 | 254.0.0.0 | 33554432 | 33554430 | Subred normal |
| /8 | 255.0.0.0 | 16777216 | 16777214 | Subred normal |
| /9 | 255.128.0.0 | 8388608 | 8388606 | Subred normal |
| /10 | 255.192.0.0 | 4194304 | 4194302 | Subred normal |
| /11 | 255.224.0.0 | 2097152 | 2097150 | Subred normal |
| /12 | 255.240.0.0 | 1048576 | 1048574 | Subred normal |
| /13 | 255.248.0.0 | 524288 | 524286 | Subred normal |
| /14 | 255.252.0.0 | 262144 | 262142 | Subred normal |
| /15 | 255.254.0.0 | 131072 | 131070 | Subred normal |
| /16 | 255.255.0.0 | 65536 | 65534 | Subred normal |
| /17 | 255.255.128.0 | 32768 | 32766 | Subred normal |
| /18 | 255.255.192.0 | 16384 | 16382 | Subred normal |
| /19 | 255.255.224.0 | 8192 | 8190 | Subred normal |
| /20 | 255.255.240.0 | 4096 | 4094 | Subred normal |
| /21 | 255.255.248.0 | 2048 | 2046 | Subred normal |
| /22 | 255.255.252.0 | 1024 | 1022 | Subred normal |
| /23 | 255.255.254.0 | 512 | 510 | Subred normal |
| /24 | 255.255.255.0 | 256 | 254 | Subred normal |
| /25 | 255.255.255.128 | 128 | 126 | Subred normal |
| /26 | 255.255.255.192 | 64 | 62 | Subred normal |
| /27 | 255.255.255.224 | 32 | 30 | Subred normal |
| /28 | 255.255.255.240 | 16 | 14 | Subred normal |
| /29 | 255.255.255.248 | 8 | 6 | Subred normal |
| /30 | 255.255.255.252 | 4 | 2 | Subred normal |
| /31 | 255.255.255.254 | 2 | 2 | Punto a punto /31 según RFC 3021 |
| /32 | 255.255.255.255 | 1 | 1 | Ruta de un solo host /32 |