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UTILIDAD DE RED GRATISNetwork Tools

Calculadora de Subredes IPv4 y CIDR

Calcule dirección de red, dirección de difusión (broadcast), primer y último host, máscara de subred, máscara wildcard y desglose binario para cualquier prefijo CIDR.

Quick Definition

El subnetting divide una red IP amplia en segmentos más pequeños y seguros, optimizando la asignación de direcciones y reduciendo el tráfico innecesario.

IPv4 Subnet & CIDR Calculator

/0 (Internet)/16 (Class B)/24 (Class C)/32 (Host)
Quick presets:
CALCULATED NETWORK

192.168.1.0 / 24

254 Usable HostsClass C · Private
Subnet Mask
255.255.255.0
Wildcard Mask
0.0.0.255
Network Address
192.168.1.0
Broadcast Address
192.168.1.255
First Usable Host
192.168.1.1
Last Usable Host
192.168.1.254
Usable Host Range
192.168.1.1 – 192.168.1.254
Total / Usable Hosts
256 (254 usable)
Network Bits: 24 bits (24)Host Bits: 8 bits (28 addresses)
Network IDAvailable Hosts
View Binary Representation & Bitwise Breakdown▾
MetricDotted Decimal32-bit Binary Representation
IP Address192.168.1.011000000.10101000.00000001.00000000
Subnet Mask255.255.255.011111111.11111111.11111111.00000000
Network Address192.168.1.011000000.10101000.00000001.00000000
Broadcast Address192.168.1.25511000000.10101000.00000001.11111111

Common CIDR Subnet Prefix Reference Table

CIDRSubnet MaskTotal AddressesUsable HostsTypical Use Case
255.255.255.25511Single Host Route / Loopback
255.255.255.25422RFC 3021 Point-to-Point Links
255.255.255.25242Point-to-Point Router Links
255.255.255.24886Small Branch / Public IP Block
255.255.255.2401614Small Office Network
255.255.255.2243230Mid-size Department Subnet
255.255.255.1926462VLAN Subnet
255.255.255.128128126Half Class C Network
255.255.255.0256254Standard Class C LAN / Office
255.255.254.0512510Multi-Floor Corporate Network
255.255.252.01,0241,022Campus Wireless LAN
255.255.248.02,0482,046Large Campus / Datacenter
255.255.240.04,0964,094Cloud VPC Subnet
255.255.0.065,53665,534Standard Class B / Enterprise VPC
255.0.0.016,777,21616,777,214Class A / ISP Supernet
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COMMON QUESTIONS

Principios de Subnetting y CIDR

Guía práctica para planificar redes IP eficientes y evitar solapamientos de direccionamiento.

¿Qué significa CIDR en redes?

Significa Classless Inter-Domain Routing, un método flexible para asignar direcciones IP sin las limitaciones de las clases tradicionales A, B o C.

¿Por qué la dirección de red y la de broadcast no se asignan a equipos?

La primera identifica la propia subred; la última está reservada para enviar mensajes a todos los equipos dentro de esa subred.

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