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CIDR / Subnet Calculator

Réseaux IPv4 et IPv6

FamilyIPv4
Address192.168.1.10
Prefix/24
Network192.168.1.0
Broadcast192.168.1.255
Subnet mask255.255.255.0
Wildcard0.0.0.255
First host192.168.1.1
Last host192.168.1.254
Total addresses256
Usable hosts254

À propos de cet outil

Compute network details for any IPv4 or IPv6 CIDR block - network and broadcast addresses, host range, mask, wildcard and total/usable host count.

Fonctionnalités

  • IPv4 and IPv6 support
  • Network, broadcast, first/last host
  • Subnet mask and wildcard
  • Total and usable address counts

Comment l'utiliser

  1. Type a CIDR like 10.0.0.0/24 or 2001:db8::/48.
  2. Read the calculated rows.
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Questions fréquentes

Why does IPv6 not show 'usable' separately?

IPv6 doesn't reserve network/broadcast addresses the way IPv4 does, so all addresses are usable.