calculate
Free Utility
Visual Subnet Calculator
Interactive tool to split, join, and visualize subnets. Includes Azure reserved address calculation.
info
Azure & Cloud Reservations
Azure reserves 5 IP addresses in every subnet. These are not available for host assignment.
- x.x.x.0 : Network Address
- x.x.x.1 : Default Gateway
- x.x.x.2 : Azure DNS Mapping
- x.x.x.3 : Future Use
- x.x.x.255 : Network Broadcast