About the Subnet Helper
Our subnet calculator is a comprehensive tool for network engineers. It supports both IPv4 and IPv6 protocols, allowing you to calculate network addresses, host ranges, and CIDR notation instantly, generating and exporting full subnet maps to CSV for easy documentation.
Key Features for Network Administrators:
- IPv4 CIDR Calculator: Quickly identify usable IPs and broadcast addresses.
- IPv6 Planning: Plan IPv6 with our sequential prefix generator.
- Network Strategy: Specialized tools for splitting /48 or /56 blocks into standard /64 subnets.