Professional Subnet Calculator
Professional IPv4/IPv6 subnet calculator with VLSM planning, route aggregation, CIDR, and overlap detection.
Professional IPv4/IPv6 Subnet Calculator (CIDR)
Plan your network architecture with precision. Our Subnet Calculator handles both IPv4 and IPv6 addressing, allowing you to calculate network ranges, broadcast addresses, and usable host counts from any CIDR block. Essential for Network Engineers obtaining certifications (CCNA/CCNP) or DevOps professionals configuring VPCs in AWS, Azure, or Google Cloud.
How it Works
- 1Enter an IP address (e.g., 192.168.1.1) and select the CIDR mask (/24).
- 2The tool instantly calculates the Network Address, Broadcast Address, and Host Range.
- 3View the Subnet Mask in dotted decimal and binary formats.
- 4See the total number of usable hosts.
- 5Use the 'Divide' feature to split a network into smaller subnets.
Key Features
Common Use Cases
Frequently Asked Questions
Everything you need to know about using this tool effectively and securely.
Q.What is CIDR?
CIDR (Classless Inter-Domain Routing) is a method for allocating IP addresses and IP routing. It replaces the old class system with a flexible network prefix (e.g., /24).
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