Master Your Network.
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The ultimate and Fast Subnet Calculator. The comprehensive solution for Network Architects, Sysadmins, and students. No tracking, Calculate subnets, wildcards, and binary bits with precision.
What is Subnetting? (Simplified)
Think of a network like a massive School. If every student was in one giant hall, it would be noisy and chaotic!
Subnetting is like dividing that school into Classrooms. It organizes devices into smaller, manageable groups so data can travel faster, more securely, and without "noise".
Understanding Your Results
Network ID: The "Name" of the classroom. It identifies the specific group.
Broadcast IP: The "Loudspeaker". Use this address to shout a message to everyone in that specific room.
Host Range: The actual seats available for students (devices) to use.
Why Dritrez Tools?
⚡ Zero Latency: Calculations happen instantly in your browser.
🚫 Ad-Free & Private: No distractions. We never send your IP data to the cloud.
🛠️ Pro Features: Includes Wildcard Masks (for Firewalls), Binary visualization, and Hex conversion.
Features
✓ Class Support: One-click presets for Class A, B, and C private ranges.
✓ VLSM Ready: Full support for Variable Length Subnet Masks.
✓ Hex & IPv6: Advanced conversion for modern stack analysis.
Key Concepts
Wildcard Mask: The inverse of a subnet mask, crucial for Cisco ACLs.
CIDR: Classless Inter-Domain Routing (e.g., /24) enables efficient IP allocation.