IPv6 Calculator

Calculate IPv6 subnet information and analyze prefixes

Enter IPv6 address with CIDR notation (e.g., 2001:db8::/32)
Enter the prefix length for subnetting (must be larger than the original prefix)

📊 Network Information

Original Network:
Original Prefix:
New Subnet Prefix:
Total Subnets:
Addresses per Subnet:
Fixed Bits (Original Prefix):
Network Borrowed Bits:
Remaining Host Bits:
Subnet Increment:

🔒 First 5 Subnets

🔚 Last 5 Subnets

🔍 First 5 vs Last 5 Subnets Comparison

First 5 Subnets

Last 5 Subnets

Enter IPv6 address with CIDR notation (e.g., 2001:db8::/32)

📊 Prefix Information

Network Address:
Prefix Length:
Total Addresses:
Usable Hosts:
First Usable IP:
Last Usable IP:
Broadcast Address:
Binary Representation: