Convert And Check Standard IPv6 Formats With IPv6 Address Converter
IPv4 to IPv6 Converter extension - Opera add-ons
IPv4 IPv6 Subnet Calculator Help
GitHub - ygvn/IPv6-Subnet-Calculator-Tool-JavaFX: IPv6 Subnet Calculator / Tool application lets you plan/subnet your assigned IPv6 address for all 128 bits.
LanCalculator - IP Subnet Calculator for IPv4/IPv6 Networks - LizardSystems
IPv6 Subnetting Card — RIPE Network Coordination Centre
5 Best Subnet Calculators - DNSstuff
Subnetting with IPv6 - Part 2/2 - CodeProject
SubetCalc
The Mask - IPv4 & IPv6 Calculator (The Free Download
IPv4 to IPv6 Converter extension - Opera add-ons
svolpi.ch - IPv6-Converter
IPv4 vs. IPv6 - ScaleUp Technologies
Net Helper (IPv4 & IPv6 Calculator) for Android - APK Download