GitHub - ygvn/IPv6-Subnet-Calculator-Tool-JavaFX: IPv6 Subnet Calculator / Tool application lets you plan/subnet your assigned IPv6 address for all 128 bits.
26. CCNA Ch12 - Create an IPv6 Subnet Calculator in Excel -Part2 - YouTube
7 Handy Subnet Calculators to Bookmark - Geekflare
IPv6 Subnetting Card — RIPE Network Coordination Centre