Bing found the following results
IPv6 - Wikipedia
IPv4 vs. IPv6: What Are the Differences? - How-To Geek
What Is IPv6? - Cisco
IPv6 address - Wikipedia
Internet Protocol version 6 (IPv6) overview - .NET | Microsoft Learn
What is IPv6? - GeeksforGeeks
What is an IPv6 Address? - TechTarget
Introduction to IPv6 - NetworkLessons.com
What Is IPv6, and Why Does It Matter? - How-To Geek
IPv6 Basics, News, Guides & Tutorials | Internet Society