{"id":"vpc-ula-ipv6-slash-48-permanent","text":"A VPC network's /48 ULA IPv6 range (from fd20::/20) is globally unique within Google Cloud and cannot be removed or changed once assigned.","truth_value":"IN","source":"entries/2026/03/10/vpc-subnets.md","source_url":"","source_hash":"0a93f184ecf6ad03","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"vpc-ula-ipv6-slash-48-permanent","truth_value":"IN","reason":"premise"}]}}