Provenance Record

Concise 366-word Briefing (range 300-800) with Overview / What We Know / Background / What We Don't Know structure. Appropriately scoped to what the release notes say.

Read all three snapshots from disk (source-0/1/2.html.gz, gunzipped, all HTTP 200, no archive fallback). source-0 (NCC release notes): Sept 29, 2026 entry reads 'Network Connectivity Center (NCC) support for Partner Cross-Cloud Interconnect for Amazon Web Services (AWS) is Generally Available. Billing for Partner Cross-Cloud Interconnect for Amazon Web Services (AWS) is going to commence over the next 30 days following General Availability. For the most current billing information, see Network Connectivity Center pricing.' - confirms the snapshot contains the Sept 29 entry and the verbatim quoted phrases; the April 14, 2026 entry reads 'NCC support for Partner Cross-Cloud Interconnect for AWS is available in public preview'. source-1 (Cloud Interconnect release notes): Sept 29, 2026 same GA entry (without the billing sentence); July 27, 2026 traffic metrics for the transport resource 'available in Preview'; July 14, 2026 new locations australia-southeast1 and europe-north2; April 14, 2026 'Partner Cross-Cloud Interconnect for AWS with VPC Network Peering is Generally Available' plus NCC support 'available in Preview'. All match the article. Headline and summary treat '30 days' as a window ('Within 30 Days', 'over the following 30 days'), not a fixed date; the body states the exact start date is not given. source-2 (The Register, 2025-12-01): contains 'The two companies claim they've produced a new open specification for network interoperability, with the API available for other providers to adopt.' and 'on-demand bandwidth starting at 1 Gbps during preview and scaling to 100 Gbps at general availability' - both quoted accurately and used only for the December 2025 launch background, not for the new GA claim. Allowlist: docs.cloud.google.com (line 787), cloud.google.com (786), theregister.com (118) all present. Internal link /article/2026-09/03-aws-interconnect-adds-microsoft-azure-in-public-preview-... resolves to an existing published article. All body URLs are in article.sources.

Every date, quote, location name and the preview-to-GA arc (Apr 14 to Sep 29, ~5.5 months, described as 'about five months') trace to the snapshots. 'Extends GA from the peering-based setup to the NCC-based one' is a fair inference from the April 14 entry. No unsupported claims found.

Clean, well-sourced Briefing. Approve for publication without corrections.