I am a Computer Science undergraduate researcher currently analyzing network traffic patterns and regional access control mechanisms. I am particularly interested in how Google/YouTube services ensure service integrity across different geographic locations.
I would like to inquire about the technical feasibility and the actual utilization of specific network metadata within the Google ecosystem (including YouTube):
1. Mobile Country Code (MCC) Extraction: From a security and service delivery standpoint, does the infrastructure actively monitor the MCC of a mobile user (e.g., via carrier-provided headers or app-level telemetry) to prevent regional service bypass? If so, is this data prioritized over IP-based geolocation?
2. Autonomous System Number (ASN) Analysis: Does Google’s security layer utilize ASN data (derived from the user's connecting IP) to categorize traffic and identify potential anomalies or unauthorized access points (such as VPNs or data centers)?
3. Data Correlation: Is there a documented process where both MCC and ASN are correlated to verify the physical presence of a user within a specific region?
The goal of my inquiry is to understand the robustness of these identifiers in a real-world security environment for my academic paper. Any insights or official documentation regarding the processing of these network-level identifiers would be greatly appreciated.
Thank you in advance for your expertise.
Best regards,
[도경 / Dokyung]