Question 9B6

The Maritime Mobile Service Identity (MMSI) is a unique 9-digit identification code assigned to vessels, coast stations, and group calls within the Global Maritime Distress and Safety System (GMDSS). To link a specific MMSI to a vessel's name, you need to consult the official global registry. The "ITU List of Ship Stations and Maritime Mobile Service Identity Assignments" (also known as ITU List V) is the authoritative publication that contains the call signs, MMSIs, and other identifying particulars of ship stations licensed by various administrations. This list is specifically designed to allow users to look up a vessel's name and other details based on its MMSI or call sign. Option A, "ITU list of Coast Stations," focuses on land-based maritime stations, not individual vessels. Option C, "ITU List of Radio-determination and Ship Stations," is less direct and comprehensive for MMSI assignments than List V. Option D, "ITU Master Plan of Shore-Based Facilities," deals with infrastructure and is unrelated to identifying a specific vessel by its MMSI.