If you don’t have the manual to your radio you can probably look it up online with the brand and model number
Here’s an overview of the MMSI
Yes, you must have your own unique vessel
MMSI number programmed into your
VHF/DSC radio to make calls, including calls to a
group MMSI number. Your individual MMSI acts as your identification, while the group MMSI is added to your radio's directory to reach multiple vessels simultaneously.
Key details:
- Unique ID Required: Every vessel using DSC (Digital Selective Calling) needs a unique MMSI to identify themselves.
- Group Functionality: A group MMSI (usually starting with a '0') is added to your radio's address book to allow you to call a fleet or group of boats.
- Testing: You can test your setup using the USCG test call number: 003669999.
You can obtain an MMSI number free of charge for domestic use through organizations like
BoatUS.