Entering Your MMSI Number


You can enter your MMSI number only once. If you must change your MMSI number after entering it, you must take your radio to your Garmin® dealer for reprogramming.

The Mobile Marine Safety Identity (MMSI) number is a nine-digit code that acts as a DSC self-identification number, and it is required to use the DSC capabilities of your radio. You can obtain an MMSI number from the telecommunications authority or ship registry for your country. In the USA, you can obtain an MMSI number from these sources:

  • Federal Communications Commission (FCC): assignments are recognized internationally

  • BoatU.S.®, Sea Tow®, or United States Power Squadrons®: assignments are for USA waters only.

  1. Select MENU > DSC > MY MMSI.
  2. Enter your MMSI number (Entering Text).
  3. Select ACCEPT.

    The radio prompts you to confirm your identity.

  4. Enter your MMSI number again, and select ACCEPT.

    If the MMSI numbers you entered do not match, a message appears.

  5. If necessary, select RETRY, and enter the number again.
GUID-B7A0C5D8-4F64-4F06-BA16-2206EFCAF537 v5
September 2023