How to Obtain an MMSI Number

If you have a marine vehicle, one of the important items you should consider is an MMSI (Maritime Mobile Service Identity) number. An MMSI number is a safety precaution that can be beneficial if you ever need assistance while you are out on the water. The MMSI won't only allow you to contact the U.S. Coast Guard for emergency assistance, but you can also transmit signals to other boaters who may be nearby.

Things You'll Need

  • Marine DSC-VHF radio
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Instructions

    • 1

      Purchase a Marine VHF radio that is capable of "Digital Selective Calling." Marine radios can be purchased at boating supply stores and websites such as Marine Electronics and Marine Radio Direct.

    • 2

      Visit the Boat US or Sea Tow website and click on the option to register for an MMSI.

    • 3

      Complete the electronic registration form. You will need to provide information on the form such as your name, contact information, emergency contacts and boat registration number.

    • 4

      Click on the option to "Submit" your application.

    • 5

      Write down your MMSI number. You will receive the number after you submit your application online. It will also be sent to your email address.