What's an MMSI Number?

If you're operating a radio-equipped sailboat in the United States, you'll need to have an MMSI (Maritime Mobile Service Identity) number for your vessel. This unique identifier is used for digital selective calling (DSC) radios and AIS devices, which are common on many modern marine vessels. The MMSI number allows for the automatic transmission of your vessel's identity and location in case of emergency or for routine communication with other vessels and maritime authorities.

Take the guessing game out of your MMSI application and registration. All we need is a couple of details about your vessel and we'll handle the rest.

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MMSI Registration, Domestic

Are you planning on traveling throughout the US on your vessel? Then you'll need a domestic MMSI number in order to legally use your AIS and radios.

This unique number is like your vessel's Social Security Number. It stays with the boat even if the boat is sold and can provide information on who the vessel is owned by and who the emergency contacts are in case of an emergency.

MMSI Registration, International

If you're planning on traveling internationally with your vessel, you'll need an MMSI number that allows you to communicate with other countries. Whether you're looking to spend the cruising season in the Bahamas or if you're taking your vessel through the Panama Canal, your MMSI number has to be registered with the FCC in order to communicate in foreign waters.

What Kinds of Vessels Need MMSI Numbers?

Vessels that typically need to have MMSI numbers include:

Vessels equipped with DSC (Digital Selective Calling) Radios: DSC radios are used for distress signaling and require an MMSI number for proper identification and communication.
Vessels equipped with AIS (Automatic Identification System): AIS is a tracking system used on ships and by vessel traffic services for identification and locating purposes. It's mandatory for certain types of vessels, like those over a certain size or engaged in international voyages, to have AIS, and thus they need MMSI numbers.
Commercial vessels: Many commercial vessels are required to have MMSI numbers for communication and tracking purposes. This includes cargo ships, passenger vessels, and fishing vessels operating in certain regions.
Boats participating in international voyages: If you plan to take your recreational vessel into international waters, having an MMSI number is often required for safety and communication purposes. This includes crossing oceans or traveling between countries.
Vessels participating in offshore races or events: Many offshore races and events, such as regattas or sailing competitions, require participants to have MMSI numbers. This helps organizers and safety authorities track and communicate with vessels during the event.
Larger recreational vessels: While not always mandatory, larger recreational vessels may be encouraged or required to have MMSI numbers, especially if they have the capability to travel further offshore or if they have advanced communication or safety equipment installed.

What's the Worst That Could Happen?

Penalties for not having an MMSI number can vary depending on the maritime regulations in your region. However, common penalties may include fines, restrictions on certain activities (such as participating in races or entering certain waters), or even legal action in severe cases. Additionally, not having an MMSI number could compromise your safety and ability to communicate effectively in emergency situations, which could result in further consequences. It's essential to comply with maritime regulations and equip your vessel with the necessary identifiers for safety and regulatory purposes.