How to change the MMSI number?

Once entered and confirmed, the MMSI number on an AIS can only be changed by a technical dealer or by Digital Yacht.  This is a government requirement in many countries to ensure the security of the AIS system.

If you need your MMSI number reset or changed, we offer a reprogramming service.

The cost for this is £65.00/75.00€ + Return Shipping (+VAT – if applicable)

If you would like to go ahead with this, please complete and print the following:

If you do not have Microsoft Word or a means of editing Word documents, please print and complete this PDF version.

Please return the AIS transponder with the printed AIS PROGRAMMING form to the following address:

  • USA/UK/ROW: Digital Yacht Service, 7 Farleigh Court, BS48 1UR, Flax Bourton, United Kingdom
  • Europe/EU: Digital Yacht, 12 Boulevard des Belges, 76000 Rouen, FRANCE

If you’re returning a product from outside the EU, please put a value of GBP £10.00/ USD $14.00 / EUR €12.00 for the product and if requested by the freight company or postal service, use MARINE ELECTRONIC EQUIPMENT as a description and the commodity code 90148000.

The reason for return can be Product Service or Return for Repair.

Alternatively, the MMSI can be reset by any local NMEA certified/technical marine dealer who will have the cables, programming leads and software to complete.

For Nomad and Nomad2 customers, please contact us via our ticketing system.