Australian Maritime Safety Authority

MMSI information

Allocating a Maritime Mobile Service Identity (MMSI)

The Australian Maritime Safety Authority allocates MMSI’s to people who own a vessel or unit that has Digital Selective Calling (DSC) capable equipment or Automatic identification system (AIS) units.

Please click on the headings below to expand the information.

What is an MMSI?

Why do I need an MMSI?

How do I apply for an MMSI?

MMSI Application – online form

DSC Identification

MMSI Formats

Diver Locating Systems using AIS

Summary of Australian MMSI formats in current usage

Operator qualifications and licence requirements

Maritime Communication Station facilities for DSC

Small craft proceeding overseas

Search for MMSI

Further information

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