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International Mobile Satellite Organization

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Title: International Mobile Satellite Organization  
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International Mobile Satellite Organization

Inmarsat member states

The International Mobile Satellite Organization (IMSO) is the intergovernmental organization that oversees certain public satellite safety and security communication services provided via the Inmarsat satellites. Some of these services concern:

  • International Maritime Organization (IMO)
  • Search and rescue co-ordinating communications
  • Maritime safety information (MSI) broadcasts
  • Aeronautical mobile satellite (route) service, or AMS(R)S, through compliance with the Standards and Recommended Practices (SARPs) established by the International Civil Aviation Organization (ICAO)
  • General communications



  • Official website of IMSO

External links

  1. ^ Information on the activities of international intergovernmental and non-governmental organizations relating to space law,  
  2. ^ Amendments to the Convention on the International Maritime Satellite Organization with Operating Agreement, 9 December 1994 
  3. ^ "Amendments to the Convention on the International Maritime Satellite Organization with Operating Agreement". 
  4. ^ a b c Proposed Amendments to the Convention on the International Mobile Satellite Organization (IMSO), Council of the  
  5. ^ Member states.


As of December 2014, Inmarsat has 99 state parties[5] that represent approximately 95 per cent of the gross tonnage of the world's merchant fleet.

After the succession, the Inmarsat space segment and operational business were transferred to Montreal, Canada, on 20 September 2000 and addresses the relationship between ICAO and IMSO.[4]


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