Important information: AORE migration and changes in Inmarsat C coverage

The migration of Classic Aero, Fleet 77, Swift 64 and Inmarsat C services (to include Aero C and Mini C) from the Atlantic Ocean Region East (AORE)* I-3 F2 satellite to the I-3 F5 satellite has been scheduled to take place on 30 October 2018 at 11:00 UTC.

Note: There will be a change in satellite coverage for Inmarsat C service in AORE after this migration. Please see further details here.

Our primary objective is to ensure that the transition process is as seamless as possible for our partners and customers.

The transition of services from the I-3 fleet onto our I-4 constellation* will continue during the remainder of 2018. Our approach has been to migrate all services (Classic Aero, Fleet 77, Swift 64 and Inmarsat C), satellite by satellite, as per the schedule shown in the table below.

I-3 to I-4 migration Schedule
Atlantic Ocean Region West (AORW) I-3 to Americas (AMER) I-4 Classic Aero, Fleet 77 and Swift 64 services – migration successfully completed on 03 May 2018


Inmarsat C services (to include Aero C and Mini C) – migration successfully completed on 09 May 2018

Pacific Ocean Region (POR) I-3 to Asia/Pacific (APAC) I-4 Classic Aero, Fleet 77, Swift 64 and Inmarsat C services (to include Aero C and Mini C) – migration successfully completed on 29 August 2018
Atlantic Ocean Region East (AORE)* I-3 F2 moved to I-3 F5 Classic Aero, Fleet 77, Swift 64 and Inmarsat C services (to include Aero C and Mini C) – scheduled to take place on 30 October 2018 at 11:00 UTC
Indian Ocean Region (IOR) I-3 to Europe/Middle East/Asia (EMEA) I-4 Classic Aero, Fleet 77, Swift 64 and Inmarsat C services (to include Aero C and Mini C) – scheduled to take place mid-December 2018

* Note: AORE is not moving to the I-4 constellation.

Due to the move from the I-3 to the I-4 satellites*, the coverage areas will change and users will need to ensure that their devices are pointed to the relevant satellite. This process will generally be managed automatically by the terminal without the need for user intervention. However, in some instances, users will need to manually repoint their devices to the appropriate satellite.

  • Inmarsat C users should ensure that their local applications (e.g. data reporting) will operate correctly if they are using a different Inmarsat satellite and are advised to contact their applications provider for any support.
  • Classic Aero and Swift 64 users are advised to contact their equipment manufacturers to confirm whether a configuration update will be required to support the migration.

Each migration step will cause a short outage while services are moved onto the corresponding satellite. Under supervision of the International Mobile Satellite Organisation (IMSO), the Global Maritime Distress Safety System (GMDSS) and Maritime Safety Services will be closely monitored during the migration, as will the Classic Aero Safety Service. These safety services will be restored first with the highest priority.

Final date for the transition of services from IOR – I3 satellite to EMEA I-4 satellite will be confirmed approximately six weeks in advance.

We will continue to communicate with you throughout the planning and execution phases of the migrations, providing additional details as and when necessary.

If you have any questions or concerns, please contact your Inmarsat representative, who will be able to assist.

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