As Inmarsat was founded as a maritime communications operator, our first wholly-owned constellations – the Inmarsat-2 (I-2) and Inmarsat-3 (I-3) series – were positioned above the world’s sea-lanes to form four ocean regions.
In 2018, we carried out a successful migration of our Inmarsat C, Mini C and Fleet 77 services to:
Following the full deployment of the Inmarsat-4 (I-4) satellite constellation in 2009, a further three satellite regions were created over the Earth’s major landmasses.
Alphasat was launched in 2013 to supplement the I-4 network, at 24.9° East.
The Inmarsat-5 (I-5) satellites power our high-speed Global Xpress broadband service. Launched between 2013-2015, the constellation of three satellites covers the following regions:
I-5 F4 was launched on 15 May 2017 to provide additional capacity and resilience to our Global Xpress network.