The Satellite industry sector is going through continuous innovation since its inception in 1960s.With advancement in technology, in the space communication ecosystem we are experiencing rapid advancement. The 4th industrial revolution has started, it requires more robust and advance communication platforms to support our ambition of “Be Connected anywhere, anytime”. Various reports indicate Tens of Billion devices need to be connected over the next several years. New technological involvement requires real-time or near to real-time responses, which in turn requires much lower latency than the traditional 700ms of satellite network in Geostationary Earth Orbits (GEO). Consequently, we notice lots of focus and attention to other form of space communications and None Geo Stationary Satellite Network (NGSN)There are several numbers of providers looking on usage of MEO and LEO. Currently Star-Link is one of the front runners. This report, provides comprehensive overview of the Large Low Earth Orbit Satellite Constellations (LLEOSC), communication application with particular section on Star-link.