Hi Philip,
Re your comments on Afghanistan, my understanding is that overflights require prior approval from the Afghanistan Ministry of Trabsport and Civil Aviation. However the actual air traffic control is done by the US Air Force on invitation of the Afghanistan Government.
Because there is no radar coverage, only a very basic service is provided with little flexibility. For example, they require 10 minute spacing between aircraft on the same route at the same level. If there was another aircraft ahead at the same level, you aircraft would be denied access until ten minutes after that aircraft had entered Afghanistan airspace. You can see that if there was more than one aircraft ahead the delay would blow out very quickly!
Out of interest, if the flight display you posted is accurate, it looks like you took route L750 as displayed on the attached chart.
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