Air China Limited has greatly expanded its service network by partnering with world famous airlines in many countries and regions around the globe through Star Alliance. Using code share cooperation, Air China has increased its route coverage all around the world. According to Air China's flight information statistics compiled by the SSIM file for June 1, 2012, Air China has code share relationships with 28 airlines, accounting for 451 routes and 9,379 weekly flights added to its network, which cover 28 countries, 3 regions and 167 airports.If you find the following flight numbers on your tickets, you will be served by the partner airlines of Air China Limited, which means that the flights are operated by the partner airlines of Air China and you need to check-in at the counters of our partner airlines.