American Airlines Group Inc. is a holding company. Its primary business activity is the operation of a network air carrier. The Company, together with its regional airline subsidiaries and third-party regional carriers, operates under the American Eagle brand, providing scheduled air transportation for passengers and cargo through its hubs in Charlotte, Chicago, Dallas/Fort Worth, Los Angeles, Miami, New York, Philadelphia, Phoenix and Washington, District of Columbia and partner gateways, including in London, Doha, Madrid, Seattle/Tacoma, Sydney and Tokyo. Its subsidiaries include American Airlines, Inc., Envoy Aviation Group Inc., PSA Airlines, Inc. and Piedmont Airlines, Inc. Its cargo division provides a range of freight and mail services with facilities and interline connections available across the globe. It operates 925 mainline aircraft supported by its regional airline subsidiaries and third-party regional carriers, which together operated an additional 536 regional aircraft.