China Southern Airlines is founded on 1 July 1988 by China Southern Air Holding Company. The headquarter of the airline is at Baiyun District, Guangzhou, Guangdong Province, China which the main hub is at Beijing Capital International Airport, Guangzhou Baiyun International Airport, and secondary hubs are at Chongqing, Shanghai Pudong, Shenzhen, Ürümq Airports.
They provide their service among 216 domestic and international destinations with a slogan of Fly Your Dreams. The President of the airline is Tan Wangeng. They have 618 in service aircraft like 22 Airbus A319-100, 117 Airbus A320-200, 20 Airbus A320neo, 99 Airbus A321-200, 25 Airbus A321neo, 14 Airbus A330-200, 34 Airbus A330-300, 26 Boeing 737-700, 165 Boeing 737-800, and so on. They are the only Chinese airline that operates Airbus A380 through different routes.
They have four types of services like First Class, Business Class, Premium Economy, and Economy Class with personal privacy, 17-inch personal TV, variety of lighting options, private storage cabinet with a password lock, USB port, reading light and safe food service.
You can check your PNR Status from here:
https://www.csair.com/en/tourguide/faq/online/kepiaoyanzheng.shtml