Xi' an railway bureau, what should I add to the telephone external network dialing?

In this case, it is recommended to call the customer service center of China Railway Xi Bureau Group Co., Ltd. 12306! The method is: dial the long-distance area code of Xi 'an Security Bureau 029 first, and then dial 12306 to select manual customer service consultation. If it is an in-road telephone, just directly consult the in-road enquiry telephone number 1 14.