Discount interval code usually refers to the discount interval code used by train ticket discount cards, also known as "discount interval code". It consists of 13 digits, and the first 6 digits are administrative region codes, representing different administrative regions; The last 7 digits are sequence codes, which are used to indicate specific stations or railway lines.
For example, the code of the preferential zone is "G00000 1-G99999", where "G" stands for Guangzhou, then "G00000 1" stands for Guangzhou Railway Station and "G99999" stands for Guangzhou South Railway Station.
Therefore, if you want to know the meaning of a specific ride discount interval code, you only need to use the first six digits as the administrative area code.