Why is the recruitment information in Inner Mongolia called "163"

163 is a recruitment information website in Inner Mongolia. According to the relevant information, 163 refers to a recruitment information website in Inner Mongolia, and its name is "Inner Mongolia Talent Recruitment Network", so it is called "163". This website is a professional recruitment platform in Inner Mongolia, providing job opportunities and job information in various industries to facilitate the docking of job seekers and recruitment enterprises. In addition, the domain name "163" is also the domain name of Netease, the earliest e-mail service provider in China, which has a great influence on netizens in China. Many people will associate the number "163" with Netease, email and other related words.