A week ago, the Ministry of industry and information technology announced that China Telecom, China Mobile and China Unicom provided free SMS query services for mobile phone users across the country, which had been promoted nationwide on January 13.
Users can write
It is understood that at present, 1.6 billion mobile phone users in China can query the places where they have stayed for more than 4 hours in the previous 14 days through the above SMS method, and can query the specific cities. This message can be used as my travel certification.
More convenient now
Just enter it in a WeChat search