The number is marked, how to cancel it?

Mobile phone users of China Unicom (excluding Unicom enterprise customers and temporary network users) can log on to the code number service platform of China Information and Communication Research Institute /mark/index.html, click "Clear the wrong number mark", and correctly fill in the number, user name, account opening certificate type, certificate number, account opening time and other information. , so as to complete one-stop operations such as number tag query and automatic cancellation of wrong tags, without applying to tag service enterprises one by one.

If you have any questions, please click /qA5yV for consultation.