1, enter the Guo enterprise credit information publicity system on the computer, find its official website and click to enter;

2. After entering the website, click the enterprise information declaration button at the bottom of the page;

3. After the page jumps, click the area where the enterprise is located to enter;

4. In the page that appears, you can see the current mobile phone number after entering the business license and other information of the enterprise, and click the contact person of the enterprise to make changes;

5. Enter the original contact information and the current contact in the contact change interface that appears (the identity of both persons can be consistent), then enter the new mobile phone number and click the Save button;

6. Click OK in the pop-up system contact check dialog box;

7. At this point, you can see that the contact's mobile phone number has been changed successfully.