You can check the status of a Dubai visa with the help of your visa application number online but not with a passport number. The steps to do this are as follows:Step 1: Go to the official GDRFA-D (General Directorate of Residency and Foreign Affairs - Dubai) website.Step 2: From the drop-down menu called Service, click the option named u201ceDNRD Application.u201dStep 3: Enter the 8-digit visa application number. However, if you do not have one, just get it from the company or sponsor who had applied the visa for you.Step 4: Enter your first name in the small case.Step 5: Select the gender and enter your birth date in the format: DD-MM-YYYY.Step 6: From the drop-down menu, select your nationality.Step 7: Enter the given captcha code.Step 8: Click on the submit button.After doing the above, you will get to know the status of your visa from the Dubai immigration through a message.