Can i use old ds 160 number for new application

The DS-160 is an online application form for a non-immigrant visa, and once you've submitted it, the number is tied to your specific application.

According to the U.S. Department of State's Bureau of Consular Affairs, you cannot reuse a DS-160 number for a new application. Each DS-160 number is unique and is linked to a specific application.

If you need to apply for a non-immigrant visa again, you will need to create a new DS-160 application and submit a new application fee. You will also need to provide new biometric data (fingerprints) and may need to provide additional documentation.

However, if you're applying for a different type of visa or a renewal of your existing visa, you may be able to use some of the information from your previous application. In this case, you can use the "Save and Exit" feature on the DS-160 form to save your progress and come back to it later. This way, you won't have to start from scratch, but you will still need to submit a new application and pay the application fee.

It's always a good idea to check with the U.S. embassy or consulate where you plan to apply for the most up-to-date information on visa application requirements and procedures.