Cannot create new Developer subscription - Phone number already associated (Code: 40901)

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Hi @Andres Ferrer

Thank you for reaching out to the Microsoft Q&A forum. 

I understand how frustrating this situation can be, especially if your phone number is still associated with your old Developer account. 

Please note that, as forum moderators, we do not have access to the internal systems required to modify Developer Program profiles or unlink phone numbers from existing accounts. 

You can try visiting https://developer.microsoft.com/microsoft-365/profile using the account that was originally linked to your phone number. If you still have access, choose Delete Profile to remove the old Developer account. This may help release the phone number so you can use it again for a new registration. Please note that it can take some time, usually up to 60 days, before the number becomes available for reuse. 

If you no longer have access to the old profile or the steps above do not work, we recommend contacting Microsoft Developer Support for further assistance through the following link: Services Hub. Please note that this portal (Services Hub) is a paid ticket and access is subject to certain conditions, which you can review here: Services Hub sign in FAQs | Microsoft Learn 

If you need to create a new developer account right away, you might consider using a different phone number, such as a work mobile or secondary line, to complete the registration process immediately. 

Thank you for your understanding and cooperation. 

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