1. To locate your PCN or authorization number, log in to the Volume Licensing Service Center at: https://www.Microsoft.com/licensing/servicecenter
2. From the Subscriptions tab, select Visual Studio Subscriptions.
3. The PCN or Public Customer Number is located halfway down the page.
If you are not seeing the above page and are being redirected to the Visual Studio sign-in page, please copy and paste the following link into your browser: https://www.microsoft.com/Licensing/servicecenter/Subscription/AgreementSearch.