Yes, it is possible to keep your existing phone number when switching to Virgin Mobile. This process is commonly referred to as "number porting." To retain your number, you will need to obtain a Porting Authorization Code (PAC) from your current mobile service provider. This code is typically valid for a limited time, so it is essential to request it shortly before your switch.
Once you have the PAC, you will provide it to Virgin Mobile during the activation process of your new service. Virgin Mobile will handle the porting for you, and your existing number should be transferred to their network within a specified time frame, usually within one working day. It is recommended to ensure that your old account remains active until the porting process is complete to avoid any disruption to service.
For more detailed information regarding this process, you may want to check Virgin Mobile's official website for the most current guidance and requirements.