Yes, it is possible to port your number from another network to O2. The process of porting a mobile number is generally straightforward. First, you need to obtain a PAC code from your current mobile provider. A PAC code is a unique code that allows you to transfer your number to a new network. You can usually request this PAC code through your provider's customer service or directly from their website.
Once you have received the PAC code, you can provide it to O2 when you set up your new account or when activating your new SIM card. O2 will take care of the rest and ensure that your number is transferred over from your old network. It typically takes one working day to complete this process.
It is advisable to ensure that your old account remains active during the porting process, as interruptions can lead to complications. For the latest procedures and to confirm any specific requirements, you may want to visit the O2 website where up-to-date information is available.