Once you have your PAC code all that’s left to do is give it to your new network operator so they can start transferring your number.
Many networks give you the option to set up a number transfer when you’re purchasing a new SIM Only deal, so if you have your PAC code ready before buying you can make the number transfer almost seamless.
If you already have your SIM, all you have to do is call your new network, ask for a number transfer and give them the PAC code for your old number. Some networks allow you to do this online by logging in to your customer account.
Once you give them your PAC, the transfer will begin. This process can take up to 24 hours and you will lose service until it is completed.