The company offers additional details on what the Preferred Roaming List is and why it should be updated, to customers who want more information.228 from your Verizon Wireless phone to perform the recommended update.
You can perform both of these tasks directly from the phone itself by dialing a special number then specifying whether you wish to program or update the phone. This procedure is different for each phone, but must phones power on when press the "End" button and hold it down for approximately three seconds.
For most CDMA carriers (including Verizon), you can update your PRL by dialing *228 and selecting the appropriate option.
For example, on a Verizon phone you dial *228 and then select option 2 and listen to the horrible programming music while your phone downloads the latest PRL. The first is to contact Sprint Customer Service and get your account approved for an update and then dial *2 and follow the instructions.
The *228 procedure updates Verizon's "Preferred Roaming List," a set of instructions regarding your service's roaming capabilities.
Your phone's roaming capability is the "hand off" process between different wireless service areas.