A confirmed address is an address that has been reviewed by PayPal and found to be safe based on information related to the address. For example, a credit card billing address is confirmed because PayPal can check that the address is the same as the address on file at the credit card company.
PayPal provides confirmed addresses to help sellers make informed decisions when sending goods. As a general rule all accounts have at least one confirmed address and using an account will help increase the number of available confirmed addresses in the account.
WHAT IS A CONFRIMED ADDRESS? 