要轉到PP并保留號碼，可直接找PP做port-in，不必通過代理

如果找代理做port-in的話，需要提供如下資料：

Customer Contact Number
Phone Number to Port
ESN
ESN confirm
Current Carrier
Account Number
Account Pass Code
Account Holder's First Name
Account Holder's Last Name
Billing Address
Billing City
Billing State
Billing Zip

If this is a business phone:
Business Name
Phone User Name
Authorized Signer