Generally, your phone should be active within a couple of minutes; however, the activation process may take up to an hour. Also, if you are trying to upgrade your Straight Talk phone, it may take up to 24 hours. Moreover, if you are transferring (porting) your current phone number from another service provider to Straight Talk, it may take up to 7 days. And if you are porting a landline, the process may take around 30 days.