I am not familiar with porting but from what I have read this is normal. Your port won't take affect until after you have activated the SIM, you would get a temporary number for my understanding and once activated you would complete the port after. Your service won't begin until you have activated, the day you activate starts your billing cycle. DO NOT cancel your current service until after the port is successful, actually the port will cancel the service for you. There is more information on how to port at www.visible.com and go to the help tab and look for porting information.
