Is there a place to check if I'm opted in to Apple shipping text notifications?

I purchased my iPhone 5 on launch early in the morning and it is still at processing. I honestly don't remember seeing if there was a text message notification opt in. Yesterday I saw that Apple will send your phone number a text when your purchase ships. Is there a place to see if I'm opted in to text notifications or not?

I hope there is, I've been checking my order status once a hour when I'm up waiting for my phone to ship.

(Ordered 3.5 hours from start and am at 2 weeks to ship, oct 5 delivery)