You can check to see if your iPhone is unlocked from a carrier using any of a few different methods.

There are two types of phones—those locked to a carrier and those free to use whatever carrier they want. There will come a time when you need to know which one your phone is. Thankfully, you'll have ...

It's easy to see old notifications on an iPhone in the Notification Center, which you can open with just one swipe. Here's ...