If you own an iPad or iPad 2 WiFi + 3G model and you need to talk to your carrier about anything involving cellular data, you’ll need to know your Cellular Data Number. It’s one of the first things you’ll be asked for by an AT&T or Verizon rep if you contact them for support or questions relating to your 3G data plan.
Fortunately, it’s very easy to find this number and others that your carrier may want to know on a support call.
As you can see in the screencap above, you will not find your Cellular Data Number in the Cellular Data section of the Settings app. You will find it under the Settings > General > About section, just below the Serial Number item.
Just a few spots down you’ll also see your device’s IMEI number, which the carrier may also need to know.
I realize this is a very basic tip, but it’s also that will save you a little bit of time if you’ve never had to look for the Cellular Data Number before – and any little bit of time savings on a call to AT&T or Verizon is a very good thing in my book.