While I was looking for my IMEI number on the iPhone I found a secret shortcut code list; codes that you dial into the phone.
Here are some of those codes – including…
How to find your iPhone IMEI number.
- *#06# – Displays your IMEI
- *777# and tap Call – Account balance for prepaid iPhone#
- *225# and tap Call – Bill Balance (Postpaid only)
- *#43# and tap Call – Determine if call waiting is enable
- *#61# and Press Call – Check the number for unanswered calls
- *#67# and Press Call – Check the number for call forwarding when the iPhone is busy
- *3282# and Press Call – See your data usage
- *#31# and Press Call – Outgoing caller ID
- *729 and Press Call – Make a payment
- *67 and Press Call – Block caller ID
You can get these and more from an iPhone application – Secrets for iPhone Lite
Hope this helps