I recently stumbled across a very interesting article on HubPages , written by info4all. The article, titled “Secret iPhone Service Codes,” provides a short list of some of the “codes” Apple and AT&T have integrated into the iPhone, allowing phone service information to be accessed using the phone application’s keypad.
To use these “codes” (if they can be called that,) open up your iPhone’s keypad, and type one of the codes listed below. Hit the call key to execute the command.
Basic iPhone Information
Use these shortcuts to view information about your iPhone’s core functionality:
*3001#12345#* : Enter Field mode. Field mode reveals many of the inner settings of your
iPhone, specifically up-to-date network and cell information.
*#06# : Displays your iPhone IMEI, the unique identifier for your cell phone hardware.
(No need to tap Call.) Together with your SIM information, it identifies you to the provider
network.
Service Shortcuts
These shortcuts provide quick access to information about your account:
*225# : Bill balance. (Postpaid service only; the acronym is BAL for balance.)
*777# : Review account balance for prepaid iPhones on the GoPhone plan.
*646# : Check remaining minutes. (Postpaid service only; the acronym is MIN for
minutes.)
*3282# : Check your data usage. (Postpaid service only; the acronym is DATA.)
*729 : Make a payment. (The acronym is PAY.)
611 : Connect to customer service.
While you can undoubtedly use your iPhone to its fullest without ever having to enter one of these codes, I just thought it was pretty cool that items such as bill balance can be accessed straight from the iPhone.
[HubPages ]

July 26th, 2009 at 6:11 am
Way cool! Thanks!!
July 26th, 2009 at 8:12 am
Some of these are not secret – settings->phone->att services
July 26th, 2009 at 4:54 pm
*NEW# checks your upgrade eligibility
July 26th, 2009 at 7:55 pm
These commands can be used on any AT&T phone. These aren’t secrets. They’ve been advertising them on the website since they starting using them a couple years ago.
No news here.
July 27th, 2009 at 12:06 am
Hey, thanks for the idea dude. These codes are similar to other cell phones, I don’t have any clue about it on iPhone. Accrossing your blog, and you have a post told me that they are codes that can be used on iPhone. Thanks again.
November 5th, 2009 at 8:53 pm
Already shared your post here at twitter, I think this would be useful for people.
Thanks.
Andriy
May 2nd, 2010 at 10:50 pm
I have Verizon..
And after a bit of trial and error… Verizon does not use the * before any of these codes anyways.
- But uses the #key Only before putting in the Code Numbers.
#646.. etc etc
but sure was and IS Very Helpful Information to Have!!
Thanks!