The device settings on your iPhone typically take care of all the major functions like call forwarding and DND, while also containing all the regulatory information about the device. However, there is an easier way to access these settings. By using a secret code, you can enable these functions using the dial pad in the Phone app. Not only that, there are a bunch of tests you can carry out on your device using these codes. So, let’s take a look at the top 10 secret dial codes for iPhones.
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In This Article
Field Mode
USSD Code: *3001#12345#*
If you want to know detailed specifications about the network strength in your area, put your phone in ‘Field Mode’ by typing *3001#12345#* in the phone app and hitting the green call icon. Once you are in Field Mode you can conduct a ‘Field Test’ for things like Neighbour Measurements, Serving Cell Info, Serving Cell Measurements, and more.
View the IMEI Number
USSD Code: *#06#
The IMEI Number is a unique 15-digit number that is assigned to your smartphone and helps it connect to the nearby cell tower. There are several ways to find your iPhone’s IMEI number, the easiest of them all being typing the *#06# code in the dialer app. If your iPhone ever gets lost or stolen you can get the police authorities to track it using its IMEI number.
Hide your Caller ID
USSD Code: #313#
Want to maintain your anonymity and don’t want to give away your name or phone number while calling someone? Your iPhone allows you to hide your Caller ID. Simply prefix the number you’re calling with #31# and hit the green call button. Even if the call recipient has your number saved in their contacts list, they will not be able to view it on their phone when you call them using this dial code. If you’re in the US, you can use the *67 dial code for this purpose as well.
Call Waiting Status
USSD Code: *#43#
This is one of our favourite secret dialer codes for iPhone. If you’re on a call and don’t want any other incoming calls to immediately get cancelled, turn on this feature. Once call waiting is turned on, the caller will be notified that you’re on another call and they will be put on hold.
Check if Call Waiting Status is enabled: *#43#
Enable Call Waiting Status: *43#
Disable Call Waiting Status: #43#
Check Missed Calls
USSD Code: #61#
Ordinarily, your iPhone does a good job of reminding you of the calls you missed while you were away or occupied with other tasks. But what about the calls you missed while your iPhone was switched off? Dial #61# for the complete list.
Enhance Call Quality
USSD Code: *3370#
If the network coverage in your area is subpar, you can use this dialer code to give the call quality a little boost. Simply go to the Phone app and dial *3370#. When you’re in a low network area, even a slight improvement in call quality can make all the difference.
Check phone balance
If you don’t have the data to use your network provider’s companion app, use these dialer codes to check your phone balance.
Jio
Check Talktime: *333#
Check Data Balance: *333*1#
Airtel
Check Talktime: *121*2#
Check Data Balance: *123*10#
Vi
Check Talktime: *199*2*1#
Check Data Balance: *199*2*2#
Call Barring
Turning on Call Barring on your iPhone disables all incoming and outgoing calls on your number. It can only be reversed when you enter the dial code to turn it off. To use this dial code, you will require your 4-digit SIM PIN. The default SIM PIN is 1111. Check your SIM documentation to know more.
Check Call Barring status: *#33#
Enable Call Barring: *33SIM PIN#
Disable Call Barring: #33SIM PIN#
Call Forwarding
USSD Code: *21(Phone number)#
Going somewhere you suspect you won’t get ideal network coverage? Just turn on call forwarding using this simple dial code. Once enabled, all your phone calls will be forwarded to your chosen phone number. You can forward your calls to your answering machine as well.
Check Radiation Level
USSD Code: *#07#
Before a new iPhone makes it to production, it is checked for radio frequency (RF) exposure. SAR (Specific Absorption Rate) is the rate at which the human body absorbs RF energy. In India, the SAR 1g limit is set at 1.6W/kg. To check your iPhone’s SAR value, simply dial the *#07# dial code.
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Conclusion
These are the top 10 secret dial codes for your iPhone that you must take advantage of. If there’s a dial code that you use frequently and think deserves to be on this list, give it a shoutout in the comments! If you own a Samsung smartphone, check out this article for all the major secret codes you can use on your device.
