Many people don’t know how to use Secret Codes. Rather a large number of people are not unaware that there are secret codes in Phones. In this article, I will tell you about 20 secret iPhone codes.
Every smartphone has an inbuilt code that is imparted by the manufacturer. Although these codes are there inbuilt but very often, we fail to track these secret codes and utilize them. These codes can be used for carrying out different functions and resolving errors at times. Therefore the secret code act as troubleshooting.
In case you are an iPhone user. In this article, I will tell you about several iPhone secret codes, their usage, and their features. Besides, you can visit our website for the topics like this and others.
Secret iPhone Codes Nobody Knows Yet!

There are dozens of different iPhone secret codes that are used for deriving different types of information and resolving different errors, therefore acting as troubleshooting.
1. Field Test Mode:
*3001#12345#*
In case you want to get the technical details of your network.*3001#12345#* code is meant for that. This code will help you to find the accurate strength of your signal in decibels.
Here is how this works:
*3001#12345#* will help you get the technical details of your network. You will find the accurate strength of your signal in decibels with *3001#12345#*.Â
Here is how it works:
- Make sure that your iPhone has an active cellular network.

2. Enter the code on the Dialler by opening the app.

3. Click on Serving Cell Meas on the next screen.

4. On the next screen, look at the numerical measurements behind the rsrp0.

5. All the numbers behind the rsrp are the variants of your signal strength in dBm.
Also, read All iPhone New Emojis Till February 2023
2. Hide Your Caller ID:
*31# Mobile Number
You might have received a call with no number displaying, without any caller ID. These are anonymous calls. You can also make such calls on the condition that your carrier should support this feature. You can use this code to make calls by hiding your Caller ID.
3. Check The SMS Center:
*#5005*7672#

Any SMS sent by you goes to the server or the SMS center number. You can get the SMS Center number by using this code. Here is how you can get your SMS center number:
1. Open The Dialer.
2. Enter the above given Code.
3. Press the call button.Â
And there you get the result.
4. Check Call Waiting Status:Â
*#43#
If you are not sure whether your call waiting is either enabled or disabled on your iPhone. Here is how you can find out.
1. Open the Dialer on your phone.
2. Type in the given code.

3. And press the call button.

You will get notified about your call waiting status.
5. Enable/Disable Call waiting:Â
 Use the code *43# to enable the call-waiting service.
Use the code #43# to disable the call waiting service.

After checking the call waiting status, you might want to use any of the given services according to your choice and preference. Use the codes given above to enable and disable the Call waiting.Â
Also, read iMessage Effects Like Pew Pew With Secret iPhone Texts
6. Check Call Barring Status:Â
*#33#
Call barring is a sort of service that restricts and blocks any sort of incoming call, no matter how good and stable your network connectivity is. So if you are not receiving any calls on your iPhone, check if you might have allowed the call barring service.Â
Dial *#33# on the Dialer of your iPhone.

Press the call button to see the result that will get notified on your screen.

If you want to check the call barring service on your iPhone, the given above can help you out.
7. Enable or Disable Call Barring on iPhone:Â
To Enable Call barring use: Â *33*PIN#
To Disable call barring use:Â #33*PIN#
Use Sim Pin in Place of PIN
So the added advantage of this feature is that you can put a rider on the incoming calls when you don’t want anybody to contact you. You can enable the call barring when desired and disable the call barring accordingly.
8. Check the Call Forwarding Status:Â
*#21#

Many users enable call forwarding to avoid any sort of disturbance. So you can use a secret code to enable the current call forwarding feature. If you are an iPhone user, you can check the call-forwarding feature by typing the above-mentioned code.Â
Also, read How to Delete Albums on iPhone in Under 1 Minute?
Open the Dialer on your iPhone and dial the code given.

See the result displayed on the screen of your iPhone.

9. Divert Calls to Another Number:Â
*21Number#
Replace the Phone number with the number you want to divert the call to.
This is one type of call forwarding. If you want to forward the call to any other number. Here is how you can forward the call.
Open The dialer on your iPhone.
Type the *21Phone Number #
And click on the Call button.Â
You have successfully diverted the call to another number.
10. Enable or Disable Call Forwarding:Â
*21#

If you want to enable or disable call forwarding. You need to open the dialer on your iPhone and dial *21# and press the call button. By doing so, You can enable or disable call forwarding.Â
11. Check Call Line Presentation:Â
*#30#
open the Dialer on your Phone and Type *#30#. Press the call button to continue.

You will see the call line presentation detail notified on your screen.

The service responsible for presenting the phone number at the time of the incoming call is called a call line presentation. In case the call line presentation is disabled, you can’t see the number of those who call you. To check out if your call line presentation is disabled, you can use the above give code.Â
Also, read What Does the Green Dot Mean on iPhone? Know the Secret of Tiny Green Dot
12. Show Your Mobile Number on Caller ID:Â
*82 Number you are callingÂ
In case your number is hard blocked, and your caller ID is not there up for the show. Use *82 in front of your mobile number to show your caller ID.Â
13. View IMEI Number:Â
*#06#
The International Mobile Equipment Identity number is a unique number that identifies your iPhone on a mobile network. So here are the ways to check your IMEI number on your iPhone.Â
You can use USSD Code *#06# to check the IMEI number on your iPhone. Not just your phone, You can use the same code to find out the IMEI number of any phone. Â
Open the dialer on your Phone and Type *#06#. And you will find the below-given information on your screen.

Other iPhone Secret Codes:Â
Three are certain other codes that you can use to gather information on your iPhone. Given below are some of the iPhone secret codes that you can try on your phone:Â
Use *5005*25371# to check whether the Alert System is working.
Use *5005825370# to disable the Alert System.
*3282#, You can use this code to show the information info.
*#61#, this Code shows you the number of missed calls if you are an iPhone user.Â
The Postpaid Customer can use the following codes for
*646# to show the available calling minutes.Â
*225# Use this code to see the Bill balance.
You can use the *777# to see the available balance on the Prepaid.
Also, read What Does 1X Mean on iPhone? Know the Real Meaning of It
Wrapping Up:
There happen to be many secret codes that are inbuilt to carry out certain functions. And same is the case with iPhones. Some of the codes we know, and some we don’t. In this article, I have enlisted about 20 such secret codes that you can try on your iPhone.Â