All You Need to Know About *#21# Code: Learn Its Meaning and Usage

*#21# code

In this article, we will discuss the *#21# code and understand what it is and how it is used. Additionally, we will also see how you can benefit from using this code.

What is USSD Code?

USSD stands for Unstructured Supplementary Service Data, which is a communication protocol used by GSM cellular telephones to communicate with the service provider’s computers. USSD messages are up to 182 alphanumeric characters in length, making them a useful tool for a variety of mobile services, including balance inquiries, mobile banking, and prepaid callback services.

Unlike SMS messages, USSD messages create a real-time connection during a session, allowing for two-way communication between the user and the application. This technology is commonly utilized for menu-based information services, such as mobile banking applications and balance inquiries. How to Receive Cell Broadcasting System Alerts on Your Mobile Device

What is *#21# Code?

This code is a USSD (Unstructured Supplementary Service Data) code used to obtain information about the call forwarding status of a number. If there is any call forwarding service active on your number, this code will provide you with that information.

How to Use *#21#?

  1. Open your mobile phone’s dial pad
  2. *Type #21# and dial it to the number for which you want to check the status

After this, the call forwarding status of that number will be displayed, and you can activate or deactivate it.

Benefits and Usage

By using this code, you can obtain information about any service on your number, free of charge. It helps you keep track of any activity happening with your number.

In this way, the *#21# code can be very useful for you, and you can use it free of charge. Hopefully, this article will be helpful to you.

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