The code *#21# is a USSD (Unstructured Supplementary Service Data) code, which is used on mobile phones to access certain features or information. When dialing this code on an iPhone or Android device, it retrieves information related to call forwarding settings on the phone.
Specifically, *#21# allows users to check if call forwarding is enabled or disabled on their device. Call forwarding is a feature that redirects incoming calls to another phone number. By dialing this code, users can verify whether their calls are being forwarded to another number without their knowledge or consent.
However, it is important to note that *#21# does not provide any information about whether a phone has been tapped or wiretapped. The code only reveals the current status of call forwarding settings on the device. It does not provide any indication of surveillance or unauthorized access to the phone.
Furthermore, the concept of “phone tapping” or wiretapping typically involves intercepting and monitoring phone conversations without the knowledge or consent of the phone owner. This is a complex and highly regulated process that typically requires legal authorization.
In general, it is not possible to determine if a phone has been tapped or wiretapped simply by dialing a code like *#21#. Detecting such surveillance activities usually requires specialized equipment and expertise, and it is typically the domain of law enforcement or intelligence agencies.
It is worth mentioning that modern smartphones have built-in security features and encryption protocols to protect user privacy and prevent unauthorized access to phone conversations and data. However, these measures may not provide complete protection against sophisticated surveillance techniques employed by certain entities.
While *#21# can provide information about call forwarding settings on a phone, it does not reveal whether a phone has been tapped or wiretapped. Determining if a phone has been subjected to surveillance requires more advanced means and is typically beyond the capabilities of an average user.