There is no universal USSD code that enables phone tracking for all devices or users. Phone tracking via USSD is typically managed by authorized applications and supported by mobile carriers in specific circumstances, such as device recovery, and often requires prior configuration and permission[3]. However, there are USSD codes and secret dialer codes that provide information potentially related to tracking, security, and call forwarding, which users sometimes associate with being “tracked” or monitored.
Common USSD codes and device codes relevant for detecting phone monitoring or redirection include:
- *#21#: Checks if your calls and messages are being forwarded (often cited for detecting monitoring)[1][2][6].
- *#62#: Displays which number calls are being forwarded to if your phone is unreachable[1][2][4].
- *#67#: Checks call forwarding when the line is busy[1][2][4].
- ##002#: Cancels all call forwarding associated with your number[1][2].
- *#06#: Shows the IMEI (International Mobile Equipment Identity) – necessary for official tracking if your phone is lost or stolen[1][2][6].
Some Android secret codes are also referenced for more technical checks:
- *#*#4636#*#*: Reveals detailed phone status and connected network information (may indicate suspicious connections)[1][5].
- *#*#1472365#*#*: Checks the UMTS Cell Environment; can display the serving cell and possible tracking data for skilled users[1][6].
According to patent literature, true USSD-based real-time tracking (where a phone’s precise location is updated and accessible remotely) relies on integration between a mobile device, carrier infrastructure, and authorized applications. Such a USSD code is not standardized or universally available for consumer use; instead, it is typically implemented through a combination of mobile applications and carrier-side services[3].
Caution: No USSD code available to the general public will secretly track another person’s location; such actions are governed by legal and privacy regulations. The codes above help users secure their phones or check for forwarding and potential monitoring, but they do not enable covert real-time location tracking without authorization. Always use these codes and features responsibly and with respect for privacy laws.
References
- [1] Codes to Check If Your Phone Is Tapped – Clario.co
- [2] How to Tell If Your Cell Phone Is Tapped – Armour Cybersecurity
- [3] USSD enabled mobile tracking – Google Patents
- [4] 12 USSD codes to Detect/Deactivate Call Tapping – YouTube
- [5] Android Secret Codes for Mastering Your Phone – iFixScreens
- [6] 7 Codes to Check if Phone is Hacked or Tapped (and What to Do)