To track a "No Caller ID" call, the options depend on whether the call was received on a landline or a cell phone. For landline phones:
- Dial *69 (call return) to call back the last incoming call, even if the number was hidden.
- Dial *57 (call trace) to request your phone company to trace the number in cases of harassment or threats. Note that the number will be known only to the phone company and law enforcement, not disclosed to you directly, and may incur a fee.
For cell phones:
- There is no built-in feature like *69 or *57 for cell phones.
- You may need to use third-party caller ID apps like TrueCaller or TrapCall which can sometimes reveal the caller. However, these apps require permissions and share data with other users and advertisers.
- It is generally difficult to reveal "No Caller ID" numbers on cell phones without third-party services.
If the calls are threatening or harassing, reporting them to the police and phone provider is advised since only telecom providers and law enforcement have the authority to trace these hidden numbers legally. In summary, the primary ways to track "No Caller ID" calls are using *69 or *57 on landlines, or third-party apps on cell phones, with the caveat of privacy and legal limits on disclosure.
