Dialing the code *#31 on your phone will disable your Caller ID, also known as Calling Number Display (CND). This means that when you make outgoing calls, your phone number will appear as "Private," "Unknown," or "Restricted" to the recipient, rather than displaying your actual number.
Understanding Caller ID and Its Purpose
Caller ID is a telephone service that transmits the caller's phone number to the recipient's phone during an incoming call. It allows the person receiving the call to see who is calling before they answer. This service is standard on most modern phone lines and mobile devices, providing convenience and helping to screen unwanted calls.
Why Disable Caller ID?
While Caller ID is generally beneficial, there are specific situations where you might choose to disable it:
- Privacy Concerns: If you want to make a call without revealing your personal number.
- Professional Reasons: Businesses or individuals who prefer to present their number as private for specific outgoing calls, especially if they don't want direct callbacks to their personal line.
- Avoiding Unwanted Callbacks: For one-off inquiries or situations where you don't wish to receive return calls to your main number.
How to Re-enable Caller ID
After disabling your Caller ID, you can easily re-enable it using a couple of methods:
- Using a Dial Code:
- To re-instate your Caller ID service, simply dial *31# on your phone. This code typically reactivates the service immediately.
- Through Phone Settings:
- On iPhones, you can manage your Caller ID settings directly through the phone's menu. Navigate to Settings > Phone to find options related to Caller ID (often labeled "Show My Caller ID").
Summary of Caller ID Codes
For quick reference, here's a summary of the common codes related to Caller ID functionality:
| Action | Dial Code | Effect |
|---|---|---|
| Disable Caller ID | *#31 | Your number appears as "Private" on outgoing calls |
| Re-enable Caller ID | *31# | Your number is displayed on outgoing calls |
For more information on secret codes that unlock hidden features on your phone, you can refer to resources like PCMag's guide on 12 Secret Codes That Unlock Hidden Features on Your Phone.
