To hide your phone number when making a call, you have several options depending on your device and carrier:

For Android Phones

1. Use a Prefix Code for One-Time Calls

• Dial *67 before the phone number you want to call. This will block your number for that single call, showing it as "Private" or "Blocked" on the recipient's phone. You must enter *67 before every call you want to keep private

• In some regions, such as India, the prefix code might be #31# instead of *67 (e.g., #31#1234567890)

2. Change Caller ID Settings to Hide Number Permanently

• Open the Phone app.
• Tap the menu (three dots) and go to Settings > Calls or Supplementary services.
• Find Caller ID or Show my caller ID.
• Select Hide number or Never to block your number for all outgoing calls.
• To show your number for a specific call after this, dial *82 before the number

3. Contact Your Mobile Carrier

• Ask your carrier to enable permanent caller ID blocking on your account. Some carriers also provide apps to manage this feature

4. Use Third-Party Apps

• Apps like Burner, Hushed, or Dingtone can provide temporary numbers and control over caller ID for additional privacy

Limitations:

• You cannot hide your number when calling emergency services (e.g., 911) or toll-free numbers

• Some recipients may have settings to block calls from private or unknown numbers

For iPhones

• You can hide your number by going to Settings > Phone > Show My Caller ID and turning it off (if supported by your carrier).
• Alternatively, dial *67 before the number to block your number on a per-call basis

Summary Table

Method| How It Works| Scope| Notes
---|---|---|---
Dial *67 or #31# prefix| Blocks number for one call| Single call| Must dial before each call
Phone Settings Caller ID Hide| Blocks number for all outgoing calls| All calls| Can override per call with *82
Carrier Service| Permanent block via carrier| All calls| May require account setup
Third-Party Apps| Use temporary numbers| Flexible| Adds extra privacy features

Use these methods to keep your phone number private when calling, depending on your needs and device