How to Mask Your Phone Number When Calling

To hide your phone number on an outgoing call, use your carrier’s caller ID blocking code or turn off caller ID in your phone’s calling settings. The recipient will usually see “Private,” “Anonymous,” or a similar label instead of your number, but blocking is not guaranteed for every call.

If you are asking “how to mask my phone number when calling,” start with a test call to someone you trust. Carrier rules, phone settings, and the type of number being called can affect whether masking works.

What does phone number masking mean?

Phone number masking, in this context, means caller ID blocking: your carrier withholds your number from the caller ID information normally shown to the recipient during an outgoing call.

Masking does not change your real number. It also does not create or display a different number. Making another number appear on caller ID is commonly called spoofing, which is different from blocking caller ID and is not covered here.

Caller ID blocking only limits what the recipient ordinarily sees. Your mobile carrier still knows which line placed the call, and some recipients or organizations may receive identifying information under applicable rules. Do not treat a “Private” label as a guarantee of anonymity.

How do I mask my number for a single call?

A carrier-supported blocking code can hide caller ID for one outgoing call without changing the setting for later calls. In the United States, the commonly supported code is *67, but availability varies by carrier, account type, location, and destination.

1. Open the Phone app and select the keypad.
2. Enter *67 before the complete number you want to call.
3. Place the call normally.
4. After the call ends, make later calls without the code to show your number again.

If the call does not connect or your number remains visible, do not keep guessing other codes. Check the caller ID blocking instructions provided by your carrier or ask the carrier whether per-call blocking is available on your line.

A saved contact normally does not need to be edited. Enter the blocking code and the destination number manually when you need privacy for only one call.

How do I mask a phone number on iPhone?

On an iPhone, the caller ID control is usually located in the Phone settings. The exact path can differ by iOS version and carrier configuration.

1. Open Settings.
2. Look for Apps, then Phone; on some versions, Phone appears directly in Settings.
3. Select Show My Caller ID.
4. Turn off Show My Caller ID.
5. Make a test call to someone you trust before relying on the setting.

If Show My Caller ID is missing, grayed out, or cannot be changed, the carrier may control caller ID blocking for that line. Restarting the iPhone can clear a temporary settings problem, but it cannot remove a carrier restriction. Contact the carrier and ask whether outgoing caller ID can be blocked on your account.

To restore normal caller ID on an iPhone, return to the same setting and turn Show My Caller ID back on. Test again if your number must appear on an important call.

How do I mask a phone number on Android?

On Android, caller ID settings are usually inside the Phone app under calling accounts, supplementary services, or additional settings. Menu names vary by device maker, Android version, carrier, and the Phone app being used.

1. Open the Phone app.
2. Open its menu and select Settings.
3. Look for Calls, Calling accounts, Supplementary services, or Additional settings.
4. If the phone has more than one SIM or line, select the line you will use.
5. Choose Caller ID or Show your caller ID.
6. Select Hide number, then make a test call to someone you trust.

If no caller ID option appears, search the phone’s Settings for “caller ID.” When the setting remains unavailable, ask the carrier whether caller ID blocking is supported and whether the carrier must enable it.

To show your number again on Android, return to Caller ID and choose Show number or Network default. “Network default” follows the carrier’s current setting, so test it if displaying your number matters.

When does number masking not work?

Caller ID blocking can fail or be unavailable even when the phone setting appears correct. Common limits include:

• The carrier or account does not support per-call or permanent caller ID blocking.
• The recipient rejects anonymous or private calls, so the call may not ring or may be sent elsewhere.
• Emergency services may receive identifying and location-related information needed to handle the call.
• Toll-free numbers may receive information used to identify or route callers even when ordinary caller ID is blocked.
• Businesses, government bodies, and other organizations may receive identifying information when law, safety procedures, or telecommunications systems permit it.
• Calls placed through workplace systems, internet calling apps, or managed devices may follow settings controlled by the organization rather than the phone.

Masking should not be used to evade identification, safety controls, harassment protections, emergency procedures, or lawful requests. If a recipient blocks private calls, use a normal caller ID or another appropriate contact method.

How can I confirm my phone number is hidden?

Confirm caller ID blocking with a harmless test before making an important call. Do not test by repeatedly calling strangers or organizations.

1. Ask a trusted person for permission to make a brief test call.
2. Use the same phone, SIM or line, and dialing method planned for the important call.
3. Ask what appeared on the receiving screen without giving them the expected answer first.
4. If the number appeared, review the setting or confirm the correct per-call procedure with the carrier.
5. Repeat the test after making one change at a time.

For a one-call code, normal caller ID should return automatically on the next call made without the code. For an iPhone or Android setting, manually choose Show number, enable Show My Caller ID, or return the option to Network default. Make a final test call if you need to be certain your number is visible again.