My Service Support

How to Hide Your Number When Making a Call

Updated 2026-08-24 · 1032 words

Be the first to rate this page

You can hide your phone number on an outgoing call by using your carrier’s verified per-call blocking method or by turning off outgoing caller ID in your phone settings. The recipient will usually see a label such as Private, Blocked, or Unknown, but hiding caller ID does not guarantee anonymity.

The available method depends on your carrier, phone, account, and destination. Use number hiding only for lawful purposes, and remember that some calls may still transmit identifying information.

How do you hide your number for one call?

Per-call caller ID blocking hides your number for one outgoing call without changing the setting for later calls. Caller ID is the information sent with a call so the recipient can see the caller’s number or name.

  1. Find the official caller ID blocking instructions from your mobile or landline carrier.
  2. Confirm that the instructions apply to your type of service and the country you are calling from.
  3. Enter the carrier’s verified blocking prefix before the destination number, exactly as instructed.
  4. Place the call and check that the recipient sees a private or blocked-caller label.
  5. Make the next call normally if you want your number to appear again.

Do not rely on a prefix remembered from another carrier or copied from an unverified source. Blocking codes can differ by carrier, service type, and region. If you are searching for how to block caller ID for one call, verify the prefix through the carrier’s official support materials before dialing.

How do you hide caller ID on iPhone?

On many iPhones, the outgoing caller ID control is located in Settings under the Phone or Apps area. The exact path can change with the iOS version and carrier configuration.

  1. Open Settings.
  2. Look for Phone directly, or open Apps and then select Phone.
  3. Select Show My Caller ID if that option appears.
  4. Turn Show My Caller ID off.
  5. Place a test call to someone who has agreed to help, then confirm how the call appears.

If Show My Caller ID is missing, dimmed, or cannot be changed, the carrier may control the setting. A managed phone or account restriction may also prevent changes. Contact the carrier through an official support channel instead of installing an app that claims to hide the number.

Turning off this setting generally affects later outgoing calls until you turn it on again. Check the setting before an important call if the recipient needs to recognize your number.

How do you hide caller ID on Android?

On Android, the caller ID setting is usually inside the Phone app’s calling or supplementary-service settings. Menu names differ by phone manufacturer, Android version, carrier, and whether the device has more than one SIM.

  1. Open the Phone app.
  2. Open its menu and select Settings.
  3. Look for Calls, Calling accounts, Carrier call settings, Supplementary services, or Additional settings.
  4. Select the correct SIM or calling account if the phone asks.
  5. Open Caller ID and choose the option that hides your number.
  6. Make a test call to a willing recipient and confirm the result.

If there is no Caller ID menu, search the phone’s Settings for “caller ID,” but do not assume every result controls outgoing calls. Features that identify incoming callers or filter spam are different from outgoing caller ID blocking. Your carrier may need to make the change when the Android option is unavailable.

How do you ask your carrier to block caller ID?

Account-level caller ID blocking may be useful when you want your number hidden on most outgoing calls or when the phone does not offer a caller ID switch. This setting is applied by the carrier to the line rather than only to one device.

  1. Use the carrier’s official app, account portal, support materials, or verified customer-service channel.
  2. Ask whether permanent outgoing caller ID blocking is available for your exact line and service type.
  3. Ask whether the change applies immediately, to every line, or only to the selected line.
  4. Ask for the official method that allows your number to appear on one call when needed.
  5. After the change, test both a blocked call and the single-call display method with a willing recipient.

The account holder may need to authorize the change. Do not share passwords, full verification codes, or other account secrets with anyone who contacts you unexpectedly.

Why does hiding your number sometimes not work?

Hiding your phone number when making a call changes what is normally shown on the recipient’s caller ID. It does not erase call records or prevent every network or organization from receiving identifying information.

  • Carrier restrictions: The carrier, account type, destination, or network may not support caller ID blocking.

  • Private-call rejection: Some people and organizations automatically reject calls marked Private, Blocked, or Unknown.

  • Emergency calls: Emergency services may receive identifying or location information even when caller ID is hidden. Never test number hiding by calling emergency services.

  • Toll-free numbers: The organization receiving a toll-free call may receive the originating number through network systems even when ordinary caller ID is blocked.

  • Authorized organizations: Carriers, emergency authorities, and certain organizations may still obtain identifying information when law or network rules permit it.

If a call will not connect while caller ID is hidden, turn caller ID back on and try again, or use another legitimate contact method. Do not use number hiding to impersonate someone, evade lawful restrictions, or mislead the recipient.

How do you turn caller ID back on?

To restore caller ID for all outgoing calls, reverse the setting used to hide it. On iPhone, return to Show My Caller ID and turn it on. On Android, return to the outgoing Caller ID menu and choose the option to show your number or use the network default.

If the carrier placed an account-level block on the line, use the carrier’s official support channel to remove it. The carrier may also provide an official prefix that displays your number for one call while leaving account-level blocking active. Verify that override prefix directly with the carrier rather than guessing it.

After changing the setting, call a willing recipient and ask what appears. A saved contact name may appear because of the recipient’s address book, so confirm whether the actual number is visible when testing.

Was this page helpful?

Be the first to rate this page