Hide Phone Numbers on iPhone (Caller ID Settings)
To keep your number from appearing on supported outgoing calls, open Settings → Apps → Phone → Show My Caller ID and turn the setting off. This asks your carrier to suppress caller ID; it does not make calls anonymous. If the control is missing or your number still appears, check the correct line and ask your carrier whether blocking is supported.
If you want more privacy on calls, the key is knowing which setting actually controls what recipients see. On iPhone, caller-ID blocking is a request handled by your carrier and the receiving network, not a change to your Apple Account or contact card. The steps are simple, but support can vary by carrier, plan, and region.
I recommend changing the setting, then testing it with someone who agrees to help. That gives you a clear result without risking an emergency call or relying on assumptions.
Check Carrier Support and Select the Correct Line
Caller-ID blocking is a service setting for a phone line. Before changing anything, confirm that your carrier supports hiding caller ID on outgoing calls and identify which SIM or eSIM line you use. This matters most on an iPhone with more than one line.
Start by checking your carrier’s support pages or contacting customer service. Ask specifically about outbound caller-ID blocking for your plan and the line you intend to use. Some carriers let you control it on the phone; others may need to enable or manage it on their network.
If your iPhone has multiple lines, check the line selected for the call. Your setting or carrier support may apply differently across lines. A call made from a work eSIM, for example, may not follow the same rules as a call from your personal line.
| What to check | Why it matters | Next step |
|---|---|---|
| Carrier and plan | Blocking may not be available on every service | Ask whether outbound caller-ID restriction is supported |
| SIM or eSIM used | Each line can have separate service settings | Confirm the active line before testing |
| Country and destination | Blocking methods and rules differ by region | Use your carrier’s instructions for your location |
| Recipient’s network | It may display, label, or reject blocked calls differently | Test with a consenting contact |
A phone setting cannot add a feature your carrier does not support. Confirming the line and service first can save time when troubleshooting.
Set Caller-ID Blocking and Understand Its Limits
Turning off Show My Caller ID asks the carrier to withhold your number on supported outgoing calls. It is a privacy request, not a way to become anonymous. Your carrier still handles the call, and some services may receive identifying information under applicable rules.
On current iOS versions, use this path:
- Open Settings.
- Tap Apps.
- Tap Phone.
- Tap Show My Caller ID.
- Turn the switch off.
On older iOS versions, the path may be Settings → Phone → Show My Caller ID. Menu names can vary by iOS version, so use Settings search if you do not see the option. Search for “Show My Caller ID” or “Caller ID.”
If the setting is dimmed, missing, or will not stay off, your carrier may control it or may not offer the feature for that line. Contact the carrier and ask how to request outbound caller-ID restriction. Do not assume a missing switch means your number is already hidden.
For a single call, *67 before the destination number is commonly used in the United States and Canada where supported. Prefixes vary by country and carrier, so check local instructions before relying on one. A prefix may be useful when you want to block one call without changing a persistent setting.
| Method | Best for | Important limit |
|---|---|---|
| Turn off Show My Caller ID | Repeated calls when your carrier supports the setting | May be unavailable or controlled by the carrier |
| Dial *67 before a number | One call in supported U.S. or Canadian networks | Availability and behavior vary; confirm with your carrier |
| Ask the carrier to enable blocking | Missing, dimmed, or ineffective iPhone setting | The carrier must support the request for that line |
The recipient may see “No Caller ID,” “Private Number,” or another label, or may not receive a completed call. A person or organization can also choose not to answer blocked calls. Caller-ID blocking does not remove your number from your carrier’s records.
Test the Setting Without Calling Emergency Services
A safe test uses a consenting contact or voicemail service and checks what caller information appears. Do not call an emergency number to test privacy settings. Emergency services may receive caller or location information under applicable systems and rules, even when caller ID is blocked.
After turning the setting off, place a normal call to someone who knows you are testing. Ask what appeared on their phone. If you prefer not to involve a contact, check whether your carrier offers a suitable test or voicemail option.
Try one call from each line if you use multiple SIMs or eSIMs. Confirm which line made each call, since a test from one number does not prove that another line has the same setting.
If the Number Still Appears
A result that does not match your expectation can have several causes. The setting may not be supported, the wrong line may have been used, or the carrier may not have applied the request. The recipient’s network may also handle caller-ID information in a different way.
Check these points in order:
- Confirm Show My Caller ID is off for the iPhone.
- Confirm the call used the intended SIM or eSIM.
- Check that the carrier supports blocking for that line and plan.
- Ask the recipient what appeared, rather than assuming the call displayed your full number.
- Contact the carrier if your number still displays after these checks.
Avoid repeated tests to emergency numbers, and do not use third-party “anonymous calling” or spoofing services as a workaround. Such services can expose data, fail to block caller ID, or conflict with carrier rules or law.
Verify Results With the Carrier
The carrier is the best source for confirming whether caller-ID blocking is active on a specific line. If the iPhone control is unavailable or a test call still shows your number, ask the carrier to check the line’s outbound caller-ID setting and explain how to apply it.
When you contact support, have the relevant line and account details ready. Describe what you changed and what the test recipient saw. Ask whether the restriction applies to all outgoing calls or only calls made with a carrier-approved prefix.
Illustrative Troubleshooting Scenarios
These examples show how to reason through common outcomes; they are not claims about a particular carrier or customer.
- The switch is missing: You check the iOS path and search Settings, but cannot find the control. The useful next step is to ask the carrier whether it manages outbound caller-ID blocking for your line.
- One line hides the number, another does not: Your iPhone has a personal line and a work line. Test each one separately, then ask each carrier about its own service settings.
- The setting is off, but a contact reports seeing your number: Confirm the line used and the carrier’s support. A working phone switch alone does not prove the network applied the block.
- A business contact does not answer: Some people and organizations screen or reject calls with withheld caller ID. If the call matters, use a method that lets the recipient identify and return your call.
The useful measure is not whether your screen shows a privacy setting. It is whether the intended line, carrier, and recipient behave as expected.
Common Questions About Hiding Caller ID
These quick answers cover the most common iPhone caller-ID questions. The central point is consistent: iPhone can request that a supported carrier withhold your number, but the carrier and receiving network determine how that request is handled.
Does turning off Show My Caller ID make me anonymous?
No. It asks the carrier to withhold your number from supported recipients. Your carrier still handles the call, and some services may receive identifying information.
Where is Show My Caller ID on iPhone?
On current iOS versions, go to Settings → Apps → Phone → Show My Caller ID. On older versions, try Settings → Phone → Show My Caller ID.
Why is Show My Caller ID missing or dimmed?
Your carrier or plan may not support the setting, or the carrier may control it. Ask the carrier about outbound caller-ID blocking for the specific line.
Does *67 work on iPhone?
In the United States and Canada, *67 is commonly used before a number where the carrier supports it. Prefixes and results vary by country and carrier, so confirm the local method first.
Will caller-ID blocking work on every call?
Not necessarily. Support depends on the carrier, line, destination, and receiving network. Some recipients may also reject calls with withheld caller ID.
Can I hide my number for just one call?
Where supported, use the carrier-approved per-call prefix, such as *67 in the United States and Canada. Check with your carrier for the correct prefix in your region.
Will emergency services see my number if caller ID is blocked?
Do not rely on blocking for emergency calls. Emergency services may receive caller or location information under applicable systems and rules.
Does changing my contact card hide my number?
No. Editing your iPhone contact card does not control caller ID sent on cellular calls.
Will Airplane Mode hide my caller ID?
No. Airplane Mode affects wireless connections; it is not a caller-ID blocking setting for cellular calls.
What should I do if my number still appears?
Check the iPhone setting and the line used, then ask your carrier to verify outbound caller-ID restriction. Test only with a consenting contact or suitable voicemail service.
For a reliable result, check carrier support, apply the setting to the correct line, and verify it with a safe test. If the option is absent or the test fails, the carrier can tell you whether blocking is available and how to request it.
(This article was written by one of our staff writers, Richard Montclair. Visit our Meet the Team page.)
