You have probably seen No Caller ID appear when an unidentified caller rings your phone. You can make your own outgoing call display the same label when you have a legitimate reason to keep a personal number off the recipient’s screen.
The answer to how to call No Caller ID depends on whether you need privacy for one conversation or every future call. A dialing prefix provides a temporary option, while phone and carrier settings can apply the change more broadly. Each method also has limits that may affect whether the call connects.
1. What Does No Caller ID Mean When You Make a Call?
No Caller ID means the recipient cannot see your phone number or the name associated with it. Their screen may instead show No Caller ID, Private, Unknown, or Restricted.
The call is not completely anonymous. Your carrier still processes the originating number, and emergency services or authorities may obtain it in appropriate circumstances.
No Caller ID also differs from spoofing. Caller ID blocking withholds your number, while spoofing causes false information to appear. The recipient remains free to answer, reject, screen, or send the private call to voicemail.
2. How to Call No Caller ID in 3 Ways
Use a temporary method when you only need privacy once. Choose a device or carrier setting when you want the number hidden from multiple calls.
| Method | One Call or All Calls? | Device | Important Limitation |
| Caller ID blocking code | One call | Mobile phone or supported landline | Code varies by country and carrier |
| Phone setting | All standard calls | iPhone or Android | Option may be carrier-controlled |
| Carrier-level blocking | Usually all calls | Any supported line | May require account changes or a fee |
Method 1: Use a Caller ID Blocking Code
A dialing prefix can withhold your number for a single outgoing call. In the United States and Canada, many carriers support *67.
- Open the Phone app.
- Select the keypad.
- Enter *67.
- Type the complete phone number.
- Tap Call.
Example: *67 555 123 4567
This is often the simplest option for how to call No Caller ID because it does not alter later calls. Dial the next number normally when you want your Caller ID to appear again.
Codes are not universal. For example, Australia uses different prefixes, while other countries and networks apply their own rules. Confirm the correct code with your provider before an important call.
Method 2: Hide Caller ID in the Phone Settings
Use the device setting when you want multiple outgoing calls to appear without a number.
On an iPhone:
- Open Settings.
- Select Apps > Phone.
- Tap Show My Caller ID.
- Turn the switch off.
On an Android phone:
- Open the Phone app.
- Select Settings.
- Find Calling accounts, Supplementary services, or Additional settings.
- Select the correct SIM if necessary.
- Open Caller ID and choose Hide number.
The exact Android path varies by manufacturer. For how to call with No Caller ID regularly, test the change with a trusted contact before assuming it applies to every outgoing call.
Method 3: Ask the Carrier to Block Caller ID
Contact your carrier when the phone does not display a Caller ID option or when the switch is grayed out. The provider may be able to apply blocking at the network or account level.
Ask the carrier:
- Whether blocking applies to every line on the account
- Whether the service costs extra
- How to reveal the number for one call
- Whether it works with Wi-Fi Calling
- Whether international calls are included
- Which destinations ignore Caller ID blocking
After activation, make a test call. Do not assume the change is active simply because it appears in the account settings.
>>> Read more: How to Record a Phone Call: 3 Safe Methods for Any Phone
3. Why Does No Caller ID Not Work?
If your number still appears, check the following causes:
- The dialing code is unsupported: Your country or carrier may use a different prefix.
- The code was entered incorrectly: It must normally appear before the full phone number.
- The carrier controls Caller ID: The phone setting cannot override the network configuration.
- The wrong SIM was selected: Dual-SIM devices may maintain separate calling settings.
- The call uses a third-party app: WhatsApp, Google Voice, and other services manage identity separately.
- The destination requires identifying information: Some emergency, toll-free, or service numbers may still receive the originating number.
- A business phone system overrides the device: Workplace VoIP systems may apply a company number automatically.
- The recipient rejects private calls: Anonymous-call filtering can send the call directly to voicemail or block it completely.
If several test calls display your number, ask the carrier whether Caller ID blocking is supported on your plan.
4. What Information Remains Visible During a No Caller ID Call?
The goal of how to call No Caller ID is to hide the number from the recipient’s ordinary call screen, not from the telecommunications network.
The recipient may still see:
- A label such as Private or Restricted
- The time and duration of the call
- A voicemail and any information you provide in it
- Your identity if you introduce yourself
- Account details shown by a separate calling app
Meanwhile, your carrier can still process and retain network information associated with the call. Emergency services and authorities may also obtain identifying data where permitted.
The Australian Communications and Media Authority’s caller privacy information illustrates how blocking codes vary between networks and explains that some organizations may use network-level identification even when ordinary Caller ID is withheld.
>>> Also read: How to Turn Off eSIM on iPhone and Android (2026 Guide)
5. FAQs
Is *67 or *69 used to block a number?
*67 is commonly used on supported North American networks to hide Caller ID for one call. *69 is generally a Call Return feature, so it serves a different purpose from how to call No Caller ID.
Is there a way to call with No Caller ID?
Yes, you can use a carrier-supported prefix, disable outgoing Caller ID in the phone settings, or ask the carrier to block it. Availability varies by device, country, network, and destination.
Is calling with No Caller ID free?
Changing a phone setting or using *67 is often free, but this is not guaranteed. Carrier-level blocking, international calls, and optional calling features may involve separate charges.
6. Conclusion
When deciding how to call No Caller ID, choose the option that matches how long you want the number hidden. A dialing prefix is suitable for one conversation, while phone or carrier settings can cover future calls.
Test the method with a trusted contact and check whether your provider charges for network-level blocking. The recipient may not see your number, but the carrier can still identify the originating line, and some phones automatically reject private calls.
