How to Do No Caller ID: 4 Easy Ways to Hide Your Phone Number
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There are times when you may want to make a call without displaying your phone number to the recipient. If you are wondering how to do No Caller ID, the available approach can depend on your phone, carrier, and whether you want to hide the number once or for every call.
This guide covers four practical methods for iPhone and Android users. It also explains when caller ID blocking may not work, how to restore your number afterward, and which privacy limits you should consider before making the call.
1. What Does No Caller ID Mean When You Make a Call?
“No Caller ID” means that your phone number is withheld from the person receiving the call. Instead of seeing your name or number, the recipient may see No Caller ID, Private Number, Blocked, or a similar label.
The setting affects only what appears on the recipient’s screen. It does not make the call completely anonymous. Your mobile carrier still has records of the call, and your number may remain visible to emergency services or certain toll-free services.
It is also helpful to distinguish No Caller ID from an unknown caller. A No Caller ID call usually means the number was deliberately hidden, while “Unknown Caller” may appear when the network cannot identify or transmit the number. Before learning how to do No Caller ID, keep in mind that the displayed label can vary by carrier and device.
2. How to Do No Caller ID: 4 Ways to Hide Your Number
You can hide your phone number for one call, change the caller ID setting on your phone, or request account-level blocking from your carrier. If you want to know how to do a No Caller ID for one call or how to do the No Caller ID by default, choose the method that fits how often you need it.
The table below gives a quick comparison:
| Method | Works On | Best For | Key Limitation |
| Dialing a caller ID blocking code | Most mobile and landline phones in supported regions | Hiding the number for one call | The code varies by country and carrier |
| iPhone caller ID settings | iPhones with carrier support | Hiding the number for most outgoing calls | The setting may be missing or unavailable |
| Android caller ID settings | Many Android phones | Changing caller ID behavior without a dialing code | Menu names differ by manufacturer and carrier |
| Carrier-level caller ID blocking | Mobile and landline accounts | Keeping the number private by default | The carrier may charge a fee or require account changes |
These methods explain how to do No Caller ID, but none can guarantee that the number will be hidden from every service or recipient.
Use *67 to Hide Your Number for One Call
In the United States and parts of North America, dial *67 before the phone number you want to call. For example, enter *67 212-555-0123, then place the call as usual.
The recipient will normally see No Caller ID, Private, or Blocked instead of your number. This code applies only to that call, so your caller ID should return to normal on the next one.
The code is not universal. Other countries and carriers may use a different prefix, so check with your phone provider before relying on it.
Turn Off Show My Caller ID on an iPhone
If you’re wondering how to do No Caller ID on iPhone, you can hide your number directly through your iPhone’s Phone settings. Open Settings, select Apps, and tap Phone. Choose Show My Caller ID, then turn off the switch.
Once disabled, your number should be hidden on regular outgoing calls until you turn the setting back on. However, some carriers control caller ID at the account level, so the switch may be unavailable or may not appear.
If you cannot find the setting, contact your carrier rather than installing an app that asks for access to your contacts or call history.
Hide Your Caller ID Through Android Phone Settings
Open the Phone app and enter its settings menu. Depending on the device, the caller ID option may appear under Calling accounts, Supplementary services, Additional settings, or Caller ID.
Choose Hide number to withhold your caller ID on supported outgoing calls. The exact menu path can differ across Samsung, Google Pixel, Motorola, and other Android phones.
Carrier settings can also override the selection. If the option is missing or does not work, ask your carrier whether caller ID blocking is supported on your plan.
Ask Your Carrier to Block Caller ID by Default
A mobile or landline provider may be able to hide your number at the account level. This option is useful when you want most outgoing calls to appear private without entering a code each time.
Ask whether the block applies to every line on the account or only one number. You should also confirm whether there is a fee and whether the carrier provides a temporary code for showing your number on selected calls.
>>> Read more: How to Leave a Group Chat on iPhone in 4 Effortless Steps?
3. When Caller ID Blocking May Not Hide Your Number
Caller ID blocking affects many ordinary calls, but it does not override every network or service. Even if you follow the usual steps for how to do No Caller ID, your number may still be available in the following situations.
Calls to Emergency and Toll-Free Numbers
Emergency call centers may receive your phone number and location information even when caller ID is blocked. This allows emergency services to respond or call back when necessary.
Some toll-free numbers may also receive identifying information through Automatic Number Identification. This system is separate from the caller ID shown on an ordinary phone screen.
Carrier or Account Restrictions
Some carriers, business accounts, prepaid plans, and managed devices do not allow users to change caller ID settings. The phone may hide the option or ignore the selected setting.
Caller ID blocking codes also vary by country. A code that works in the United States may do nothing or perform another function elsewhere.
Anonymous Calls Rejected by the Recipient
A person or organization may use a setting that automatically silences or rejects calls without a visible number. In that case, the call may go directly to voicemail, disconnect, or fail to ring.
Blocking your caller ID does not bypass the recipient’s call-filtering rules. If the call is legitimate and repeatedly fails, consider showing your number or contacting the recipient through another appropriate channel.
4. How to Turn Caller ID Back On After Hiding Your Number
The steps depend on how you originally hid the number. If you used *67 while learning how to do No Caller ID, the block applied only to that call, so there is usually nothing to change afterward.
For a setting that hides your number on every call, follow these steps:
- Open the caller ID settings. On an iPhone, go to Settings > Apps > Phone > Show My Caller ID. On Android, open the Phone app and look under Calling accounts, Supplementary services, or Additional settings.
- Turn caller ID back on. Enable Show My Caller ID on an iPhone or select Show number or Network default on Android.
- Restart the Phone app. Close and reopen the Phone app so the change can take effect.
- Make a test call. Call someone you trust and ask whether your phone number appears correctly.
- Check with your carrier if the number remains hidden. An account-level privacy block may need to be removed by the phone provider.
- Confirm the change on every line. Family and business accounts may manage caller ID separately for each phone number.
5. Caller ID Blocking Rules and Privacy Limits
Hiding caller ID offers some privacy from the person receiving the call, but it does not remove the call from carrier records. Before using any method for how to do No Caller ID, keep these limits in mind:
- Your carrier can still identify the number and maintain call records.
- Emergency services may receive your number and location information.
- Some toll-free services may identify the caller through a separate network system.
- Recipients can silence or reject anonymous calls.
- Caller ID blocking hides your number, while spoofing displays misleading caller information. The FCC states that spoofing is illegal when used to defraud, cause harm, or wrongfully obtain anything of value. Read the FCC guidance on caller ID spoofing for details.
- Employers and business phone systems may apply their own caller ID policies.
- Hiding a number is different from spoofing a false number.
- Caller ID privacy should not be used for harassment, threats, fraud, or repeated unwanted calls.
- Law enforcement may obtain call information through the applicable legal process.
- Codes and settings differ by country, carrier, account type, and device.
- Third-party apps that promise complete anonymity may collect contact, account, or calling data.
>>> Read more: How to Silence Notifications on iPhone for Specific Apps and Contacts
Conclusion
You can hide your number for one call, change the caller ID setting on your phone, or ask your carrier to apply a default block. The right method depends on how often you need privacy and what your carrier supports.
Once you know how to do No Caller ID, remember that the feature changes what the recipient sees but does not make the call untraceable or exempt it from call-filtering and privacy rules.
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