How Can I Call a Number Without My Number Showing?

Imagine Sarah, a diligent online seller, is looking to connect with a potential buyer from a recent listing. She needs to discuss pricing and pickup details, but she’s wary of giving out her personal cell phone number to someone she doesn’t know. Or perhaps Mark, a concerned citizen, wants to report a suspicious activity to a local non-emergency line, but fears potential retaliation if his number is revealed. We’ve all been there – situations where we need to make a call, but for privacy, safety, or just plain convenience, we’d prefer our personal digits remain out of sight.

So, how can I call a number without my number showing? The most straightforward and widely recognized method to call a number without your personal digits appearing on the recipient’s device is by dialing *67 before the phone number you wish to call. This simple prefix, typically effective across most North American carriers, instructs the network to suppress your caller ID for that specific outgoing call, presenting your number as “Private,” “Blocked,” or “No Caller ID.” While *67 is incredibly common, it’s just one tool in a larger toolkit for maintaining your privacy when making calls.

Understanding Why You Might Want to Hide Your Number

The desire to make an anonymous call isn’t always rooted in mischief or evasion. More often than not, it stems from a genuine need for privacy or personal security in a world where our phone numbers are increasingly linked to our digital identities and personal lives. From professional boundaries to safeguarding against unwanted contact, there are many legitimate reasons an individual might opt to keep their number private.

Protecting Your Privacy

One of the foremost reasons people choose to hide their number is to protect their personal privacy. In today’s digital age, our phone numbers are often gateways to a wealth of personal information. Giving out your primary number indiscriminately can open the door to unwanted telemarketing calls, spam texts, or even more serious privacy breaches. For instance, when I’m selling something on a local marketplace, I always think twice before giving out my direct line. Using a private number ensures that any follow-up is entirely on my terms and I don’t inadvertently add my number to yet another marketing list.

Avoiding Unwanted Callbacks or Harassment

There are situations where you need to make a one-off call, but you absolutely do not want the recipient to be able to call you back. This could be anything from reporting a minor incident to a non-emergency number, contacting a short-term service provider, or even reaching out to someone with whom you have a strained relationship. Hiding your number prevents immediate call-backs and helps you avoid potential harassment or persistent contact you don’t desire.

Professional and Boundary Setting

For professionals who might need to call clients or colleagues from their personal phone outside of office hours, but wish to maintain a clear boundary between their personal and professional life, hiding their number is a crucial step. It ensures that clients only have access to official contact methods and don’t mistakenly assume personal contact outside of work hours is acceptable. Similarly, individuals volunteering for causes or making community outreach calls might prefer to keep their personal numbers separate from their public-facing roles.

Testing and Verification Purposes

Believe it or not, sometimes people hide their numbers for testing purposes. If you’re trying to see if a phone line is active, or if you’re testing a call forwarding setup, calling anonymously can prevent the recipient from logging or storing your actual number, especially if it’s a test to a system that automatically captures caller IDs.

Safety and Security Concerns

In more sensitive scenarios, such as reporting potential threats, domestic issues, or suspicious activity, revealing your number could potentially put you at risk. Emergency services will always see your number (we’ll dive into that later), but for non-emergency reports or inquiries, anonymity can be a protective measure. It’s about empowering individuals to communicate important information without fearing personal repercussions.

Primary Methods for Hiding Your Number

Now that we’ve established the compelling reasons for keeping your number private, let’s delve into the practical, step-by-step methods you can employ. Each method has its own nuances, advantages, and limitations, so understanding them will help you choose the best approach for your specific situation.

1. Dialing *67 for Per-Call Anonymity

This is by far the most common and easiest method for making an anonymous call. It’s a vertical service code, a special sequence of digits that tells the phone network to modify the call’s behavior. In the United States and Canada, *67 is the standard code for blocking caller ID on a per-call basis.

How to Use *67: A Simple Checklist

Open your phone’s dialer application. This is where you normally input phone numbers.
Dial *67. Press the asterisk key, then the number 6, then the number 7.
Immediately after *67, dial the full phone number of the person you wish to call. This includes the area code. For example, if you want to call (555) 123-4567, you would dial *675551234567.
Press the call button.

When you make the call, your number will typically appear as “Private Number,” “Blocked,” or “No Caller ID” on the recipient’s phone. It’s important to remember that *67 only works for that single call. If you hang up and call the same person back without dialing *67 again, your number will show up as usual. This method is perfect for those occasional instances where you need to hide your number without making a permanent change to your phone settings.

Limitations of *67

Emergency Services (911): Your number will always be revealed to 911 dispatchers, regardless of whether you use *67. This is a crucial safety feature.
Toll-Free Numbers (800, 888, etc.): *67 generally does not work when calling toll-free numbers. These services often have systems in place that override caller ID blocking.
Certain Business Lines: Some businesses or government agencies use services that can override *67. While less common, it’s worth noting.
Recipients with Call Blockers: Some individuals or businesses may have a feature enabled that automatically rejects or sends to voicemail calls from “private” or “unknown” numbers. In such cases, your call simply won’t go through.

2. Blocking Your Number Permanently via Phone Settings

If you find yourself frequently needing to hide your number, or if you prefer a default state of anonymity for outgoing calls, you can adjust a setting on your smartphone that automatically blocks your caller ID for all calls. This is a more permanent solution than *67, which means you’ll need to remember to disable it if you *want* your number to show for certain calls.

For iPhone Users (iOS):

Go to your iPhone’s Settings app.
Scroll down and tap on Phone.
Under the “Calls” section, tap on Show My Caller ID.
Toggle the switch to the Off position.

Once toggled off, all your outgoing calls will typically appear as “Private,” “Blocked,” or “No Caller ID.” To show your number again, simply go back to this setting and toggle it back on. In some rare cases, this option might be grayed out, indicating that your carrier does not support this feature or requires you to contact them directly.

For Android Users:

The exact steps can vary slightly depending on your Android phone’s manufacturer (Samsung, Google Pixel, OnePlus, etc.) and the version of Android it’s running. However, the general path is usually quite similar:

Open the Phone app (the one you use to make calls).
Tap the three vertical dots or gear icon (Settings) to open the menu. This is usually in the top right or bottom of the screen.
Look for Settings or Call Settings.
Navigate to options like Caller ID, Additional Settings, Supplementary Services, or Advanced Settings.
You should find an option like Show my caller ID or Hide number. Select Hide number or Never for your outgoing caller ID.

Just like with iPhones, once you set this, your number will be hidden for all subsequent calls until you revert the setting. My personal experience with Android phones is that this setting can sometimes be buried a bit, so don’t be shy about searching within your phone’s settings if you can’t find it immediately.

Carrier-Specific Settings

In some situations, your carrier might have specific codes or procedures for blocking your number permanently, or for disabling the feature. If the in-phone settings don’t work or are unavailable, a quick call to your carrier’s customer service line can clarify your options. They can often enable or disable this feature for you remotely on their network side.

3. Using a “Burner” Number App or Second Phone Number Service

For those who need more control, flexibility, or a completely distinct number for specific interactions, “burner” number apps or services that provide a secondary phone number are an excellent option. These services essentially give you a temporary or disposable phone number that routes calls and texts through the app, using your existing internet connection or carrier data plan, without revealing your primary cell number.

How Burner Apps Work:

These apps typically function by assigning you a virtual phone number. When you make a call through the app, it acts as an intermediary, routing the call through its own network and displaying the virtual number as the caller ID, not your actual phone number. Many also offer texting capabilities, allowing you to send and receive texts from your “burner” number.

Popular Burner Number Options:

Google Voice: This is arguably one of the most popular and free options available (in the US). You get a free second phone number that you can use for calls, texts, and voicemail. It integrates with your existing Google account and phone. Calls made through Google Voice will display your Google Voice number, not your primary number. It’s fantastic for setting up a separate line for online sales, signing up for newsletters, or separating personal and public communications.
TextNow: Offers free calling and texting over Wi-Fi, along with a free phone number. It’s ad-supported but provides a reliable way to make calls without revealing your main number.
Hushed, Burner App, Sideline: These are dedicated apps that offer temporary or permanent secondary phone numbers, often with more advanced features like call forwarding, custom voicemails, and multiple numbers. They usually operate on a subscription model, offering different tiers based on minutes, texts, and the longevity of the number. My experience with these apps has been positive, especially when I needed a number for a short-term project and wanted something more robust than *67, but less permanent than a Google Voice number.

Advantages of Burner Apps:

Complete Anonymity: Your primary number is never directly involved.
Call & Text Functionality: Most allow both calls and texts, offering a full communication solution.
Disposable Numbers: You can often get a new number quickly and easily dispose of an old one if it starts receiving unwanted calls.
Organization: Great for segmenting different aspects of your life (e.g., one number for online dating, another for job applications).

Considerations for Burner Apps:

Internet Connection: Most rely on Wi-Fi or mobile data for calls and texts.
Cost: While some offer free tiers (like Google Voice, TextNow), premium features or dedicated burner apps often come with a subscription fee.
Reliability: Call quality can sometimes depend on your internet connection.

4. Using a Public Phone (Payphone)

This method feels a bit like stepping back in time, but it’s still a technically viable option, if increasingly rare. Payphones, or public telephones, allow you to make calls without any trace leading back to your personal device or identity. Your number definitely won’t show, because you’re not using *your* phone.

How to Use a Payphone:

Locate a payphone: This is often the trickiest part, as they are few and far between these days. Look in older city centers, bus terminals, or transportation hubs.
Have coins or a calling card: Most payphones still operate on coins, though some might accept credit cards or specialized calling cards.
Dial the number: Just dial the number as you normally would.

Pros and Cons:

Pro: Ultimate anonymity. No digital trail to your personal devices.
Con: Extremely inconvenient. Limited availability, often poorly maintained, and can be expensive per minute. Not practical for regular use.

5. Utilizing Voice over Internet Protocol (VoIP) Services

VoIP technology allows you to make phone calls over the internet rather than a traditional phone line. Many VoIP services, particularly those not directly tied to a physical phone number, can be used to make calls without revealing your personal number.

How VoIP Works for Anonymity:

When you use a VoIP service like Skype or WhatsApp to make an internet call, your traditional phone number isn’t typically transmitted as the caller ID. Instead, if the service provides a caller ID at all, it might show a generic “VoIP Call,” or a specific ID associated with the service, or simply “Unknown.”

Examples of VoIP Services:

Skype: While primarily known for video calls, Skype also allows you to make calls to traditional phone numbers (often for a fee). When you call a landline or mobile, the caller ID can be set to “anonymous” or display a Skype number if you’ve purchased one.
WhatsApp: If you’re calling another WhatsApp user, the call goes through the app and doesn’t reveal your number to them unless they already have it saved. However, WhatsApp calls to non-WhatsApp numbers aren’t natively supported.
Other Dedicated VoIP Providers: Services like Vonage, Ooma, or other business VoIP solutions often come with options to manage caller ID, including blocking it. These are usually more geared towards business or home phone replacements rather than casual anonymous calls, but the principle holds.

Advantages of VoIP:

Cost-Effective: Many in-app VoIP calls are free (e.g., Skype to Skype, WhatsApp to WhatsApp). Calls to traditional numbers are often cheaper than standard long-distance rates.
Global Reach: Can be used to make international calls relatively easily and affordably.
Decouples from Carrier: Your call is routed over the internet, not your mobile carrier’s voice network, offering a layer of separation.

Considerations for VoIP:

Internet Quality: Call quality is directly dependent on your internet connection speed and stability.
Recipient’s Setup: If calling another app user, they need the same app. For calls to traditional numbers, costs might apply.

6. Contacting Your Carrier Directly

In some unique scenarios, or if the in-phone settings aren’t working as expected, your mobile carrier can often adjust your caller ID settings at the network level. This means they can set your number to be permanently blocked by default for all outgoing calls, or enable/disable this feature based on your request.

When to Contact Your Carrier:

If the “Show My Caller ID” option is grayed out on your iPhone or missing on your Android.
If you want a permanent block applied at the network level rather than relying on phone settings.
If you’re experiencing issues with *67 or other blocking methods.

Calling their customer service line and explaining your request is usually all it takes. They’ll walk you through any necessary identity verification and make the changes on their end. Be prepared to ask specifically about “permanent caller ID blocking” or “default anonymous calls.”

When Anonymity Isn’t Possible (or Legal)

While various methods exist to hide your number, it’s crucial to understand that caller ID blocking isn’t a universally absolute shield. There are specific circumstances where your number will always be revealed, and certain uses of anonymity can even venture into illegal territory.

Emergency Services Always See Your Number

This is perhaps the most important caveat: calls to 911 (or equivalent emergency numbers worldwide) will always transmit your location and phone number to dispatchers, regardless of any blocking codes or settings you’ve employed. This is a critical safety measure, ensuring that emergency responders can locate you even if the call is disconnected or you’re unable to speak. The system for emergency calls, known as Enhanced 911 (E911), is designed to override all caller ID blocking for your protection.

Caller ID Override for Specific Entities

Beyond emergency services, certain government agencies, law enforcement, and sometimes even specific businesses (especially those involved in debt collection or security) may have the capability to override caller ID blocking. This is not a common feature available to the general public but exists for legitimate reasons, often with legal oversight. So, while your number might appear “private” to most, it might not be truly hidden from every single entity.

Legal and Ethical Considerations

It’s important to use caller ID blocking responsibly. While perfectly legal for privacy, using it to harass, make threats, or engage in fraudulent activities is illegal and can lead to serious legal consequences. Law enforcement agencies can, and will, subpoena phone records to unmask anonymous callers if there’s reasonable suspicion of criminal activity. My personal rule of thumb is: if you wouldn’t say or do something with your number showing, you probably shouldn’t be doing it anonymously either. Anonymity grants a sense of freedom, but it doesn’t absolve you of responsibility for your actions.

Potential Risks and Limitations of Hiding Your Number

While the benefits of hiding your number are clear, it’s equally important to be aware of the potential downsides and limitations. Anonymity isn’t always perceived positively, and there are ways your efforts might be thwarted or backfire.

Recipient Call Blocking of Private Numbers

Many people and businesses have opted to block calls from “private” or “unknown” numbers. This is a common defense against spam, telemarketing, or unwanted solicitations. If the person or business you’re trying to reach has this feature enabled, your call, despite your best efforts to connect anonymously, simply won’t go through, or it will be sent directly to voicemail. From my own experience, I’ve had calls blocked when I’ve used *67 to contact businesses that explicitly state they don’t answer private numbers, which can be frustrating when you’re genuinely trying to reach them.

Tracing Anonymous Calls

While *67 or other blocking methods prevent your number from being *displayed* to the recipient, it doesn’t make the call untraceable. Your carrier, and by extension, law enforcement with a subpoena, can always access records of who called whom. So, if you’re engaging in any illegal or harassing activities, hiding your number will not protect you from being identified and held accountable.

Carrier Overrides and Specific Services

As mentioned before, certain types of services, particularly toll-free numbers, and those used by specific governmental or critical infrastructure entities, are designed to override caller ID blocking. This means even if you dial *67 or have your phone settings set to hide your number, your actual phone number might still be revealed to these specific services.

Impact on Call Quality and Features

When using third-party apps (burner numbers, VoIP services), the call quality can sometimes be impacted by your internet connection. Additionally, advanced calling features like seamless call waiting, voicemail integration, or integration with car infotainment systems might not function as smoothly as with a direct carrier call.

Choosing the Right Method for You

With several options available, deciding which method is best often comes down to your specific needs for privacy, frequency of use, and technical comfort. Here’s a brief guide to help you choose:

Decision Checklist for Hiding Your Number:

For a single, one-off call where you need privacy: Use *67. It’s quick, easy, and requires no setup.
For frequent anonymous calls (e.g., you often sell items online or deal with many new contacts): Adjust your phone’s permanent Caller ID settings. Just remember to turn it off when you *want* your number to show.
For a completely separate, disposable number for specific purposes (e.g., dating, classifieds, signing up for services): A burner app like Google Voice or Hushed is ideal. This offers a distinct number and text capabilities.
When internet connectivity is your primary means of communication, and you want to call another app user or make cheap international calls: Utilize a VoIP service like Skype.
If all else fails or you need a network-level setting: Contact your mobile carrier directly.
For extreme, untraceable anonymity (and if you can find one): A payphone. (Though highly impractical for most modern uses.)

Ultimately, the best method is the one that fits your situation, balancing convenience, cost, and the level of anonymity you require. I personally rely heavily on Google Voice for any online interactions where I need to provide a number but don’t want to give out my direct cell. For quick, one-off private calls, *67 is my go-to.

Frequently Asked Questions About Hiding Your Number

Can *67 be traced?

Yes, calls made using *67 can absolutely be traced. While *67 blocks your number from *displaying* on the recipient’s phone, it does not make the call untraceable by your phone carrier or law enforcement. When you dial *67, your phone carrier still has a record of your number initiating the call to the recipient’s number. This information, like all call records, can be accessed through legal means, such as a subpoena, if there is a legitimate reason, like investigations into harassment or criminal activity. So, it provides display privacy, not absolute anonymity from record-keeping.

Do anonymous calls show up on phone bills?

Yes, typically they do. Your phone bill is a record of your usage, and that includes all outgoing calls made from your line, regardless of whether you blocked your caller ID. On your detailed billing statement, you will likely see the date, time, and the number you called, even if you used *67 or had your caller ID blocked in your phone settings. The “anonymous” aspect only applies to what the *recipient* sees; your carrier maintains a full record of your activities. Calls made through third-party apps like Google Voice or other VoIP services, however, might not appear on your *carrier’s* bill, as they use data (which would appear as data usage) rather than your carrier’s voice network directly.

Can I text anonymously?

Hiding your number for texts is a bit different from calls. The *67 prefix only works for voice calls, not text messages. If you send a text directly from your primary phone number, it will almost always show your number. To text anonymously, you generally need to use a third-party application or service that provides a “burner” number. Apps like Google Voice, TextNow, or specialized burner apps allow you to send and receive text messages using a secondary, virtual number, thus keeping your primary number private. These apps route messages over the internet, and the recipient sees the virtual number, not your actual one. Some services also allow you to send anonymous texts from a website, but these are often less reliable or may have usage limitations.

What if the recipient has a “block anonymous calls” feature?

If the person or business you are trying to call has a feature enabled that blocks anonymous or private numbers, your call might not go through at all. Many individuals and organizations, fed up with spam or telemarketing, set their phones or phone systems to automatically reject calls where the caller ID is hidden. In such cases, your call might be directed straight to voicemail, receive a busy signal, or simply be disconnected. There’s no way to bypass this feature using *67 or your phone’s default settings. If you absolutely need to reach them, you would either have to unblock your number, or use a “burner” app that provides a different, non-private number that they might recognize or accept.

Is it illegal to hide my number?

No, generally speaking, it is not illegal to hide your number for privacy purposes. Using *67 or your phone’s built-in caller ID blocking features is a legal and often common practice in the United States and many other countries. It’s recognized as a personal privacy choice. However, the legality shifts dramatically if you use caller ID blocking to engage in illegal activities, such as harassment, making threats, committing fraud, or impersonating someone else. In these situations, law enforcement can easily trace the call, and you would be held accountable for your actions. The intent behind hiding your number is what determines its legality.

Does blocking my number work internationally?

The effectiveness of blocking your number, especially using codes like *67, can vary significantly when making international calls. The *67 code is primarily a North American standard. Other countries may have different codes (e.g., #31# is common in some European countries) or different network configurations that impact caller ID blocking. Your phone’s permanent “Hide Caller ID” setting, which is controlled by your carrier, might have a better chance of working internationally, but it’s not guaranteed. When calling internationally, the best bet for reliable anonymity is often through a Voice over IP (VoIP) service (like Skype Out) where you can often explicitly choose to hide your ID or use a purchased virtual number. If international anonymity is critical, it’s always wise to test it or inquire with your carrier about their specific international caller ID blocking policies.