What You Can and Cannot Change About Your Caller ID

Your caller ID on iPhone is controlled by your phone carrier, not by Apple or your phone's settings. You cannot change the number that appears when you call someone — that comes from your carrier's records and your account. What you can change is the name that displays next to your number in your own contacts, and whether your number shows up at all when you call (by blocking your caller ID for specific calls or all calls).

If you want to hide your number entirely, you can do that through your carrier or through iPhone's built-in settings. If you want to change how your name appears to people who call you, that requires contacting your carrier directly, because they control the name database that other carriers use.

Key Takeaways

  • Your phone number itself cannot be changed through iPhone settings — it is tied to your carrier account and only your carrier can modify it.
  • You can hide your number from showing up on outgoing calls by using *67 before dialing, or by turning on "Show My Caller ID" toggle in Settings > Phone.
  • To change the name associated with your number (what people see when you call them), you must contact your carrier directly, as they maintain that information.
  • Changing how your name appears in your own contacts does not change what other people see when you call — it only affects what you see on your phone.

How to Hide Your Number on Outgoing Calls

The fastest way to block your caller ID for a single call is to dial *67 before the phone number. For example, type *67-555-0123 and press call. The recipient will see "Unknown" or "Private Number" instead of your number. This works for one call only; the next call you make will show your number again.

To hide your number on all outgoing calls, open Settings on your iPhone, tap Phone, then scroll down and toggle off "Show My Caller ID." Once this is off, your number will not display to anyone you call. You can turn it back on the same way whenever you want to show your number again. Note that some services (like banks or emergency services) may require your caller ID to be visible, so they might not accept your call if it is blocked.

Changing the Name Associated With Your Number

When someone calls you, they see either your phone number or a name associated with that number. That name comes from your carrier's database, not from your iPhone. If you want to change what name appears when you call other people, you need to contact your carrier directly — AT&T, Verizon, T-Mobile, or whoever provides your service.

Call your carrier's customer service number (usually on the back of your bill or on their website) and ask to update the name on your account. They will verify your identity and make the change in their system. This can take a few hours to a few days to show up on other people's phones. Some carriers charge a small fee for this service; others do it for free.

Editing How Names Appear in Your Contacts

You can change how a contact's name appears on your own iPhone without affecting what anyone else sees. Open the Contacts app, find the person, tap Edit, and change their name however you want. This only changes what you see on your phone — it does not change what appears on their phone or anyone else's.

This is useful if you want to label a contact with a nickname or add context (like "Mom - Work" or "Dentist's Office"), but it does not change your caller ID or how you appear to others.

Using Third-Party Apps to Spoof or Change Caller ID

Some apps claim to let you change your caller ID to a different number. These apps are not reliable and often do not work as advertised. More importantly, spoofing your caller ID — making it appear that you are calling from a number you do not own — is illegal in most places under the Truth in Caller ID Act. Using these apps can result in fines or criminal charges.

If you need a different phone number for business or personal reasons, the legal option is to get a second phone line through your carrier or through a service like Google Voice, which gives you a real number that you can use for calls and texts.

What to Do If Your Caller ID Is Wrong or Spoofed

If other people are telling you that your caller ID shows the wrong number or a number you do not recognize, contact your carrier immediately. This can happen if your account has been compromised or if there is an error in their system. Your carrier can investigate and correct the information in their database.

If someone is spoofing your number (making calls appear to come from you), report it to the Federal Communications Commission (FCC) at fcc.gov/complaints. You can also file a complaint with your carrier. Spoofing is illegal, and the FCC investigates these cases.

Frequently Asked Questions

Can I change my phone number through iPhone settings?

No. Your phone number is part of your carrier account and can only be changed by contacting your carrier directly. iPhone settings let you hide your number or change how contacts appear on your phone, but not your actual phone number.

Does *67 work on all carriers?

*67 works on most carriers in the United States, but not all. Some carriers may require you to use their own code or may not support it at all. If *67 does not work, use the "Show My Caller ID" toggle in Settings instead, or contact your carrier to ask how to block your number.

Will changing my caller ID settings affect emergency calls?

If you have hidden your caller ID, emergency services (911) will still be able to see your number and location. Your carrier automatically provides this information to 911 regardless of your caller ID settings.

How long does it take for a caller ID name change to show up?

After your carrier updates your name in their system, it can take anywhere from a few hours to several days to appear on other people's phones. This depends on how often other carriers update their databases. If it has been more than a week, contact your carrier to confirm the change went through.

What is Google Voice and can I use it to change my caller ID?

Google Voice is a free service that gives you a real phone number you can use for calls and texts. When you call someone through Google Voice, your Google Voice number appears as your caller ID, not your actual carrier number. This is legal and does not involve spoofing.