The quickest way to change your number on iPhone
You cannot change your phone number directly through iPhone settings. Your phone number is assigned by your carrier — the company that provides your cellular service, like Verizon, AT&T, T-Mobile, or a regional provider. To change it, you contact your carrier, not Apple.
The process takes about 15 minutes on the phone or through your carrier's app or website. Most carriers let you request a new number online without visiting a store. Your old number typically becomes available for someone else to use after 30 to 90 days, depending on your carrier's policy.
Once your carrier assigns you a new number, it appears automatically on your iPhone within a few minutes. You do not need to update anything in Settings — the change happens at the carrier level, and your phone syncs it.
Key Takeaways
- Contact your carrier directly through their website, app, or phone line to request a new number — Apple cannot change it for you.
- Most carriers let you change your number online without visiting a store, though some require a phone call.
- Your new number appears on your iPhone automatically once the carrier processes the change, usually within minutes.
- You may be charged a fee ranging from $0 to $15 depending on your carrier and whether you have changed your number recently.
- Tell your contacts your new number manually — your iPhone does not send notifications when your number changes.
How to change your number through your carrier's website or app
Most carriers offer a self-service option in their app or website. Open your carrier's app or go to their website, sign in with your account credentials, and look for a section labeled "Change Phone Number," "Manage My Number," or "Phone Number Settings." The exact wording varies by carrier.
You will usually be asked to confirm your identity by entering your account PIN, the last four digits of your Social Security number, or a code sent to your email. Then you choose whether you want a random new number or if you want to search for a specific number from available options. Some carriers let you pick a number with a preferred area code.
After you confirm your choice, the change takes effect immediately or within a few minutes. Your iPhone will show the new number in Settings > Phone > My Number, though sometimes this takes up to an hour to sync.
Changing your number by calling your carrier
If you cannot find the option online or prefer to speak with someone, call your carrier's customer service line. The number is on your bill, on your carrier's website, or on the back of your SIM card. Have your account number and a form of ID ready.
Tell the representative you want to change your phone number. They will verify your identity, explain any fees, and ask whether you want a random number or if you have preferences for area code or number pattern. The change usually happens while you are on the call or within a few minutes after you hang up.
Ask the representative to confirm your new number before you end the call. This prevents confusion if there is a delay in the system updating your phone.
Fees and restrictions on changing your number
Most carriers charge between $0 and $15 to change your number. Some carriers waive the fee if you have not changed your number in the past year or two. A few carriers, like some prepaid services, do not charge at all. Check your carrier's website or ask when you call.
Some carriers limit how often you can change your number — for example, once per year or once per account lifetime. If you have changed your number recently, you may have to wait before requesting another change. This policy varies widely, so ask your carrier about their specific rules.
If you are on a family plan, changing your number affects only your line, not anyone else's. The account holder may need to authorize the change if you are not the primary account holder.
What happens to your old number
Your old number does not disappear immediately. For the first 30 to 90 days, calls and texts to your old number may still reach you, depending on your carrier's system. After that period, your old number is released back into the pool of available numbers and can be assigned to someone else.
During the transition period, you may receive calls or texts meant for the previous owner of your new number. You can ignore these or politely let the caller know they have the wrong number. Do not give out your old number to anyone new.
If you are worried about losing contact with people who have your old number, tell them your new number before you make the change. There is no automatic notification — your contacts will not know unless you tell them.
Updating your number in apps and accounts
After your number changes, update it anywhere you have used it for two-factor authentication or account recovery. This includes your email account, banking apps, social media, and any other service that sends you codes by text.
Go to each account's security or settings page and update your phone number. For email accounts like Gmail or iCloud, this is usually under Security or Account Recovery. For banking and financial apps, look in Settings or Account Information. Updating these takes a few minutes per account but prevents you from being locked out if you need to recover a password.
You do not need to update your number in your contacts list or in apps like Messages or WhatsApp — those apps follow your carrier's number automatically.
Troubleshooting if your new number does not appear
If your iPhone still shows your old number in Settings > Phone > My Number after an hour, restart your phone. Turn it off completely, wait 10 seconds, and turn it back on. This forces your phone to reconnect to your carrier's network and sync the new number.
If restarting does not work, toggle Airplane Mode on and off. Go to Settings, tap the Airplane Mode toggle to turn it on, wait 10 seconds, then turn it off. This also reconnects your phone to the network.
If your number still has not updated after two hours, call your carrier again. There may be a delay in their system, or the change may not have processed correctly. They can confirm whether the change went through and troubleshoot from their end.
Frequently Asked Questions
Will changing my number affect my iCloud account or Apple ID?
No. Your Apple ID is tied to your email address, not your phone number. Changing your carrier number does not affect iCloud, FaceTime, iMessage, or any Apple services. You can update your phone number in your Apple ID settings if you want, but it is not required.
Can I keep my old number if I switch carriers?
Yes, through a process called number porting. Contact your new carrier and ask about porting your number from your old carrier. You will need your account number and PIN from your old carrier. The process usually takes a few days and may have a small fee. Your old carrier cannot prevent you from porting your number.
What if I change my number and then want my old number back?
If you change your mind within a few days, call your carrier immediately. Some carriers will reassign your old number to you if it has not been given to someone else yet. After 30 to 90 days, your old number is released and you cannot get it back. There is no way to recover a number after it has been reassigned.
Do I need to tell my contacts my new number?
Yes. Your iPhone does not send an automatic notification when your number changes. You will need to tell people your new number through text, email, phone call, or social media. Consider sending a message to your frequent contacts before you make the change.
Will my text messages and call history disappear when I change my number?
No. Your iPhone stores messages and call history locally on the device. Changing your carrier number does not delete anything. All your old conversations and call logs remain on your phone.