How to change your phone number with your carrier

You can change your phone number by contacting your wireless carrier directly — by phone, through their website, or in person at a store. Most carriers make the change within minutes to a few hours. You will keep the same phone, the same plan, and the same billing account; only the number itself changes. Some carriers charge a fee (typically $15 to $30), while others waive it if you have been a customer for a certain length of time or if you are changing the number because of harassment or unwanted contact.

The process is straightforward, but the real work comes after: notifying everyone who has your old number and updating it in accounts tied to that number. Banks, employers, medical offices, and services that send you verification codes all need the new number, or you will lose access to those accounts.

Key Takeaways

  • Call your carrier's customer service line, visit their website, or go to a store location to request a number change; most carriers complete it within hours.
  • You may be charged a fee of $15 to $30, though some carriers waive it for long-term customers or if you cite harassment as the reason.
  • Update your new number in any account that uses it for login, password recovery, or two-factor authentication before your old number stops working.
  • Notify your bank, employer, insurance company, doctor's office, and any service that texts you codes or alerts, as these are critical to access.
  • Give yourself at least a week to update accounts before fully disconnecting from your old number, since some services send verification codes to confirm the change.

Contacting your carrier to request the change

The fastest way is usually to call your carrier's customer service number, which is on your bill 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, and they will walk you through it. Some carriers let you choose a new number from available options in your area code, while others assign one to you.

If you prefer not to call, most major carriers (Verizon, AT&T, T-Mobile, US Cellular) let you change your number through their website or mobile app. Log into your account, look for a "Manage My Number" or "Change Number" option, and follow the prompts. In-store changes are also an option if you have a physical location nearby, though this may take longer if the store is busy.

Ask the representative whether there is a fee before you confirm the change. If you have been with the carrier for several years, ask if they will waive it. If you are changing your number because of harassment, spam, or threats, mention that — some carriers waive fees in those situations.

Understanding carrier fees and timing

Most carriers charge between $15 and $30 to change your number, though the fee structure varies. Verizon and AT&T typically charge around $15. T-Mobile often waives the fee for customers who have been active for a year or more. US Cellular's fee depends on your plan type. Prepaid carriers like Boost Mobile or Cricket may have different policies, so check your carrier's website or call to confirm.

The change itself usually takes effect within minutes to a few hours. Your old number will stop working once the change is complete, so you need to have notified the people and services that matter before that happens. Some carriers give you a grace period of a few hours to a day where both numbers work, but do not count on this — assume your old number is gone immediately.

Updating accounts that use your phone number

Before you change your number, make a list of every account or service that has it on file. Start with the ones that matter most: your bank, credit card company, employer, health insurance, and doctor's office. These often use your phone number as a way to verify your identity or send you alerts about account activity. If they still have your old number after you change it, you may not receive important notifications, and you could have trouble logging back in if you forget your password.

Log into each account and update your phone number in the settings or profile section. For accounts that use two-factor authentication (a code texted to your phone to confirm your login), update the number before you change it with your carrier. Some services will send a verification code to your old number to confirm the change, so you need to be able to receive texts on that number until the update is complete.

Services like banks, credit cards, and investment accounts should be updated within a day or two of your number change. Employer systems, insurance companies, and medical offices can usually wait a few days, but do not put them off for weeks. The longer you wait, the more likely you are to miss an important message or have trouble accessing an account.

Notifying people who contact you regularly

Text or call the people who reach you most often — family, close friends, coworkers — and give them your new number before you change it. This is especially important for anyone who might need to reach you in an emergency or who regularly texts you time-sensitive information.

For less frequent contacts, you can update your number on social media profiles, email signatures, or messaging apps like WhatsApp or Signal. If you use your phone number as your username or login for any social media account, update that information as well.

Consider sending a mass text or email to your contacts with your new number a day or two before the change takes effect. Keep it simple: "I am changing my phone number to [new number] on [date]. Please update your contacts." This gives people time to save it without confusion.

What to do if you need your old number back

If you change your number and then realize you made a mistake, contact your carrier immediately. Most carriers will let you switch back to your old number within a short window — typically 24 to 30 days — though you may have to pay another fee. The longer you wait, the less likely the old number will still be available, because carriers recycle unused numbers and assign them to other customers.

If your old number has already been reassigned to someone else, you cannot get it back. This is why it is important to think through the decision before you request the change and to make sure you have updated all your critical accounts before the old number stops working.

Changing your number to avoid spam or harassment

If you are changing your number because of unwanted calls, texts, or harassment, tell your carrier that when you request the change. Some carriers prioritize these requests or waive the fee. After you get your new number, do not share it publicly on social media or websites where spam callers might find it. Be selective about who you give it to.

If the harassment continues after you change your number, report it to your carrier and to the Federal Trade Commission (FTC) at ReportFraud.ftc.gov. Your carrier may be able to block specific numbers or offer additional tools to filter unwanted calls.

Frequently Asked Questions

Can I change my phone number online without calling customer service?

Most major carriers allow number changes through their website or app. Log into your account and look for a "Manage Number" or "Change Number" option. If you cannot find it, call customer service — some carriers require a phone call for security reasons.

Will I lose my text messages or contacts when I change my number?

No. Your contacts and text messages are stored on your phone or in your cloud backup, not tied to your phone number. Changing the number does not affect them. However, people who text you at your old number will not reach you, so make sure you have notified them of the change.

How long do I have to update my bank and other accounts after changing my number?

Update your bank and accounts that use two-factor authentication within a day or two. For other services like insurance or your doctor, you have a bit more time, but do not wait more than a week. The sooner you update, the less risk of missing an important message or having trouble accessing your account.

What if my carrier charges a fee and I do not want to pay it?

Ask if the fee can be waived based on your account history or the reason for the change. If you have been a customer for several years, mention that. If you are changing because of harassment, say so. Some carriers will waive the fee in these situations. If they will not, you can choose to keep your current number or switch to a different carrier.

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 current carrier. You will need your account number and PIN from your current carrier. The new carrier handles most of the process, though it can take a few days to complete.