How to Change Amazon Security Phone Number
If you no longer use the phone number tied to your Amazon account, updating it helps keep account recovery, login verification, and order alerts working correctly.
This guide explains how to change Amazon security phone number details, what Amazon uses that number for, and what to do if you cannot sign in.
Amazon relies on your security phone number for identity checks, two-step verification, and password recovery, so the process is worth doing carefully.
A few extra verification steps can make the difference between a smooth update and a locked account.
What Amazon Uses Your Security Phone Number For
Your Amazon security phone number is more than a contact field.
Amazon may use it to send one-time passwords, confirm suspicious sign-ins, recover your account, and communicate changes to your login details.
- Two-step verification codes
- Password reset and account recovery
- Login alerts and device verification
- Identity confirmation for sensitive changes
If your phone number is outdated, disconnected, or shared with someone else, update it as soon as possible to reduce the risk of losing access.
How to Change Amazon Security Phone Number on Desktop
The fastest way to update your Amazon security phone number is through the account settings page on a desktop browser.
Amazon may ask you to confirm your identity before the change is saved.
Steps to update the number
- Sign in to your Amazon account.
- Go to Account & Lists, then open Your Account.
- Select Login & security.
- Find the phone number used for security or sign-in verification.
- Click Edit or Change.
- Enter your new phone number.
- Choose how Amazon should verify the change, such as text or call.
- Enter the verification code sent to the new number or the existing number, if prompted.
- Save the updated information.
If Amazon offers a prompt to reauthenticate your session, follow it carefully.
The platform may require your password again before accepting the new number.
How to Change Amazon Security Phone Number in the Mobile App
You can also update your number in the Amazon mobile app, which is useful if you mostly manage your account from your phone.
The menu labels may vary slightly by app version, but the path is similar.
- Open the Amazon app and sign in.
- Tap the menu icon and go to Account.
- Open Login & security or Your Account.
- Select the phone number linked to your account security.
- Tap Edit.
- Add your new phone number and confirm the change.
- Enter the verification code if Amazon sends one.
If you have multiple Amazon profiles or household members using shared devices, make sure you are editing the correct account.
Changes made in one profile do not update another Amazon account automatically.
What If You No Longer Have Access to the Old Number?
If your old number is disconnected, lost, or belongs to someone else, Amazon may need extra verification before allowing the update.
This is common when users switch carriers, get a new SIM, or change from a personal line to a work number.
Try the following if you cannot receive codes on the old number:
- Use the Amazon app or desktop sign-in flow to see whether another verification method is available.
- Check whether Amazon can send the code to your email address instead.
- Update your password first if Amazon requests it, then return to security settings.
- Contact Amazon Customer Service if the account is locked behind the old phone number.
Amazon support may ask for order history, billing details, or other proof that you own the account.
Have recent order numbers and the email address on the account ready before you contact them.
How to Change Amazon Security Phone Number If Two-Step Verification Is Enabled
Two-step verification adds security but can also make number changes more sensitive.
In many cases, Amazon will send a code to your existing number, your email, or your authenticator method before accepting a new phone number.
For best results:
- Make sure you can access at least one recovery method before changing the number.
- Update your email address first if it is outdated.
- Keep your new phone active and able to receive SMS or voice calls.
- Test sign-in after the change to confirm the new number works.
If you use an authenticator app, keep it available during the transition.
Some accounts use multiple verification layers, and losing access to all of them at once can create recovery delays.
Common Problems and Fixes
Changing an Amazon security phone number usually takes only a few minutes, but a few issues come up often.
Knowing the likely cause can save time.
Verification code not received?
Check for poor signal, blocked texts, Do Not Disturb settings, or carrier spam filtering.
If possible, try the voice call option instead of SMS.
Amazon says the number is already in use?
The number may already be linked to another Amazon account.
Remove it from the old account first if you own both accounts, or choose a different number.
Can’t find the phone settings?
Amazon periodically changes its interface.
Look for Login & security, Security settings, or Sign-in preferences under your account menu.
Account locked after repeated attempts?
Stop trying multiple times in a row.
Wait a short period, then try again or use Amazon support to restore access.
Best Practices After You Update the Number
Once you finish the update, take a few minutes to secure the rest of your account.
Small follow-up steps reduce the chance of future lockouts and unauthorized access.
- Confirm your email address is current.
- Review saved payment methods and addresses for accuracy.
- Enable or confirm two-step verification.
- Remove old devices you no longer use.
- Sign out of shared or public devices.
You should also keep your new number active and avoid recycling it with another person too quickly, since recycled numbers can sometimes lead to verification confusion in other services.
When to Contact Amazon Support
Contact Amazon support if you cannot access the old number, cannot receive verification codes, or keep getting blocked while trying to save the new one.
This is especially important if the number is tied to a primary account used for Prime, Kindle purchases, or business orders.
Support is also the right next step if you notice suspicious activity, such as unexpected login alerts or changes you did not make.
In those cases, update your password immediately and review recent sign-in activity if Amazon makes it available.