Yes, you can change your number on WhatsApp without losing your chats

WhatsApp lets you change the phone number linked to your account while keeping all your message history, groups, and contacts intact. The process takes a few minutes and works whether you are switching carriers, getting a new SIM card, or straightforward updating to a different number on the same phone.

The key is using WhatsApp's built-in change number feature rather than just uninstalling and reinstalling the app. If you skip this step, your old account stays active and your contacts may not know how to reach you on the new number.

Key Takeaways

  • WhatsApp's change number tool preserves your chat history, groups, and profile picture when you switch to a new phone number.
  • You need access to both your old number and your new number during the change process to receive verification codes.
  • The change number feature is found in Settings > Account > Change Number on Android and iPhone.
  • After you change your number, your contacts are notified automatically, but you stay in existing groups without needing to rejoin.
  • If you no longer have access to your old number, you can still change it by waiting 30 days or using account recovery options.

How to change your number on Android

Open WhatsApp and tap the three-dot menu icon in the top right corner. Select Settings, then tap Account, then Change Number. Enter your old phone number in the first field and your new phone number in the second field, then tap Next.

WhatsApp will send a verification code to your new number via SMS or call. Enter that code when prompted. The app will then notify all your contacts that you have changed your number. Your chats, groups, and media stay exactly as they were.

How to change your number on iPhone

Tap Settings at the bottom right of the screen. Select Account, then Change Number. Type your old number and new number into the fields provided, then tap Next. You will receive a verification code on your new number — enter it to confirm the change.

Once verified, WhatsApp updates your account and sends notifications to your contacts. All your previous conversations and group memberships remain active on your account.

What happens to your chats and groups when you change your number

Your entire chat history stays on your phone and linked to your WhatsApp account. One-on-one conversations, group chats, voice messages, photos, and videos all remain exactly where they were. You do not need to read them again or rejoin any groups.

Your contacts receive a notification that you have changed your number, but they do not lose the ability to message you. If they have you saved in their phone contacts under your old number, they can still reach you — WhatsApp recognizes the account change and routes messages correctly.

What to do if you no longer have access to your old number

If your old SIM card is gone, your old phone is lost, or your carrier deactivated the number, you have two options. The first is to wait 30 days — after that period, WhatsApp allows you to change your number without needing to verify the old one.

The second option is to use WhatsApp's account recovery process. Go to Settings > Account > Request Account Info, or contact WhatsApp Support directly through the app. Explain that you no longer have access to your old number and provide proof of identity if requested. WhatsApp can then help you regain access to your account and change the number.

Timing and what to expect during the change

The entire process usually takes five to ten minutes. The verification code arrives within seconds of requesting it. Once you enter the code, the change is when ready — your account is now linked to your new number.

Your contacts will see a notification in their chat with you saying that you have changed your number. This notification appears automatically and you cannot disable it. Contacts who have your old number saved will still be able to message you, and WhatsApp will show them your updated number the next time they open the app.

Changing your number when you get a new phone

If you are also getting a new phone at the same time, install WhatsApp on the new device first and sign in with your old number. Then use the change number feature to update to your new number. This keeps everything in one place and avoids having two active accounts.

If you have already set up WhatsApp on the new phone with your new number, you can still go back and use the change number tool. It will merge your old account into the new one, bringing all your chats with it. Do this as soon as possible to avoid confusion with contacts who may be messaging both numbers.

Frequently Asked Questions

Will my contacts know I changed my number?

Yes. WhatsApp automatically sends a notification to all your contacts telling them you have changed your number. The notification appears in your chat with them and includes both your old and new numbers. You cannot turn off this notification.

Do I lose my groups when I change my number?

No. You stay in all your groups and keep access to the full chat history. Group members will see a notification that you changed your number, but you do not need to rejoin or ask for permission to stay.

What if I change my number and then change it back?

You can change your number as many times as you need. Each time you do, your contacts receive a notification. Your chat history and groups remain linked to your account throughout all the changes.

Can I change my number if I am using WhatsApp Business?

Yes. WhatsApp Business has the same change number feature in Settings > Account > Change Number. Your business profile, catalogs, and message history all stay with your account when you switch numbers.

What happens if someone messages my old number after I change it?

Messages sent to your old number will not reach you. If your old number is reassigned to someone else, they will receive those messages instead. This is why it is important to notify your contacts of your new number and update it in your phone's contact list.