Yes, you can change your WhatsApp number and keep your message history
WhatsApp lets you change the phone number linked to your account without losing your chats, contacts, or media. The process takes a few minutes and works on both Android and iPhone. You have two routes: change your number while keeping the same account, or move to a new number and let your contacts know the switch happened.
The key difference is timing. If you're changing numbers before your old SIM card stops working, use the "Change Number" feature inside WhatsApp—it's the cleanest method and keeps everything attached to one account. If your old number is already inactive or you're switching carriers and want a fresh start, you'll uninstall and reinstall WhatsApp on your new number, then restore from a backup.
Key Takeaways
- Use WhatsApp's built-in "Change Number" feature if your old number still works; it preserves all chats and keeps your account intact.
- If your old number is already inactive, uninstall WhatsApp, reinstall it on your new number, and restore from a cloud backup (Google Drive on Android, iCloud on iPhone).
- Your contacts will see a system message in the chat thread saying you've changed your number, but you won't lose any conversation history.
- Back up your chats to Google Drive or iCloud before you start, even though the built-in change process usually preserves everything.
- The entire process—backup, number change, and restoration—typically takes 10 to 20 minutes depending on how many chats you have.
Changing your number while your old SIM still works
Open WhatsApp and go to Settings (the gear icon on Android, or the Settings tab on iPhone). Tap Account, then Change Number. Enter your old phone number in the first field, then your new number in the second field. WhatsApp will send a verification code to your new number—enter it when it arrives.
Once verified, WhatsApp uploads your account information to its servers under your new number. Your chats, groups, profile picture, and status all move with you. Contacts who have you saved will see a system message in your chat thread saying you've changed your number, but the conversation history stays visible to both of you. This is the fastest and safest method because everything happens within one account.
You don't need to do anything else. Your old number can be deactivated or given to someone else without affecting your WhatsApp account.
Switching to a new number when your old one is already inactive
If your old SIM card no longer works or you no longer have access to it, you can't use the Change Number feature. Instead, uninstall WhatsApp from your phone, then reinstall it from the Google Play Store (Android) or App Store (iPhone). When you open it for the first time, enter your new phone number and verify it with the code WhatsApp sends.
At the "Restore Chats" screen, WhatsApp will ask whether you want to restore from a backup. On Android, it looks for backups in your Google Drive account (the one linked to your phone). On iPhone, it looks for backups in iCloud. If you have a recent backup, tap Restore and WhatsApp will read your entire chat history, groups, and media. This process can take several minutes if you have a lot of messages.
The downside of this method is that your old contacts won't automatically know you've switched numbers—they'll see a new account on your new number. You'll need to tell people separately that you've changed. However, your chat history with them is restored, so when they message you on your new number, the old conversation will be visible.
Backing up your chats before you change numbers
Even though WhatsApp's change process is reliable, it's worth backing up manually first. On Android, open WhatsApp, go to Settings > Chats > Chat Backup, and tap Back Up to Google Drive. Choose which Google account to use and how often you want automatic backups (daily, weekly, or monthly). Tap Back Up to start when ready.
On iPhone, go to Settings > Chats > Chat Backup and tap Back Up to iCloud. Make sure you're signed into iCloud on your phone (Settings > [Your Name] > iCloud). Tap Back Up Now to create a backup right away.
A backup typically takes a few minutes. Once it's done, you can proceed with changing your number. If something goes wrong during the change, you'll have a recent copy of everything stored in the cloud.
What happens to your groups and contacts
When you change your WhatsApp number, you stay in all your groups automatically. Group members will see a system message saying you've changed your number, but you won't be removed or need to rejoin. Your profile picture, status, and "About" text all stay the same.
Your contact list doesn't change either. If someone has you saved in their phone under your old number, they'll still have that contact entry, but WhatsApp will link it to your new number once you've changed it. They can update the contact in their phone manually, or they can delete the old entry and add your new number fresh.
Telling your contacts about the change
WhatsApp sends an automatic notification to people in your chats, but it's a good idea to send a message yourself, especially to people you talk to regularly. You can send a broadcast message to multiple contacts at once without creating a group. Open WhatsApp, go to Settings > Broadcast Lists (Android) or Chats > Broadcast Lists (iPhone), and tap the plus icon to create a new list. Add the contacts you want to notify, then send them a message saying you've changed your number.
For close contacts or work relationships, a text message or email is often clearer than a WhatsApp notification, since they might not see the system message right away.
Troubleshooting if the change doesn't work
If WhatsApp won't let you use the Change Number feature, it's usually because your old number is no longer active or WhatsApp can't verify it. In that case, use the uninstall-and-reinstall method described above. If you're stuck on the verification screen and not receiving the code, check that you entered the number correctly (including the country code), and wait a few minutes before requesting the code again.
If you restore from backup and some chats are missing, it means your backup didn't include them. This can happen if a backup was interrupted or if you deleted chats before backing up. You can't recover deleted chats, but all chats that were in your backup will be restored. If you're missing recent messages, create a new backup on your old phone before the number change, if possible.
Frequently Asked Questions
Will my contacts lose my old chats when I change my number?
No. Your contacts will see a system message saying you've changed your number, but all the old conversation history stays in their chat thread with you. When they message you on your new number, they'll see the full conversation history together.
Can I change my WhatsApp number on a computer or web version?
No, you must change your number on your phone using the WhatsApp app. WhatsApp Web and WhatsApp Desktop are linked to your phone and will update automatically once you've changed your number on the mobile app.
What if I change my number but then get my old number back later?
If someone else gets your old number and registers it with WhatsApp, your account will be moved to that new person's phone. To prevent this, don't give your old number to anyone, or ask your carrier to deactivate it permanently. If this happens by accident, contact WhatsApp Support through the app (Settings > Help > Contact Us) to explain the situation.
Do I lose my WhatsApp status or profile picture when I change my number?
No. Your profile picture, status, "About" text, and all other profile information stay exactly the same. The only thing that changes is the phone number linked to your account.
How long does it take to restore chats after changing my number?
The restoration process depends on how many chats and media files you have. For most people, it takes 5 to 15 minutes. Very large accounts with thousands of messages and lots of photos or videos can take 30 minutes or longer. Don't close the app or turn off your phone while the restore is in progress.