Learn the official way to change your WhatsApp phone number while keeping your chats, groups, media files, and account information safe.
Changing your mobile number doesn't mean you have to lose years of WhatsApp conversations. Whether you're switching to a new SIM card, changing mobile networks, or replacing your old phone number for security reasons, WhatsApp includes a built-in Change Number feature that safely transfers your account to the new number.
Using the official method keeps your personal chats, group conversations, profile information, media files, privacy settings, and account history connected to your new number. If the process is done incorrectly, however, you could temporarily lose access to your account or confuse your contacts.
This guide explains everything you need to know before changing your WhatsApp number and shows you the safest method for both Android and iPhone users.
You do not need to create a new WhatsApp account when changing your phone number. The official Change Number feature moves your existing account to the new number while keeping your chat history on the device.
What Happens When You Change Your WhatsApp Number?
When you use WhatsApp's official Change Number feature, the application updates your account information without deleting your conversations.
💬 Chats
Your personal and group chats remain available on your device.
👥 Groups
You stay in your existing WhatsApp groups without needing to join again.
🖼️ Media
Your photos, videos, voice notes, and documents remain linked to your chats.
🔒 Settings
Your profile photo, privacy settings, blocked contacts, and preferences are preserved.
Before Changing Your WhatsApp Number
Before starting the process, make sure everything is ready. Spending a few minutes preparing can help prevent unnecessary problems later.
- Update WhatsApp to the latest version.
- Insert the new SIM card into a phone that can receive SMS or phone calls.
- Keep your old number active until the transfer is complete.
- Create a fresh WhatsApp backup.
- Ensure you have a stable internet connection.
- Charge your phone to at least 50% battery.
Do not delete WhatsApp before changing your number. The Change Number feature must be performed while your existing WhatsApp account is still active.
How to Change Your WhatsApp Number Without Losing Chats
Open WhatsApp Settings
Launch WhatsApp and tap the three-dot menu (Android) or Settings (iPhone).
Open the Account Menu
Navigate to:
Read the information displayed by WhatsApp, then tap Next.
Enter Both Phone Numbers
Type your current WhatsApp phone number in the first field, then enter your new phone number in the second field. Make sure both country codes are correct.
Choose Whether to Notify Your Contacts
WhatsApp allows you to automatically inform your contacts that your number has changed. You can notify:
- All contacts
- Contacts you have chats with
- Selected contacts only
Your WhatsApp groups are notified automatically, even if you choose not to notify individual contacts.
Verify Your New Phone Number
WhatsApp will send a verification code to your new number via SMS or phone call. Enter the code to confirm ownership of the new number.
After successful verification, your WhatsApp account will immediately move to the new number while keeping your existing chats and account information on the device.
- All existing chats.
- Group memberships.
- Photos and videos stored in chats.
- Documents and voice notes.
- Profile picture and About information.
- Privacy and security settings.
- Blocked contacts list.
Changing Your WhatsApp Number and Phone at the Same Time
If you are replacing both your phone number and your smartphone, it is recommended to move your WhatsApp account to the new number before transferring your chats to the new device. This reduces the risk of transfer errors and helps keep your account information synchronized.
Change Your Number on the Old Phone
Use the Change Number feature while your old phone is still working and connected to the internet.
Create a Fresh Backup
After changing your number successfully, immediately create a new WhatsApp backup using Google Drive (Android) or iCloud (iPhone).
Transfer WhatsApp to the New Phone
Install WhatsApp on your new device, verify your new number, and restore your latest backup or use WhatsApp's official chat transfer feature.
Changing Your WhatsApp Business Number
WhatsApp Business users can also use the official Change Number feature. Business information such as your profile, catalog, labels, and chat history normally remains linked to your account after successful verification.
If you communicate with customers regularly, notify them about your new business number through your website, email, or social media to avoid missed messages.
Common Mistakes to Avoid
❌ Deleting WhatsApp First
Uninstalling WhatsApp before using the Change Number feature can complicate the migration process.
❌ No Recent Backup
Always create a fresh backup before making any major account changes.
❌ Wrong Country Code
Entering an incorrect country code may prevent successful verification.
❌ Old SIM Removed Too Early
Keep the old number active until the transfer has been completed successfully.
How to Fix Common Problems
Verification Code Not Received
- Check that your new SIM card can receive SMS messages.
- Confirm the phone number and country code are correct.
- Wait for the countdown before requesting another code.
- Use the voice call verification option if available.
Chats Missing After Changing the Number
If your chats do not appear, make sure you changed your number using WhatsApp's official feature and restore the most recent backup if necessary.
Contacts Still See the Old Number
Some contacts may continue seeing your previous number until they refresh their contact list or receive a new message from you. Saving your new number in their contacts also helps update the information.
Security Tips After Changing Your Number
- Enable Two-Step Verification for additional account protection.
- Review linked devices under Linked Devices and remove any you no longer use.
- Check your privacy settings after completing the migration.
- Inform trusted contacts about your new number to reduce the risk of impersonation.
- Keep automatic backups enabled for future protection.
Frequently Asked Questions (FAQ)
Will I lose my WhatsApp chats after changing my number?
No. If you use WhatsApp's official Change Number feature, your existing chats remain on your device.
Will I stay in my WhatsApp groups?
Yes. Your group memberships remain active after changing your phone number.
Will my contacts know that I changed my number?
You can choose whether WhatsApp automatically notifies your contacts. Groups are notified automatically.
Can I change my number without changing my phone?
Yes. The Change Number feature works even if you continue using the same smartphone.
Can I change my phone and number together?
Yes. Change the number first, create a fresh backup, then transfer WhatsApp to the new phone.
Does changing my number delete photos or videos?
No. Your existing media files remain available together with your conversations.
Is the Change Number feature free?
Yes. WhatsApp provides this feature free of charge for all supported Android and iPhone users.
Final Thoughts
Changing your WhatsApp phone number is a simple process when you use the official Change Number feature. Instead of creating a new account and risking the loss of important conversations, WhatsApp allows you to move your existing account, groups, profile information, and media to your new number with minimal effort.
Before making any changes, create a fresh backup, verify that your new number can receive SMS messages, and keep your old number active until the process is complete. Following these best practices will help ensure a smooth transition without losing your valuable WhatsApp data.
