Yes, you can change your WhatsApp number and keep your message history
WhatsApp lets you change the phone number linked to your account while keeping all your existing conversations, contacts, and media. The process takes a few minutes and works on both Android and iPhone. You do not lose anything — your chat history stays on your phone, and your contacts see the change automatically once you complete it.
The key is using WhatsApp's built-in change number feature rather than straightforward switching your SIM card or uninstalling the app. If you switch numbers without telling WhatsApp first, your old account stays active for 30 days and your contacts may get confused about which number to use.
Key Takeaways
- WhatsApp's change number tool preserves all your chats, photos, and contact list when you move to a new phone number.
- You need both your old and new phone numbers active and able to receive SMS or voice calls during the change process.
- The change takes effect when ready, and your contacts are notified automatically — you do not need to tell them yourself.
- If you change your number without using WhatsApp's tool, your old account remains active for 30 days and may cause duplicate conversations.
How to change your number on Android
Open WhatsApp and tap the three-dot menu at the top right. Select Settings, then tap your name at the top. Choose Account, then Change number. WhatsApp will ask you to enter your old number and your new number.
You will then receive a verification code on your new number via SMS or a voice call. Enter that code to confirm. WhatsApp uploads your chat history to its servers during this step, then downloads it to your phone under your new number. The entire process usually takes two to five minutes, depending on how many messages you have.
After verification, WhatsApp notifies all your contacts that you have changed your number. Your old number is removed from your account, and you can no longer use it to log into WhatsApp on this phone.
How to change your number on iPhone
Open WhatsApp and tap Settings at the bottom right. Tap your name, then Account, then Change number. Enter your old number and new number when prompted.
WhatsApp sends a verification code to your new number. You can receive it by SMS or request a voice call if SMS does not arrive within a minute. Enter the code, and WhatsApp syncs your chat history to your new number. The process mirrors Android and takes the same amount of time.
What you need before you start
Your old phone number must still be active and able to receive text messages or phone calls. If you have already switched SIM cards or cancelled your old number, you cannot use the change number feature. In that case, you would need to set up WhatsApp fresh on your new number, which means losing your chat history on that phone.
Your new phone number must also be active before you begin. Have both numbers ready and make sure you have a working internet connection — WhatsApp uses data to upload and read your chat history, not SMS.
If your old number is no longer available, contact WhatsApp support through the app's help section. They cannot recover your chats, but they can help you understand your options for moving forward.
What happens to your chats and media
All your conversations, including group chats, stay on your phone and remain linked to your account. Photos, videos, voice messages, and documents you have received are preserved. Your contact list does not change. When you open WhatsApp after the change, everything looks exactly as it did before.
Your contacts see your new number in their chat with you automatically. They do not receive a separate notification message — WhatsApp handles the update behind the scenes. If a contact has you saved under a custom name, that name stays the same.
What happens to your old WhatsApp account
Your old number remains linked to a WhatsApp account for 30 days after you change your number. During this window, if someone tries to message your old number, they can still reach you through WhatsApp because the system recognizes the change. After 30 days, the old account is deleted permanently.
If you do not use WhatsApp's change number feature and straightforward switch to a new SIM card, both numbers will have active WhatsApp accounts for 30 days. This can create confusion — your contacts may see two separate conversations, one with your old number and one with your new number. Using the official change number tool prevents this problem.
Changing your number on a different phone
If you are switching to a new phone at the same time you change your number, the process is slightly different. Install WhatsApp on your new phone, then use the change number feature. WhatsApp will read your full chat history to the new device during verification.
Make sure you have your old phone available during this step, because you need to receive the verification code on your new number. Once the code is entered and verified, your account is fully transferred to the new phone with the new number.
Frequently Asked Questions
Will my contacts know I changed my number?
WhatsApp notifies your contacts automatically, but not with a message in the chat. They will see your new number in their contact list and in the conversation thread. You do not need to tell them yourself, though you may want to send a quick message to make sure they update your contact information on their end.
What if I do not receive the verification code?
WhatsApp tries SMS first, then offers a voice call option after one minute. Make sure your new number can receive texts and calls. If you still do not receive a code, wait a few minutes and try again. If the problem continues, check that you entered your new number correctly and that it is active with your carrier.
Can I change my number if I do not have my old phone anymore?
No — you need your old number to be active and able to receive a verification code. If your old number is no longer available, you cannot use the change number feature. You would need to set up WhatsApp fresh on your new number, which means starting without your previous chat history on that phone.
Do I lose my group chats when I change my number?
No. All group chats stay on your phone and remain linked to your account. Group members see your new number automatically. You stay in all the same groups and can see the full conversation history.
How long does the change take?
The verification and sync process usually takes two to five minutes, depending on how many messages and media files you have. During this time, WhatsApp uploads your chat history to its servers and downloads it under your new number. You can use WhatsApp normally once the verification code is accepted.