Open Settings > Account > Change Number, enter old and new numbers on the same phone, then verify the new SIM to move chats and groups.
What The Change Number Feature Does
Big picture: the Change Number tool moves your account info, profile, and settings to the new phone number and removes the account tied to the old number. Your groups stay linked to you under the new number, and contacts see the update inside shared threads. This flow exists on Android and iPhone and keeps the change inside WhatsApp, not your carrier.
Why it matters: using the in-app flow avoids data loss. Deleting the account first erases history and breaks ties with groups, so use the feature inside Settings instead of a manual wipe. WhatsApp explains that Change Number transfers your account to a new number while keeping your presence intact and removing the previous registration.
What others see: group chats get a system line that shows your new number; you can also choose to push a contact-card alert to everyone, only people you chat with, or no one. This choice appears during the flow.
Before You Start: Check These Basics
- Confirm both numbers: the old number must be registered in WhatsApp on this phone, and the new number must be active with SMS or call reception.
- Insert the new SIM: place the new SIM (or activate eSIM) in the same device before you begin so verification reaches this phone.
- Update the app: install the current WhatsApp build from the App Store or Play Store to avoid version mismatches during verification.
- Know your PIN: if two-step verification is on, you’ll be asked for the 6-digit PIN after the SMS or call code.
- Back up: run a fresh chat backup to iCloud or Google Drive; this gives you a safety net during the switch or if you later change phones.
Many readers type “how can i change my number on whatsapp?” when a short checklist is all they need. The points above clear the snags that derail a smooth switch.
How Can I Change My Number On WhatsApp? Steps For Android And iPhone
Android
- Open Settings: tap ⋮ > Settings.
- Go to Account: choose Account > Change number.
- Enter both numbers: fill the old and new numbers in full international format, then tap Next.
- Choose notice: pick whether to notify all contacts, contacts you chat with, or no one. Groups get an automatic line in the chat.
- Verify the new number: enter the SMS or call code; add your two-step PIN if asked.
iPhone
- Open Settings: WhatsApp > Settings.
- Go to Account: Account > Change Number > Next.
- Enter both numbers: type old and new numbers, then continue.
- Choose notice: select who gets the change alert; groups show a system line.
- Verify the new number: complete SMS or call verification and the 6-digit PIN if enabled.
Heads-up: run Change Number on the same phone that holds the old account. After the move, you can continue normally, with your chats present on that device.
Changing Your WhatsApp Number On The Same Phone: What To Expect
Account hand-off: your profile photo, name, about, privacy choices, and blocks move to the new number. The old number’s account is removed inside WhatsApp once the hand-off finishes.
Groups: you remain a member in each group; the system adds a line that shows the new number to other members so they know who you are in that thread.
Chats: your device keeps local history. When you stay on the same phone, change-number does not require a restore, though a fresh backup is still smart.
Contacts: during the flow you can push a change notice to your address book. People also see the change inside any chat you share with them.
Moving Phones And Changing Numbers Together
Quick check: if you plan to swap phones and numbers at the same time, run Change Number on the old phone first, then move the account or chats to the new phone. This order keeps links to groups and lowers the chance of failed restores.
Android → Android
- Transfer the account: use WhatsApp’s in-app Account Transfer by scanning the QR on the new phone, or use the Chat Transfer flow. Keep both phones unlocked and on Wi-Fi.
- Restore only if needed: if you skip the in-app transfer, install WhatsApp on the new phone and restore from Google Drive backup.
iPhone → iPhone
- Use iCloud backup or device-to-device: back up on the old phone, then restore on the new one during setup, or use the in-app transfer if prompted.
Between Platforms
- iPhone → Android: use the Move chats flow offered during Android setup or the in-app transfer when available.
- Android → iPhone: use the Move to iOS path that brings WhatsApp chats during migration when prompted.
Plenty of folks also search “how can i change my number on whatsapp?” while they move across phones. The safe play is to finish the number change on the old device, then complete the phone-to-phone transfer.
What Transfers And What Doesn’t
Scope: the table below sums up what the Change Number tool moves and where you may need a manual step.
| Item | Moves With Change Number | Notes |
|---|---|---|
| Profile, name, about | Yes | Applied to the new number after verification. |
| Account settings & privacy | Yes | Includes last seen, who can message you, and blocks. |
| Chats on the same phone | Yes | Remain on device; a backup adds a safety net. |
| Cloud backups | No direct move | Create a fresh backup on the new number after the switch. |
| Groups | Yes | Membership stays; a system line shows the new number. |
| Calls & call logs | Partial | May not sync across phones; depends on transfer method. |
| Payments & linked services | Varies | Check country features and relink after the switch if needed. |
| Old account | Removed | WhatsApp deletes the account tied to the old number. |
Fixes If Verification Or Transfer Fails
- Check SIM activity: the new number must receive SMS or calls. Turn off call filters, and wait a few minutes between code requests.
- Confirm the old login: open WhatsApp with the old number on this phone before you start the change flow.
- Try call verification: if SMS stalls, use the call option, then type the code read by the voice bot.
- Turn off VPN: network masking can block code delivery.
- Update WhatsApp: install the latest build, then retry.
- Two-step PIN: if you forgot the 6-digit PIN, use the email reset link or wait for the lockout timer.
- New number already in use: if the new number shows as linked elsewhere, finish registration on this phone to take control.
- Still stuck: run Change Number again after a full reboot, then re-enter both numbers with the correct country code; if prompts mention account transfer, keep both phones nearby and on Wi-Fi.
Edge Cases And Special Notes
Dual-SIM phones: keep only the target SIM active during verification to avoid code mix-ups. After the switch, you can re-enable the second line. The Change Number screen expects a single new number.
eSIM moves: activate eSIM first so the code reaches the device. Then complete the flow as usual.
Old number unreachable: you can still change if the old number is already registered on this phone; the verification goes to the new number. If prompts say the old number isn’t active here, sign in with it on this device before starting.
Switching phones later: after you change numbers on the old phone, you can move the account to a new phone using the account-transfer or chat-transfer options. Keep both devices nearby, unlocked, and online.
Business app notes: the process in the WhatsApp Business app matches the steps above. You still go to Settings > Account > Change Number, enter both numbers, pick who gets notified, then verify.
Aftercare: once the switch is live, send a short line to key chats so they save the new entry. If you also changed phones, re-enable Face ID or fingerprint lock, review privacy choices, and create a new cloud backup under the new number.
Privacy, Notices, And Cleanup
Who gets notified: during the flow you can choose who receives a contact-card alert. Group threads also show an automatic line to other members. Pick the scope that fits your move—everyone, chats you message, or no one.
What your contacts need to do: ask close contacts to save the new number so your messages don’t land under an unknown entry. People in shared groups will see the system line even if you chose not to push a direct alert.
Old phone hygiene: once you confirm the new number works, remove the old SIM, sign out of cloud services on the old phone, and wipe the device if you plan to sell or recycle it. This step keeps your data tidy for the next owner.