Changing my WhatsApp phone number
To use our Change Number feature on the phones listed below, please click on the appropriate article for specific steps: Android | iPhone | BlackBerry | Nokia S40 | Nokia S60 | Windows Phone | BlackBerry 10.
Note: Make sure to use the specific Change Number steps to migrate your account to your new number. If you simply verify a new number with WhatsApp (you might see a prompt to do this when you put a new SIM card in your phone and open WhatsApp) then your old account data will not migrate over to the new account.
Please do not swap SIM cards or phones frequently, or you will create problems in the verification process. Read this article for more information.
WhatsApp Support Team