WhatsApp is a messaging app with over 1 billion active users. It’s been around since 2009 and is one of the most popular messaging apps on the market. When you change your WhatsApp number, you’re essentially telling WhatsApp that you no longer want to be associated with that number. This means that any messages sent to that number will be sent to the new number instead. If you want to keep your old WhatsApp number, you can do so by going into your account settings and selecting “Keep my old number.” However, this will mean that any messages sent to your old number will not be received by anyone who has switched to the new number. ..