As you already know, the IMEI is a number that identifies any smartphone unmistakably. It's fifteen digits long and it stands for International Mobile Equipment Identity. With this number, our device is identified all over the world as it's transmitted over the GSM network every time we connect.
An app to change our Android's IMEI
If you're wary of your privacy, you might be worried about the fact that each time you're mobile device connects to the network, it's identified by means of its IMEI. Therefore, if you also one of those people that thinks that the NASA is deceiving us and that the Earth is flat, and that vaccines are an invention made by the Illuminati to control our mind, download Chamelephon right now.
This application allows us to generate different IMEI numbers that are perfectly valid for our device. However, there are two minor drawbacks. The first one is that it only works on rooted devices and the second one is that it only works on devices with a MediaTek chipset.