i have lost my phone and imei number how i can get it

The IMEI number is not going to help you find your iPhone. If you are looking for your IMEI number for other reasons that you can see that number printed on the box of the iPhone. You may also contact your carrier and they should be able to relay the information to you.

For you lost iPhone, refer to the instructions in this guide published by Apple 👉 If your iPhone, iPad, or iPod touch is lost or stolen - Apple Support

Axel F.