Registration of IMEI code

I've found my device has 2 IMEI numbers, … imei slot meaning How to get back missing IMEI Numbers of Unknown baseband on mostly Samsung mobile imei slot 1 and 2 my phone has two IMEI numbers, when transferring numbers does public mobile need the IMEI of my used SIM slot or the avaliable SIM slot?

imei sv slot 1 For your information, the device with two sim card slots will have two globally unique IMEI numbers ‍