when transferring, does piblic need avaliable IMEI

Fairphone 5: IMEI & Serial Numbers of the Phone and its Spare Parts imei slot meaning This is accomplished with one Phsyical SIM card and one eSIM Both IMEI are listed on your iPhone even when only one is in use imei slot 2 Therefore,the MS will have two IMEIs, one for each 'SIM slot' When you buy a new MS, you will find the IMEI number printed on the box of the MS

imei slot 1 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?