Why does my phone show 2 IMEI numbers

Why does my phone show 2 IMEI numbers what is imei slot 1 and slot 2 After 30th August 2019, such SIM slots will not be registered To check the status of a mobile device, dial *#06# and SMS each 15 digit IMEI to what is sit and go poker Anyway, only the IMEI of sim slot 1 is showing up blacklisted when I run the check Sim slot 2 IMEI is reported clean I am worried now that

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