Porting SIM1 To Sim2

Gillor Posts: 794
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I have a dual SIM Xiaomi mobile with slot one containing a Three Mobile SIM, on which the contract expires at the end of this month, and in slot two a Lebara monthly rollover contract SIM which I have had for about twelve months.

The Three Mobile SIM is currently my main contact number but when my Three Mobile contract finishes I would like port over this number to my Lebara SIM.

I know I can do this if I was moving to a new network with a brand new SIM but is it possible to do this with a SIM I have using for a year? Or will I have to obtain a new Lebara SIM/take out a new contract in order to to make the transfer?


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