@BHJBJHNJK
If your current sims are working you don't need them. They are just spares or replacements for 5g if you don't already have a 5g sim.
If you need to use them, you need to do a sim swap Guide: Sim Swap: a mini guide 2017 update
It doesn't matter which sim you use for each number as they will replace the one you do the swap from.
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