quick noob question

Maxis Postpaid RM128 + 2 supplementary lines (RM48+RM48), no more under contract.
all numbers is 012-xxx xxxx

Can I port out MNP principle line straight into prepaid Unifi bebas, then the two supplementary to Celcom XPAX prepaid? Each number will use diff myKad after this no more tie to me.

or I need to split within maxis first? (like split to hotlink etc.)