Will it matter if I use my current active number?

So, I have a Note9 on AT&T (still owe payments) and I just got a S10 5G on Verizon. My question is, Verizon (on the website) is allowing me to transfer my number on the Note with AT&T to my new phone on Verizon. My question is though, if I was to do that, will it mess with my account on AT&T? In order... show more So, I have a Note9 on AT&T (still owe payments) and I just got a S10 5G on Verizon. My question is, Verizon (on the website) is allowing me to transfer my number on the Note with AT&T to my new phone on Verizon. My question is though, if I was to do that, will it mess with my account on AT&T? In order for me to make payments on the Note9, does my number that was created on it have to see be there or will I be fine and I'll just go about making payments like normal? Thanks so much!
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