Is my NNID region locked?

Maybe my question is a little dumb, but better be safe than sorry!
Currently I own an American region 3DS, but, I moved and I am now living in Europe.
In the sad event that I need to buy a new 3DS, for me be able to do a system transfer from my old 3DS to my new one so I don't lose my games, DLCs and softwares (like my pokebank account), do I need my new 3DS to be american too?
I was thinking I could just use system transfer to the new European console and re-download my bought titles back at this new European 3DS, but I'm afraid now so it's better to ask.
Thanks in advance!
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How do I change my NNID region?
Access Nintendo Network services from a non-Nintendo device like a PC or smartphone.How do I unlock my NNID?
What to doHow do I know if my 3DS is region locked?
Check the game card itself (Nintendo 3DS Games Only)for a code printed on the cartridge label. If the code does not end in "USA," then it is meant for an overseas market.How do I know if my Nintendo 3DS has NNID?
On a linked system in the Nintendo 3DS family: From the HOME Menu, tap System Settings, and then tap Nintendo Network ID Settings. The Nintendo Network ID will be displayed on the top screen.Play Import games on Nintendo 3DS \u0026 Disable the Region Lock
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Images: Rodrigo Burgos S., Meruyert Gonullu, Meruyert Gonullu, Meruyert Gonullu