Just got an S9, do I need to use the SIM card from my old phone? its been a while

warof77

    Hey, so its been quite a few years since I got a new phone and I forgot. Do I need to pull the SIM card out of my old xperia z3 phone and put it in my S9 to get it working right? I got a SIM card shipped with the new S9 but cant remember which one to use. Sorry if it is a dumb question I am just blanking out here.

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