user62042: I am trying to connect my SIM800L module to my arduino, but am confused what kinds of sim cards work. My phone currently is an IPhone XS, and I would like to take my tmobile sim card from there and put it into the module. I talked to a tmobile rep and they said my card could handle 2G devices. Would this work? Thanks!

user49068: It might work but you'd be better off getting a 2G dedicated card.  Hologram.io has a developer card that is $5 and free 1MB / month or something.  

62042: <p>I am trying to connect my SIM800L module to my arduino, but am confused what kinds of sim cards work. My phone currently is an IPhone XS, and I would like to take my tmobile sim card from there and put it into the module. I talked to a tmobile rep and they said my card could handle 2G devices. Would this work? Thanks!</p>
 49068: <p>It might work but you'd be better off getting a 2G dedicated card.  Hologram.io has a developer card that is $5 and free 1MB / month or something.  </p>
