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I have 2 data-only sim cards that I use with 4G routers (Huawei E5576-320), and I need to be able to differentiate them. The "phone numbers" attached to the cards should allow me to differentiate them since they are displayed in my contract. Unfortunately, I can't find this information anywhere. I can't think of another way to tell them apart because the bodies of the cards are identical and I don't know which card (of credit-card format) I detached them from.

I checked the router settings but can't find the information anywhere. I also tried to put the sim cards in my phone (Samsung Galaxy S20 FE 5G) but the sim card manager from the settings app tells me "unknown number".

Is there a way to find this information? Or is there another way I could differentiate them? Thanks in advance!

Julien Vidal
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  • Do the data-only SIM cards support SMS? Then you could simply send an SMS containing the phone number to the number itself and see where the SMS is received. – Robert Nov 09 '22 at 11:10
  • They unfortunately don't. – Julien Vidal Nov 09 '22 at 11:32
  • The service provider finally sent me the numbers printed on each card, telling me which one was which. All clear. Thanks for your help Robert. – Julien Vidal Nov 13 '22 at 11:36

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