New answers tagged sim
From the device, you can get this through Settings > Tap General > Tap About > Scroll to view the IMEI/ICCID/my Number.
Today I took the micro SIM out of an iPhone 4, cut it with scissors to fit the nano SIM loading bay of an iPhone 5S, and it worked fine. I had to cut away about 2mm of the micro SIM metal on one edge. I'd still recommend getting a nano SIM replacement though. :)
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