Finding the SIM serial number for my iPad, without taking the SIM out

Earlier this afternoon, I was searching for my iPad’s cellular data number (CDN) and Subscriber Identity Module (SIM) serial number (I needed the last 6 digits for a password reset on my carrier’s billing portal).   The cellular data number is fairly straightforward (looking in the About screen in the General Settings) but the SIM is a little less so. My carrier (Three) advises taking the SIM out and physically inspecting it but I thought there had to be a way to do this in software…

…it turns out that there is: the SIM serial number is also known as the Integrated Circuit Card ID (ICCID) and Apple support article HT4061 details several ways to find this information, along with the device serial number, Universal Device Identifier (UDID), International Mobile Equipment Identity (IMEI) and CDN.

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