What Is An ICCID Number? A Quick Definition… by Richard Goodwin | 19/04/2021 1:22 pm This blog post may contain affiliate links What is an ICCID number? How do they work? And do you need to know your SIM card’s ICCID number? Here’s what you need to know… The term ICCID stands for Integrated Circuit Card Identification Number, and it is a unique 18-22 digit code that contains information about a SIM card’s country, network settings, and ID number. The ICCID number – in most cases – is embossed on the actual SIM card itself, kind of like a barcode. Save However, some networks and carriers will omit the ICCID from the card and instead include it on the SIM card’s packaging or included papers.