An International Mobile Subscriber Identity (IMSI) number is a 15-digit serial number that identifies your SIM card. It is used to identify your account. Similar to your phone's IMEI (International Mobile Equipment Identity) located on your phone, it is used to identify you on a mobile network.
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Tactical Tech's Me and My Shadow project helps you control your data traces, see how you're being tracked, and find out more about the data industry.
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by Tactical Technology Collective is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.