> For the complete documentation index, see [llms.txt](https://ss7-attacks.telco-sec.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ss7-attacks.telco-sec.com/videos/locating-mobile-phones-using-ss7.md).

# Locating mobile phones using SS7

You are used to your mobile phone number following you around the globe.

But the same functionality that makes you reachable worldwide can also be used to track your whereabouts down to city-level – without you ever knowing about it.

{% embed url="<https://www.youtube.com/watch?v=TJTUIt7YomA>" %}

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