How to find a lost iPhone?

If your iPhone, iPad, or iPod touch is lost or stolen - Apple Support

Nicholas1175 Said:

"Question: My friend lost his phone and I need to find it"

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Backtack your locations:

Have your friend backtrack their locations.

A Few Thoughts:

• HOME: Ask someone around (family or whomever) if they've come across it. Dial it. For me, it rand underneath the pillow on the couch, this morning.

• ELSEWHERE: If they were to go somewhere - have them call the place and ask if they’ve come across it. Typically, a cafe, or a library.

• BACKPACK: See if that have it in their backpack (or what have they). Maybe it lays in there?