If I have a old iPhone and I turn it on will I get the notification on my new iPhone that my old on is turned on if the Apple ID and everything is turned on?

Yktvdd Said:

"If I have an old iPhone and I turn it on will I get the notification on my new iPhone that my old on is turned on if the Apple ID and everything is turned on? I have an old iPhone that I left at my house and my parents know my password will I get a notification if they turn it on? I have my Apple ID and everything connected to it still"

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Verify a Device's Usage:

No. It will not tell you right-of-the-bat with a message or sorts in regards to the new iPhone.

So, is Find My enabled on your iPhone? If so, go here and see if it is seen: Find your Lost Apple device or AirTag with Find My - Apple Support. As it reads: "If you don't have an Apple device to use Find My, find your devices at iCloud.com/find." If they do not turn it on, then the location will not show until it has been powered back on and connected to the Internet. The location is all based on an IP Address.

Yktvdd Said:

"Even if they access my iMessage and new messages are coming into the old phone from my new phone and find my iPhone is on for the old phone that I still won’t get a notification about it ?"

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Change your Apple ID Password:

If iMessages is set up, then yes, the other iPhone will see it. So, change the Apple ID Password. Changing your Apple ID Password would make all of this messaging stop in an instant. Go here: Change your Apple ID password - Apple Support

Yktvdd Said:

"One more question what happens if they put it on airplane mode right when they turn it on will I still get a: notification on my new iPhone or no?"

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No. All will be safe.