Visit www.textmagic.com or download the TextMagic mobile app on google play store. Enter your phone number and country and click on Validate Number. This app will show you the status of the number if it is active or not. Another app you can use is Phone Number Monitoring.
How to check app usage on an iPhone
Get a report of your device use on iPhone
Answer: A: Go to Settings->Cellular, then scroll all the way to the bottom. It will tell you when your iPhone was last reset. If you never reset it, then that was the date it was activated.
You can find recent activity on your Android phone By entering the code *#*#4636#*#* on your phone dialler (any SIM for dual Sim phones), the phone displays usage statistics of various apps in hierarchy of time used when usage statistics is tapped.
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Enter your Passcode. Enter the iCloud password associated with the iPhone to disable Activation Lock.
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Get a report of your device use on iPhone
To enable the iCloud Data History feature, go to the app settings screen, tap on the “iCloud Data History” in the “Data Protection” section, and turn ON the “iCloud Data History” switch. As a prerequisite, you have to be logged in an iCloud account in the iOS settings.
In some situations, you might need to check if there is an active phone line at the property especially when you just moved in. An easy way to check if your phone line is active is by plugging a phone into your wall socket. If you hear a dial tone this means you have an active phone line.
Locate your device on your computer. Wait while your computer detects and activates your iPhone or iPad: If an alert appears that says "Set up as New" or "Restore from Backup," it means your iPhone or iPad is activated.
You can find and access the activity log from Facebook app on your iPhone and iPad in just a few taps. Just open the Profile tab in Facebook, tap the Gear (Settings) icon below your profile picture to open the Profile settings screen. Here you can access the Activity log which includes all your activity on Facebook.
The best way to see if the SIM is active would be to insert it into a device which has a compatible SIM card slot. The good news is inserting any older SIM card into a phone will not harm the phone in any way or change any of the settings.