My private home Wi-Fi network says there are 3 IP address connected

From another thread:

Out of an abundance of caution, I’ve masked the low parts of the IPv6 addresses involved (green) and what might be a name (blue).

Those are IPv6 addresses allocated to cellular carriers.

Specifically, those IPv6 addresses are allocated to AT&T.

You’ll probably want to discuss this connections report with your ISP. Presumably, that’s AT&T, using an AT&T router.

I don’t recognize the app, so I’m not sure about the context for these IPv6 addresses.

Active screen mirroring and screen recording activities will show an icon on the iPhone display:

… Status icons and symbols on your iPhone - Apple Support

I have 5 devices connected to my Router and it still says 3 Addresses. Please see the pic below. I will have to do a bit of internet browsing to understand this better. If I find something I will revert if this thread remains open.

crystell227 wrote:

it says there are 3 IP address connected as well.

On your iPhone?

It would be better if you can please re-post with a screenshot, in order to understand the phenomenon better. Images/pictures speak louder than words. 

Please understand this is a public forum: While attaching a Screenshot, do not provide any personal credentials, such as IP address, Card detail, email id, apple id, IMEI number, Serial Number, Phone number, Order ID, if you are sharing a map ensure your location is not identifiable, etc.

Do you have any other devices in your home that use the Internet? iPad or other tablet? Kindle? B&N Nook? A smart TV? Firestick? Google Chromecast? Hulu stick? Digital camera? Scanner? Printer? Home security devices (doorbell camera, interior our outside cameras, etc)? Smart appliances? Amazon Echo? Google Pod?

One thing you can do is to disconnect them using the router settings pages and see what breaks.

What do you think they are recording? It can’t be anything on your phone, which is encrypted.

and what isn’t it allowing? If you can log in to the router from your computer you can control anything on the router.

Those woule be other devices such as your spouses phone, a tablet, Amazon Alexa, smart devices, etc.

No one can view your content. And screen mirroring can only be turned on by you, not someone remote.

I found something that may be of some interest to you --> Why there are 3 Addresses under ipV6