AWS (Amazon) servers

[MamaCat]

Can anyone tell me why my J7 system apps are constantly trying to call out to various Amazon AWS servers? I am using a firewall app on my phone right now to make heads and tails of the traffic. Groups of system apps try to call out to Amazon servers chronically. I am currently blocking this traffic and have not had any problems with my phone. But I want to know a couple things.
1. Is this normal and if so, what is it for? (I'm presuming data mining)
2. If this is not normal, can anyone point me in the right direction as to what to look at for the culprit.

I am NOT rooted. I have actually factory reset this phone more times than I care to count due to someone hacking my internal home network (from the inside).

An example of the system apps in question are things like AASservice, Application Installer, BBC Agent, Camera Test, BluetoothTest, CDFS Mode, com.qualcomm.atfwd.com and many, many more.

 

[Dannydet]

Install this and allow / block apps as needed...
https://play.google.com/store/apps/details?id=eu.faircode.netguard

 

[svim]

AWS dominates the cloud services market, just over a third. That's more than the total of its competitors -- Google, Microsoft, and IBM -- combined, so it's not surprising that a lot of apps are pointing in that direction.
https://www.comparethecloud.net/articles/here-is-why-aws-still-dominates-the-cloud-market/