Your wireless at home and your cell phone data work in similar ways. They use wireless signals to connect you to the internet. When you connect, the wireless or data give you an address that tell your device where to go to find internet.
The main stuff that is/can be store are your DNS requests. What’s DNS? Well, it provides a name to an IP address. So instead of going to 172.217.10.36 you go to www.google.com. Those lookups can be stored and referenced by a home network and are stored and can be looked up by your ISP/phone carrier.
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