Recent content by justasktom

When people switch thier cellular connection to a home or public Wi-Fi connection to save on data usage, does the ISP that provides the Wi-Fi service know the cell phone numbers to thier smartphone devices when connected? What do the ISP's know about the smartphone devices that connect to them...

Can any ISP see peoples mobile numbers/cell phone numbers to thier smart phone devices when they connect to them over wi-fi? Like when people want to save data usage by switching thier smart phones' cellular service to the wi-fi service in thier homes or the wi-fi at a friends place etc...