Detecting carriers for mobile devices

摘要

In one embodiment, a method includes receiving a request for a content object from a mobile-client system of a user, accessing SIM-card information associated with the mobile-client system the user, determining a carrier based at least on the SIM-card information, and sending the webpage to the mobile-client system in response to the request, where the content object has been customized based on the determined carrier of the mobile-client system.