A mobile carrier is a company that provides wireless communication services to customers. They enable users to make phone calls, send text messages, and access the internet on their mobile devices. Mobile carriers operate their own networks, which consist of cell towers and other infrastructure to ensure coverage and connectivity. Customers typically choose a mobile carrier based on factors like coverage area, pricing, and available plans. Major mobile carriers include Verizon, AT&T, and T-Mobile. These companies often offer various services, including prepaid and postpaid plans, data packages, and family plans to meet different user needs.