Wireless carriers are companies that provide mobile communication services to consumers and businesses. They enable users to make phone calls, send text messages, and access the internet through cellular networks. Major wireless carriers include Verizon, AT&T, and T-Mobile, each offering various plans and coverage options. These carriers operate by using a network of cell towers that transmit signals to and from mobile devices. They also manage the infrastructure needed for data transmission, ensuring that users can connect seamlessly while on the go. Wireless carriers often offer additional services, such as mobile devices and accessories.