Prepaid internet cards can be purchased at multiple retail outlets, such as Wal-Mart and Best Buy. They can be purchased both online and in local brick-and-mortar locations.
Cell phone carriers such as T-Mobile, AT&T and Verizon Wireless also offer prepaid Internet cards available at Wal-Mart. As of 2015, multiple companies specialize in providing customers with prepaid mobile phone and Internet services such as Internet-go.com, but these are only available online. Prepaid services do not require a service contract and provide customers with the option of only purchasing the amount of data needed at that time with an option to buy more later or as needed.