An SSID (Service Set Identifier) is a sequence of characters that uniquely names a Wi-Fi network. It is sometimes referred to as a network name. An SSID allows stations to connect to the desired network when multiple independent networks operate in the same physical area. SSIDs can reach up to 32 characters in length and are used in home and business Wi-Fi networks. Wireless routers and access points broadcast SSIDs so intended users can find and connect to a wireless network. Router manufacturers may create default SSIDs by using the manufacturers name and adding random numbers and letters. Changing the default SSID to another string of characters is also common practice to cause less confusion in an area with multiple wireless networks. Most routers will have the name of the SSID labeled somewhere on the router, typically located either on the bottom, back, or side. Wi-Fi network passwords, or WPA keys, should also be labeled here. If someone has changed the router SSID, the best option is to connect the router to the computer via an ethernet cable and log into its web interface.