what is ssid
SSID. Stands for Service Set Identifier.. An SSID is a unique ID that consists of 32 characters and is used for naming wireless networks. When multiple wireless networks overlap in a certain location, SSIDs make sure that data gets sent to the correct destination.The SSID is different than the name that is assigned to a wireless router.n SSID is a unique ID that consists of 32 characters and is used for naming wireless networks. When multiple wireless networks overlap in a certain location, SSIDs make sure that data gets sent to the correct destination. The SSID is different than the name that is assigned to a wireless router.