Nokia Lumia 520 (AT&T Go Phone) No Annual Contract (Discontinued by Manufacturer) Reviews October 17, 2017 Get link Facebook X Pinterest Email Other Apps Nokia Lumia 520 (AT&T Go Phone) No Annual Contract (Discontinued by Manufacturer)Mobile Operating System: Windows Phone 8Carrier: AT&TColor: Not AvailableTouch Screen: YesBuilt-in Digital Camera: YesNokia Lumia 520 GoPhone (AT&T)