AT&T Tech Support Back Door Numbers For those of you having issues with phone trees, or just want to talk to a live person. Here you go! DSL: 888-321-2375 UVERSE: 866-915-6188 DSL Tier2: 888-722-9337 x924 customers from NC, SC, FL, GA, AL, MS, LA, TN, KY might not be able to use this line