The SBCGlobal customer service number is 1(888)‑449‑4584, which connects you directly to support for login issues, password resets, account recovery, and email troubleshooting. Since SBCGlobal.net is now managed by AT&T, you can also reach help through AT&T’s main support line 1(800)‑288‑2020, where representatives assist with account verification, server settings, and security problems.