You can contact SBCGlobal.net customer service through several methods: 1. Phone Support: Toll-Free Numbers: You can call 1-830-202-2276 or 800-288-2020. These lines are available 24/7 for assistance with account setup, troubleshooting, and other inquiries. 2. Email Support: You can send an email to [email protected]. Make sure to include all relevant details about your issue to get a prompt response. 3. Live Chat: Visit the AT&T support page and use the live chat option to get real-time assistance. 4. Online Resources: Check out the AT&T Mail support page for troubleshooting guides and FAQs. If you prefer phone support, calling the toll-free numbers would be the quickest way to get help.