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Call AT&T Business

Have a large, medium, small or home-based business? Or are you ready to start a new business or grow your existing business? Need customer support about a calling plan, Internet access, website hosting, a billing plan? Try these links to information on our site about AT&T services for your business. Get numbers – many toll-free – to reach AT&T Customer Service representatives.

AT&T Business Customer Service Numbers

Business Billing Inquiries (AT&T billed)
800-342-5288
Business Billing Inquiries (Exchange carrier billed)
800-325-0138
Business Services
Includes Virtual Private Network Service, Dedicated IP Service, Business Internet Services, Business IP Dial Service, Security and Business Continuity Services, Hosting and Applications Services, Voice over IP Services, and Global IP Network Services.
800-248-3632
AT&T CallVantage® for Small Business
Sales: 866-816-3815
Service: 866-596-8464
Conferencing Services
Customer Service
800-222-0400
DSL Internet Service
877-937-5288
Global Video Service
800-221-7680
Government Markets
Customer Care
Service Provider Identification Number (SPIN)
143001192
See also: Access Reform