Finding the correct AT&T customer service number is essential, as the company operates with different departments and specialized toll-free lines for Wireless, Internet, Billing, and Business services. The general support number varies based on your specific service type.
The two main residential support numbers you need are:
- For Wireless/Mobile Service: 1-800-331-0500 (or simply 611 from an AT&T mobile phone).
- For Internet/Home Phone/U-verse TV: 1-800-288-2020.
This guide provides a comprehensive list of all critical AT&T contact numbers, broken down by department and service type.
Primary AT&T Customer Service Contact Numbers (Residential)
Use these numbers for standard billing inquiries, technical support, and account changes for home services.
| Service Type | Phone Number | Availability | Notes |
| Wireless / Mobile Support | 1-800-331-0500 | 24/7 | Dial 611 directly from your AT&T mobile device for faster access. |
| Internet / Fiber / U-verse TV | 1-800-288-2020 | 24/7 | For technical support, installation, and general account questions related to wired home services. |
| AT&T Prepaid | 1-800-901-9878 | Varies | For account management, plan changes, and balance checks for prepaid lines. |
| Support for Travel Abroad | +1-314-925-6925 | 24/7 | For urgent international troubleshooting while traveling. |
Billing and Account Management Support
If your inquiry is specifically about your bill, payments, or setting up features, use the dedicated numbers below.
Residential Billing & Payment
- General Billing/Account Help (Wireless): 1-800-331-0500
- General Billing/Account Help (Internet/Home Phone/TV): 1-800-288-2020
- Pay Your Bill Without Signing In: You can make a fast payment online at the AT&T website by providing your account number or phone number and ZIP code.
Business and Enterprise Billing
AT&T Business customers have specialized numbers for complex billing issues:
| Business Billing Service | Phone Number |
| General Business Billing (Fiber/DSL/U-verse) | 1-800-321-2000 |
| Global Enterprise Billing & Collections | 1-800-235-7524 |
Specialized AT&T Technical and Support Lines
For niche services or urgent issues, these specialized numbers will connect you to experts immediately.
| Specialized Support Topic | Phone Number | Availability |
| FirstNet (Public Safety Network) | 1-800-574-7000 | 24/7 |
| Device Insurance Replacement | 1-888-562-8662 | Varies |
| Wireless Fraud / Global Security | 1-877-844-5584 | Varies |
| Disability Resources | TTY: 1-866-241-6567 | Limited Hours |
Frequently Asked Questions
What is the quickest way to reach AT&T support?
For Wireless customers, the quickest way to reach support is by dialing 611 directly from your AT&T mobile phone. For most other services, starting with a Live Chat session on the official AT&T Support page often resolves minor issues faster than calling.
Can I get technical support for AT&T Fiber Internet at any time?
Yes. The AT&T Internet and Home Phone support line (1-800-288-2020) is available 24/7 for troubleshooting connectivity issues, restarting your gateway, or checking for outages.
What should I do before calling AT&T customer service?
Before you call, have the following information ready to expedite your service request:
- Your Account Number.
- The Phone Number associated with the service you are calling about.
- Your Security Passcode or the last four digits of the Account Holder’s Social Security Number.
- A detailed description of the problem (e.g., “Internet light is red,” or “Cannot make international calls”).
Conclusion
AT&T offers distinct contact numbers tailored to each of its major service categories. For fast, effective support, always use the number specific to your need: 1-800-331-0500 for mobile service, 1-800-288-2020 for internet and home service, or refer to the AT&T Business Customer Service Contacts directory for enterprise inquiries.
