AT&T Customer Service Numbers, Internet, Billing and Complaints

AT&T uses different support routes for internet, Fiber, Internet Air, home phone, wireless service, billing, outages, equipment returns and fraud. For AT&T Internet or home-phone help, call 1-800-288-2020. AT&T lists this main support number as available 24 hours a day, seven days a week.

AT&T contact information checked and updated August 29, 2026.

AT&T Customer Service Contents

• AT&T phone numbers
• AT&T or AT&T Wireless?
• Choose the right department
• Billing and payment problems
• AT&T COR DF card charge
• Internet outages and credits
• Slow internet and Wi-Fi
• Installation and technician appointments
• Moving, cancellation and equipment returns
• Home phone, U-verse and email help
• Fraud and account security
• Complaints and escalation
• Customer reviews
• Frequently asked questions

AT&T Customer Service Phone Numbers

AT&T lists its main Wireless and Internet or home-phone support numbers as available 24/7. A specialized billing, cancellation, accessibility, fraud or business department may follow narrower live-agent hours. Use AT&T’s official contact page to select the service and confirm current options.

Main AT&T Page or AT&T Wireless Page?

Keep both CSN pages. They answer distinct primary searches, and this scope statement plus reciprocal internal linking helps users and search systems understand which page fits the problem.

Choose the Correct AT&T Support Route

Before Contacting AT&T

• Identify whether the issue involves internet, home phone, U-verse, wireless, prepaid or business service.
• Gather the account number, account owner’s name, service address, billing ZIP code and approved verification method.
• Save the current and previous bills, offer, order, payment record and earlier case numbers.
• Record the gateway, modem, router or device model and serial number privately.
• Keep appointment confirmations, equipment-return receipts, tracking and chat transcripts.
• State the requested outcome: restored service, repair, corrected bill, credit, refund, cancellation or written explanation.

Do not post an account passcode, password, Social Security number, complete payment-card or account number, equipment serial number or one-time code in a public review.

AT&T Billing and Payment Problems

An AT&T bill can change because a promotion ended, the plan or speed changed, service was added or removed, a partial-month amount appeared, an equipment or technician charge posted, a late fee applied, taxes changed or an AutoPay, paperless-billing or bundle discount ended.

How To Review a Higher AT&T Bill

1. Download the current and previous bills from myAT&T.
2. Compare each service, line, fee, discount and credit—not only the total.
3. Look for promotion-ending or plan-change notices.
4. Check partial-month charges, equipment, installation and technician fees.
5. Confirm AutoPay, paperless billing and the required payment method remain active.
6. Ask AT&T to identify the date and action that produced each disputed item.
7. Request a case number and the exact bill on which a correction should appear.

Some discounts or credits may take more than one bill period to appear; current AT&T guidance says certain discounts can take up to three bill periods. The terms of the specific offer control, so keep the offer and continue checking until the credit actually posts.

Duplicate, Missing or Misapplied Payment

Confirm whether the bank transaction is pending or completed, which AT&T account number was used, whether AutoPay also ran and whether more than one account uses the payment method. Save the AT&T confirmation and the financial statement.

AT&T’s payment-resolution process requests the transaction date, amount, account information, explanation and supporting statement. AT&T says a response can take up to five business days and advises customers to keep paying the bill while it reviews the concern to prevent service interruption.

AT&T COR DF Charge on a Card Statement

AT&T COR DF, ATT COR DF or T COR DF may identify an AT&T device, accessory, equipment, sales-tax, down-payment or order-related card transaction. It can appear separately from the monthly wireless bill, particularly when a financed device’s sales tax or down payment is collected at checkout.

Compare the amount and date with AT&T order history, device installments, receipts, shipping notices and every authorized card user. A Dallas or Atlanta location in the descriptor can reflect merchant or processing information and does not prove where a purchase occurred.

The dedicated AT&T COR DF charge guide explains common variations and verification steps. Because this descriptor often involves a wireless device or order, start with the AT&T Wireless guide or call 1-800-331-0500. If no authorized purchase explains a completed transaction, contact the card issuer promptly through the number on the back of the card.

AT&T Internet Outages and Service Credits

Before factory-resetting a gateway or scheduling a technician, use the AT&T outage checker. Sign in for information tied to the service address, review restoration estimates and save screenshots when an extended outage affects work, safety or other important use.

How To Check an Outage

1. Check whether AT&T reports a network interruption for the address.
2. Determine whether every device is affected.
3. Test Wi-Fi and a wired Ethernet connection separately when possible.
4. Record the gateway’s power, broadband and service lights.
5. Save the outage start time, alerts, estimated restoration and repair-ticket number.

AT&T Guarantee for a Qualifying Internet Outage

AT&T says eligible residential Fiber or Internet Air customers may receive a full day of service credit for a qualifying network interruption lasting 20 minutes or more. AT&T determines eligibility; weather, natural disasters, power loss at the premises and other exclusions can apply. Qualifying bill credits may take one or two billing cycles.

Review the current AT&T Guarantee terms rather than assuming every interruption qualifies. Keep the outage notification and check later bills for the credit.

Slow AT&T Internet or Wi-Fi

A slow connection can involve the AT&T network, gateway, Wi-Fi coverage, equipment placement, one device or heavy use inside the home.

1. Check for a reported outage.
2. Restart the gateway by disconnecting power, waiting at least 20 seconds and reconnecting it.
3. Allow the gateway to finish restarting before testing.
4. Run a wired speed test near the gateway.
5. Compare wired and wireless results on more than one device.
6. Test at several times and locations.
7. Review connected devices, cloud backups, cameras, game downloads and other heavy use.
8. Use AT&T Internet support or Smart Home Manager for diagnostics.

A normal restart is different from a factory reset. Holding the reset button can erase customized Wi-Fi names, passwords and settings. Do not factory-reset the gateway unless the official instructions or an AT&T representative call for it.

What To Tell Technical Support

• Whether service is completely down, intermittent or only slow
• Whether wired Ethernet works
• The affected devices and rooms
• Speed-test dates, times and results
• The gateway model and status-light pattern
• Any error message and troubleshooting already completed

AT&T Installation and Technician Appointments

For a delayed installation, missed appointment, incomplete activation, exposed line, property damage or unexpected technician charge, keep the order number, promised arrival window, text and email updates, photographs and repair-ticket number.

1. Check AT&T order and appointment history.
2. Confirm the service address and access instructions.
3. Record when the appointment window began and ended.
4. Photograph incomplete work, damage, temporary cables or unsafe conditions.
5. Before accepting another dispatch, ask whether a technician fee could apply.
6. Ask for the new appointment confirmation and the complaint or repair-ticket number.

The AT&T Guarantee includes certain callback and Fiber technician-appointment benefits for eligible customers, with restrictions and exclusions. Review the current terms and any eligibility notice before requesting a benefit.

Downed or Exposed AT&T Line

Call 1-800-288-2020 to report a downed line, exposed cable or damaged communications equipment. Do not touch, cut, move or drive over the line; it may be near electrical equipment or another hazardous utility.

Moving, Canceling and Returning AT&T Equipment

Moving AT&T Internet

Use AT&T’s moving-service process to check availability at the new address. Technology, speed and pricing can differ by location.

• Choose the old address’s disconnect date and the new address’s installation date.
• Confirm whether to move or return the existing gateway.
• Ask whether the plan, promotion, bundle or AutoPay discount changes.
• Save the move-order number and appointment details.

Canceling AT&T Internet

AT&T instructs the account owner to call 1-800-288-2020 with the account number and PIN. Cancellation requests must be handled during the cancellation department’s normal operating hours.

AT&T’s current Internet cancellation policy says service may be canceled within 14 days of activation without an early termination fee, although charges incurred through cancellation and equipment-return duties remain. If an older or other plan has a term commitment, an early termination fee may apply after 14 days. Current home-internet plans offered for sale generally do not carry a term commitment, but the customer’s own agreement controls.

• Confirm the effective cancellation date and final billing.
• Ask whether removing internet changes a wireless or bundle discount.
• Request a cancellation confirmation number.
• Download recent bills before account access changes.
• Confirm each item that must be returned and the return deadline.

Returning AT&T Internet Equipment

AT&T generally requires undamaged internet or Phone—Advanced equipment to be returned within 21 days of the service change or disconnect date to avoid a non-return fee. The required items vary by service and model.

1. Check AT&T’s current equipment-return instructions.
2. Record every model and serial number and photograph the equipment.
3. Bring the required equipment and account number to an approved UPS Store or FedEx Office.
4. Do not remove wall-mounted AT&T equipment.
5. Keep the carrier receipt and tracking until the final account balance is correct.

AT&T stores do not accept these internet equipment returns. If a non-return fee appears despite a timely return, provide the receipt, tracking, serial number and cancellation confirmation.

Home Phone, U-verse TV and AT&T Email

Home Phone or Landline Repair

Call 1-800-288-2020 to create a home-phone repair ticket. Test whether every telephone is affected, try a corded phone when available, disconnect fax machines or answering equipment temporarily and record whether the problem is no dial tone, static, dropped calls or inability to receive calls.

U-verse TV and DIRECTV

Existing U-verse TV customers can call 1-800-288-2020 or select U-verse TV on AT&T’s contact page. DIRECTV is now separate from AT&T and uses its own customer-support system. Do not use an old combined AT&T/DIRECTV number unless it appears on a current official page or bill.

AT&T Mail and Account Access

For a forgotten password, locked account, missing email or suspicious forwarding rule:

1. Reset the AT&T password through the official sign-in process.
2. Review recovery email addresses and telephone numbers.
3. Check mail-forwarding settings, filters and sent messages.
4. Remove unfamiliar third-party mail applications.
5. Use a secure mail key when required by an older email program.
6. Change passwords on other accounts if the same password was reused.

AT&T does not prominently publish one general customer-service email address for routine account help. Use telephone support, secure chat, myAT&T or a service-specific official form.

AT&T Fraud and Account Security

Call Voice and Internet Fraud at 1-877-379-2319 for an unauthorized internet or phone account or account change. Call Wireless Fraud at 1-877-844-5584 for an unauthorized mobile account or wireless account change.

Information To Gather

• The unauthorized account, service address, line or device
• The date it was discovered
• Bills, order confirmations, collection letters or credit-report entries
• Unexpected password, passcode, SIM, eSIM or contact-information changes
• An identity-theft or police-report number when applicable
• Previous AT&T fraud case numbers

Use only AT&T’s official fraud and security resources. Do not send identification or a Social Security number to an email address or upload page that has not been verified through AT&T’s official process.

Common AT&T Impersonation Claims

• Your service will be disconnected immediately
• A payment failed or a refund is waiting
• You qualify for an unusually large discount
• Your router, phone or account was hacked
• A technician needs remote access to a computer
• You must reveal a one-time code or move money

Hang up or stop replying. Open the official app or website yourself and review the account for unfamiliar orders, payments, lines, devices and contact-information changes.

How To Escalate an AT&T Complaint

1. Start with the correct service. Use Internet, home phone, Wireless, Prepaid, fraud or Business support as appropriate.
2. Request a case number. Record the date, time, representative, department and promised action.
3. Ask for supervisor review. State the evidence and exact outcome requested.
4. Create written records. Save chat transcripts, bills, screenshots, appointment notices, tracking and offer terms.
5. Confirm promises. A credit, refund or cancellation is not complete until it appears on the account or final bill.
6. Use the formal process when appropriate. Submit an official Notice of Dispute only after ordinary Customer Care has not resolved the problem.

AT&T Notice of Dispute

A Notice of Dispute is a formal escalation to AT&T’s Legal Department, not another ordinary customer-service complaint. AT&T says its Legal Department has 60 days after receiving a complete notice to investigate and try to resolve the claim.

Use AT&T’s current Notice of Dispute instructions and form. Keep a complete copy and proof of delivery. Do not rely on an old address or third-party form because the agreement and submission process can change.

FCC Complaint

The FCC Consumer Complaint Center accepts complaints about internet availability, speed, billing and equipment, as well as phone billing, coverage, number porting and related communications services. Contact AT&T first when possible and include case numbers, dates, bills and the resolution requested. An FCC complaint does not replace an urgent fraud report, equipment-return deadline or other contractual or legal deadline.

AT&T Corporate Office

AT&T Inc.
208 S. Akard Street
Dallas, TX 75202
Corporate main line: 1-210-821-4105

The corporate line is not the normal route for account service, and headquarters is not a retail store, payment center or equipment-return location. Do not send payments, gateways, devices, fraud documents or time-sensitive account records there unless AT&T specifically instructs you to do so. See the AT&T corporate office and complaints guide for corporate background and the announced future headquarters move.

AT&T Customer Reviews and Complaints

At the time of this update, the CustomerServiceNumbers.com AT&T rating module displayed 2.7 out of 5 stars based on 14 reviews. This is a limited user-submitted sample and should not be treated as a scientific or current rating of every AT&T service, technician, store or department.

The first visible reviews include older reports about a business telephone outage, replacement wireless devices, device-installment obligations and bills exceeding quoted amounts. Several concern Wireless devices or policies rather than current home-internet support. Mobile customers should use and review the dedicated AT&T Wireless page.

For a separate complaint-focused resource, visit AT&T reviews and complaints on ZeroStars. Reviews on any public site are individual reports, may not be independently verified and do not establish that every customer will have the same experience.

What To Include in an AT&T Review

• The AT&T service and department involved
• The contact route and approximate wait
• The case, repair or appointment process
• Whether a technician or equipment return was required
• Whether a promised credit appeared
• How long resolution took and the final outcome

AT&T Customer Service Frequently Asked Questions

What is the AT&T Internet customer-service number?

Call 1-800-288-2020 for Internet, Fiber, Internet Air, Wi-Fi, billing and home-phone support.

Is AT&T customer service available 24 hours?

AT&T lists its primary Wireless and Internet or home-phone numbers as available 24/7. Specialized departments, including cancellation, may have narrower live-agent hours.

What is the AT&T Wireless customer-service number?

Call 1-800-331-0500 or dial 611 from an AT&T mobile phone. See the AT&T Wireless customer service guide for device, plan, trade-in and mobile billing help.

How do I report an AT&T outage?

Use the official outage checker and sign in for details tied to the service address. Internet and home-phone customers can also call 1-800-288-2020.

Does AT&T credit customers for internet outages?

Under the AT&T Guarantee, an eligible Fiber or Internet Air customer may receive a day of service credit for a qualifying network interruption lasting 20 minutes or more. Restrictions and exclusions apply, and AT&T determines eligibility.

How do I cancel AT&T Internet?

The account owner should call 1-800-288-2020 during the cancellation department’s operating hours. Confirm the end date, final billing, equipment and cancellation number.

How long do I have to return AT&T internet equipment?

AT&T generally requires undamaged equipment within 21 days of the service change or disconnect date. Follow the email and official return instructions for the specific equipment.

How do I report an unauthorized AT&T account?

Call 1-877-379-2319 for an unauthorized internet or voice account. Call 1-877-844-5584 for an unauthorized Wireless account or account change.

Does AT&T have email customer service?

AT&T does not prominently publish one general account-support email address. Customers are directed to telephone support, chat, myAT&T or service-specific official forms.

Does AT&T still support U-verse TV?

Existing U-verse TV customers can call 1-800-288-2020 or select U-verse TV through AT&T’s contact page.

Is DIRECTV customer service handled by AT&T?

No. DIRECTV now has a separate customer-support system and should be contacted through DIRECTV.

Where is AT&T headquartered?

AT&T Inc.’s current official headquarters mailing address is 208 S. Akard Street, Dallas, TX 75202. Continue using the current published address until AT&T officially changes it.

Related Telecommunications Customer Service Pages

• AT&T Wireless customer service
• Verizon customer service
• Xfinity customer service
• Spectrum customer service

Related AT&T Consumer Resources

• AT&T corporate office, headquarters and complaints
• AT&T reviews and complaints
• AT&T COR DF charge on a card statement

Why Trust CustomerServiceNumbers.com?

CustomerServiceNumbers.com has helped consumers locate company-support information and share customer-service experiences since 2004. We are an independent consumer-help website and are not owned or operated by AT&T Inc.

We verify contact routes against official company and government sources, separate AT&T home-service and Wireless intent, and explain documentation and escalation steps. Telephone numbers, hours, policies and program terms can change, so confirm time-sensitive information with AT&T.

Share Your AT&T Customer Service Experience

Have you contacted AT&T about an internet outage, higher bill, installation, slow Wi-Fi, home-phone repair, equipment return, cancellation, fraud report or U-verse issue? Leave a rating and review below. Include the service, contact method, case or repair process, time required and whether AT&T resolved the problem.

Do not include account passcodes, passwords, Social Security numbers, complete account or payment-card numbers, equipment serial numbers or other private information.

Customer Service Information Disclaimer

CustomerServiceNumbers.com is not affiliated with AT&T Inc. AT&T does not provide customer support through this website. Contact information is provided to help consumers reach the company directly. Reviews and complaints reflect the experiences and opinions of individual contributors and should not be interpreted as statements from AT&T.