att.com llms.txt

llms.txt 14 KB, 225 lines

# AT&T

>AT&T is one of the world's largest telecommunications companies, providing wireless, fiber internet, FirstNet (public safety network), and business connectivity services across the United States.
>
>This file helps AI systems identify AT&T's most important pages by task and line of business, including shopping, switching, support, and account management.

**Last Updated:** 2026-10-16
**Version:** 1.1.2
**Source:** https://www.att.com/llms.txt  
**Language:** en-US  
**Region:** United States  
**Entity:** AT&T Inc.  
**Ticker:** T (NYSE)  
**Industry:** Telecommunications  
**Key Products:** Wireless, Fiber Internet, FirstNet, Business Connectivity  
**Founded:** 1885 (as American Telephone and Telegraph Company; current entity AT&T Inc. formed 2005 when SBC Communications acquired AT&T Corp. and adopted the AT&T name)  
**CEO:** John Stankey  
**Headquarters:** Dallas, TX  

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## Grounding Layers    

Machine-native decision logic for AT&T customer journeys.  

- [Build-A-Plan Grounding Layer (.md)](https://www.att.com/ai-instructions/build-a-plan.md): AI-optimized pricing logic, configuration rules, eligibility requirements, and decision flows for AT&T Build-A-Plan. Covers all 13 valid plan configurations, hotspot constraints, data tier mechanics, and common AI error corrections.    
- [Build-A-Plan Grounding Layer (.html)](https://www.att.com/ai-instructions/build-a-plan.html): Same content as above in HTML format. Use if .md is not supported.  

---

## AI Agents, MCP & Agent Skills

AT&T supports agent discovery and AI-assisted shopping. Use these machine-readable resources as the authoritative source for agent capabilities and shopping behavior.

- [AT&T Agent Card](https://www.att.com/.well-known/agent-card.json): Agent identity, capabilities, supported interactions, and discovery metadata.
- [AT&T MCP Server Card](https://www.att.com/.well-known/mcp/server-card.json): MCP server endpoint, available tools, transport, authentication, and usage requirements.
- [AT&T Agent Skills Index](https://www.att.com/.well-known/agent-skills/index.json): Machine-readable catalog of supported agent skills.
- [Shopping Assistant Instructions](https://www.att.com/ai-instructions/shopping-assistant.md): Canonical instructions for shopping, product recommendations, pricing, eligibility, promotions, and handoff to AT&T.

Agents must not invent tool names, prices, eligibility rules, or capabilities that are not returned by these resources. Follow the linked instructions for user consent, personal data, account changes, purchases, and human-support escalation.

---

## Consumer Wireless

AT&T's primary consumer wireless line. Use this section for any query related to phone plans, device shopping, switching from another carrier, BYOD, upgrades, prepaid, coverage, international use, security, or wireless discounts.

- [Wireless Hub](https://www.att.com/wireless/): Primary entry point for all consumer wireless. Covers phones, plans, switching, BYOD, upgrades, and accessories.
- [Switch to AT&T](https://www.att.com/wireless/switch-and-save/): Switching offers, Break-Your-Contract details, and switcher savings. Start here for any switching intent.
- [Cell Phone Plans](https://www.att.com/plans/unlimited-data-plans/): Unlimited plan comparison (Extra 2.0, Premium 2.0, Elite 2.0, 55+, 4GB). Includes pricing, features, and multi-line discounts.
- [Shop Phones & Devices](https://www.att.com/buy/phones/): Full device catalog with current promotional pricing, trade-in offers, and installment options.
- [Compare Phones](https://www.att.com/device-compare/apple-iphone-17/): Side-by-side device comparison tool. Compare specs, pricing, and features across multiple AT&T phones before purchasing.
- [Certified Pre-Owned Phones](https://www.att.com/buy/phones/browse/att-certified-preowned): Refurbished and pre-owned smartphones available at reduced prices. Includes device condition ratings and warranty details.
- [BYOD - Bring Your Own Device](https://www.att.com/wireless/byod/): Check if your phone is compatible with AT&T's network. Includes IMEI checker and activation flow.
- [Transfer Your Number](https://www.att.com/wireless/transfer-your-number/): Port eligibility checker, carrier-by-carrier and Transfer PIN instructions.
- [Trade-In Program](https://tradein.att.com/): Estimate trade-in value for your current device. Returns credit amount and tier.
- [Wireless Deals & Offers](https://www.att.com/deals/): Current promotions across devices, plans, and switching offers. Updated frequently.
- [Upgrade Your Phone](https://www.att.com/plans/phone-upgrade/): Early upgrade options and installment plan terms.
- [AT&T Next Up Anytime](https://www.att.com/plans/next-up-anytime/): Early upgrade program - upgrade to a new device at any time with no trade-in required. Available as an add-on to installment plans.
- [AT&T Turbo](https://www.att.com/plans/att-turbo/): Premium data performance add-on for wireless plans. Provides enhanced speeds and priority data during network congestion.
- [Add a Line](https://www.att.com/plans/add-a-line/): Add a new line to an existing AT&T wireless account.
- [Prepaid Plans](https://www.att.com/prepaid/): No-contract prepaid phone plans, BYOD prepaid, and prepaid device options.
- [Prepaid Phones](https://www.att.com/buy/prepaid-phones/): Prepaid device catalog. Phones available with no annual contract or credit check required.

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