How to Serve Legal Papers on AT&T: A Comprehensive Guide

Serve AT&T / AT&T Mobility LLC — Undisputed Legal Gets It Done

Serving legal papers on AT&T is legally more complex than serving a bank — and most litigants discover that the hard way. AT&T Inc. is a Delaware-incorporated holding company headquartered in Dallas, Texas, that operates through four primary legal entities: AT&T Inc. (the parent holding company), AT&T Mobility LLC (the wireless carrier, formerly Cingular Wireless, serving all AT&T cellular subscribers including Cricket Wireless), AT&T Corp. (the New York-incorporated legacy wireline and long-distance entity), and AT&T Services, Inc. (the internal operational support entity). Each carries distinct registered agents that vary by state — and AT&T further operates through state-specific wireline subsidiaries (AT&T Texas, AT&T California, AT&T Southeast, and others) that are separate legal entities for regulatory purposes. Serving the wrong entity voids your service. Serving the right entity at the wrong address wastes your deadline. Undisputed Legal navigates AT&T’s multi-entity structure every day and serves every AT&T legal entity in every jurisdiction where AT&T operates.

AT&T is not just a large corporation — it is a federally regulated common carrier subject to FCC oversight under the Communications Act. That regulatory status makes subpoenas for AT&T subscriber records, call records, and location data legally distinct from subpoenas for bank account records. The Stored Communications Act (18 U.S.C. § 2703) creates a three-tier disclosure threshold that determines whether your subpoena, court order, or warrant is the correct instrument for the records you need. AT&T’s National Compliance Center and Subpoena Compliance Center handle records requests — but they are not registered agents and do not accept registered agent service for lawsuits, summons, or court orders. Routing a civil lawsuit to the National Compliance Center produces no valid service on any AT&T legal entity. Meanwhile, your 90-day FRCP 4(m) deadline continues running.

With 15+ years of experience serving major corporations and telecommunications carriers, 10 offices nationwide, a DCWP license for all five NYC boroughs, an A+ BBB rating, and GPS-verified affidavits accepted in every state and federal jurisdiction, Undisputed Legal is the authority on serving AT&T, AT&T Mobility LLC, AT&T Corp., and every AT&T operating entity. When telecom regulatory complexity meets litigation deadlines — and with AT&T, they always collide — trust the team that does this every day. Order service now or call (800) 774-6922.

AT&T PROCESS SERVICE PRICING & OPTIONS

Fees are automatically calculated at checkout based on the service address (county/location).

ROUTINE — $100–$150 (First attempt within 3–7 business days)
RUSH — $200–$250 (First attempt within 24–48 business hours)
SAME-DAY — $250–$300 (First attempt the same business day when documents are received during normal business hours)
EMAIL/MAIL — $75 (Where permitted; completed within 24–48 business hours from time of receipt)
STAKE-OUT — $325–$425 (Includes 1 hour waiting time; each additional hour $100–$150)

Includes 3 attempts (morning/afternoon/evening) + notarized Affidavit of Service/Due Diligence.
Additional individuals: 50% off (same address/same order).
Place Order Online

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Critical Deadlines: When AT&T Service Goes Wrong, Cases Get Dismissed

Defective service on AT&T is not a correctable inconvenience — it is a case-ending event that AT&T's legal team engineers from the first failed attempt. Under FRCP 4(h)(1)(A), service on a corporation requires delivery to an officer, managing agent, or registered agent specifically designated to accept process. AT&T's National Compliance Center (Dallas) processes law enforcement and subpoena record requests — it is not a registered agent and does not accept registered agent service for civil lawsuits, summons, TROs, or garnishment orders. AT&T's Subpoena Compliance Center (North Palm Beach, Florida) handles wireline record subpoenas. Routing a civil lawsuit to either compliance center produces no valid service on any AT&T entity. The case clock keeps running while AT&T's legal team prepares its motion to dismiss.

Real consequences of defective AT&T service: Under FRCP 4(m), federal plaintiffs have 90 days from filing to complete valid service on the correct entity. CPLR 306-b gives New York litigants 120 days. These deadlines run against the correct entity — not against "AT&T" as an abstraction. If you serve AT&T Inc. for a wireless subscriber dispute that belongs to AT&T Mobility LLC, your service is void against the entity you actually need to reach. AT&T's institutional defense counsel identifies entity mismatches from the caption before filing a responsive pleading — and moves to dismiss under FRCP 12(b)(5) before the court has a scheduling order in place. Beyond entity errors, subpoenas for AT&T subscriber records and call detail records face compliance thresholds under the Stored Communications Act that are more restrictive than the RFPA requirements for bank records. AT&T's legal team rejects non-compliant subpoenas on SCA grounds — and is legally entitled to do so.

AT&T operates one of the most sophisticated legal intake systems of any corporation in the United States. It processes tens of thousands of legal demands annually — from civil subpoenas to law enforcement orders to class action service — and its compliance team has documented procedures for identifying and challenging every category of defective service. Litigants who serve AT&T without professional guidance provide that team with the procedural opening it needs to delay, dismiss, or block their case. Don't risk it. Order professional service now.

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Our Process — GPS-Verified, Court-Ready Service on AT&T

When you trust Undisputed Legal to serve AT&T or any AT&T entity, here is exactly how we deliver precision at every step — including the telecom-specific compliance checks that prevent the objections AT&T raises most frequently:

Step 1: Document Intake and Entity Identification
We receive your summons, subpoena, court order, or legal document via secure upload, email, or physical delivery. Our legal team reviews for completeness and immediately cross-references your caption against AT&T's corporate structure. A wireless subscriber dispute belongs to AT&T Mobility LLC. A legacy wireline or long-distance matter may belong to AT&T Corp. (a New York corporation, distinct from AT&T Inc.). An enterprise, business wireline, or fiber dispute belongs to AT&T Services, Inc. or an AT&T state operating company. A claim against the holding company itself belongs to AT&T Inc. We flag entity mismatches at intake — before your deadline begins burning against the wrong respondent.

Step 2: Registered Agent Verification
AT&T entities use CT Corporation System as the primary registered agent in most states — but registered agent addresses and designations vary by entity, state, and current corporate filings. We verify the current registered agent through Secretary of State records in your forum state before dispatching any process server. A registered agent address that was accurate two years ago may have been updated in current state filings. Undisputed Legal confirms currency before every service at no additional charge.

Step 3: SCA and CPNI Compliance Check for Record Subpoenas
For subpoenas seeking AT&T subscriber records, call detail records, or location data, we review your document against the Stored Communications Act (18 U.S.C. § 2703) compliance thresholds before service. Basic subscriber information (name, address, billing records) requires a subpoena. Call detail records and stored content older than 180 days typically require a court order or warrant under the SCA framework. Real-time cell site location information and GPS tracking data require a warrant under the Supreme Court's holding in Carpenter v. United States (2018). We identify compliance gaps at intake so AT&T receives a legally sufficient instrument it cannot reject on SCA or CPNI grounds.

Step 4: NCC vs. Registered Agent Routing Decision
AT&T's National Compliance Center (wireless) and Subpoena Compliance Center (wireline) process law enforcement and civil record subpoenas. They are not registered agents and do not accept process for civil lawsuits, summons, TROs, levies, or garnishments. If your matter requires registered agent service — any civil action against AT&T as a named defendant — we route to the registered agent. If your matter is a records subpoena routed to a compliance center, we confirm the correct center (NCC for wireless; SCC for wireline/DSL) and the appropriate submission method before dispatch. Getting this routing decision wrong is the most common failure in AT&T service.

Step 5: Licensed Process Server Dispatch
Our background-checked, state-licensed process server is dispatched to the confirmed address. In New York City's five boroughs, our servers operate under DCWP License #1420758-DCA. Nationwide, our network includes former law enforcement officers, licensed private investigators, and certified legal professionals who understand CT Corporation's acceptance protocols for national telecommunications carriers. AT&T's registered agent offices require delivery to authorized personnel — our servers execute without incident.

Step 6: GPS-Verified Service Attempt
Every service attempt is GPS-verified and time-stamped using professional legal software generating court-defensible location and time records. Our servers photograph the registered agent's office, document the manner of delivery, and record the authorized recipient's name and title. If service is refused or the registered agent is unavailable, we document the refusal with GPS-verified records and advise immediately on alternative methods — including Secretary of State substitute service where available under controlling state statute.

Step 7: Court-Ready Affidavit and Delivery
Our legal team prepares state-specific affidavits citing the precise controlling statute — "Service made pursuant to Tex. Bus. Orgs. Code § 5.251" for Texas; "pursuant to CPLR 311(a)(1) and BCL 306" for New York; "pursuant to FRCP 4(h)(1)(A)" for federal matters. The affidavit includes date, time, GPS-verified location, the authorized recipient's identity, and the server's sworn declaration. You receive the notarized affidavit by email within hours of completed service. Where required, we e-file proof of service with CM/ECF (PACER) or NYSCEF. If AT&T challenges our service, our servers testify at no additional cost.

Ready to serve AT&T with precision that holds in court? Order service now or call (800) 774-6922 — deadlines don't wait.

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Types of Legal Papers We Serve on AT&T

Undisputed Legal serves every category of legal document on AT&T and its operating entities. Whether your matter involves a consumer wireless dispute, a commercial wireline contract claim, a regulatory enforcement action, or a telecom-specific records subpoena governed by the Stored Communications Act, our process servers handle complex telecommunications carrier service every day.

• Summons & Complaints — Consumer wireless disputes and TCPA class actions against AT&T Mobility LLC; wireline and broadband service claims against AT&T Corp. and state operating companies; commercial enterprise agreement disputes against AT&T Services, Inc.; FCRA and consumer protection actions; employment and whistleblower litigation; shareholder and securities enforcement against AT&T Inc.
• Subscriber Record Subpoenas (SCA-Compliant) — Basic subscriber information subpoenas (name, address, service dates, billing records) under the SCA's lowest threshold; call detail record subpoenas requiring court order or warrant depending on content and age; tower and cell site location information (CSLI) requiring warrant under Carpenter v. United States (2018); Cricket Wireless subscriber subpoenas (routed to AT&T Mobility LLC)
• Court Orders & Writs — Temporary restraining orders and preliminary injunctions directed to AT&T accounts or services; writs of garnishment against AT&T accounts receivable; court orders for real-time pen register and trap-and-trace (requiring specific judicial authorization); asset freeze orders in commercial and post-judgment proceedings
• Post-Judgment Collection — Garnishment orders and information subpoenas directed to AT&T as employer or account holder; restraining notices; debtor examinations requiring corporate representative attendance
• Regulatory & Government Service — FCC enforcement actions and consent decrees directed to AT&T Inc.; FTC and DOJ antitrust enforcement; state PUC regulatory orders served on AT&T state operating companies; NLRB proceedings involving AT&T employees; congressional subpoenas directed to AT&T's federal affairs division in Washington DC
• International & Hague Service — Service on AT&T international entities and Latin American operating companies under the Hague Service Convention and letters rogatory in 120+ countries where AT&T maintains international operations or network partnerships

From routine wireless subscriber subpoenas to complex FCC regulatory enforcement, we serve AT&T with the same urgency and precision regardless of document type or jurisdiction. Request service now.

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Why Serving AT&T Requires a Professional

AT&T is not structured like a bank. Its legal complexity comes from a different source: a century of mergers, regulatory mandates, and court-ordered restructurings that created a corporate family where the entity that owns your wireless account, the entity that provides your fiber service, and the entity that holds AT&T's long-distance licenses are three legally distinct corporations. Here is what goes wrong when litigants attempt AT&T service without professional support:

Compliance Center Routing for Lawsuits — The #1 AT&T Service Error:
AT&T's National Compliance Center (for wireless subscriber record requests) and Subpoena Compliance Center (for wireline record requests) are not registered agents and do not accept service of civil process. Routing a summons and complaint, a TRO, or a writ of garnishment to either compliance center produces no valid service on any AT&T legal entity. AT&T's compliance team will process the papers as a records request — acknowledging nothing about the lawsuit — while your 90-day FRCP 4(m) service window burns down. By the time the litigant realizes the error, the service deadline may have passed and a motion to dismiss is already drafted.

Entity Maze — Four Entities Plus State Operating Companies:
AT&T Inc. (Delaware, Dallas) is the holding company. AT&T Mobility LLC (the wireless carrier) is the entity for all cellular, text, and data disputes — including Cricket Wireless, which is a prepaid brand of AT&T Mobility and not a separate legal entity for service purposes. AT&T Corp. is a New York corporation — the legacy long-distance entity — still named as a defendant in older contract disputes and wireline matters. State operating companies (AT&T Texas, AT&T California, AT&T Southeast, AT&T Midwest) are separate regulated entities for state PUC purposes with their own registered agent designations. Serving AT&T Inc. for a dispute that belongs to AT&T Mobility LLC — even though they share a brand name, a Dallas headquarters, and many of the same officers — is void service on the wireless entity your case is actually against.

WarnerMedia Is No Longer AT&T:
AT&T completed the spinoff of WarnerMedia on April 8, 2022. HBO, HBO Max, CNN, Warner Bros., TNT, TBS, Cartoon Network, and DC Entertainment are now assets of Warner Bros. Discovery — a separate publicly traded company that has no corporate relationship to AT&T Inc. If your matter involves HBO, CNN, or Warner Bros. content, licensing, or employment, AT&T is not the correct defendant and service on AT&T registered agents produces no valid service on any Warner Bros. Discovery entity. Undisputed Legal corrects this entity identification error before your summons goes anywhere.

SCA and CPNI Compliance — Stricter Than Bank Subpoenas:
Subpoenas for AT&T call records, subscriber data, and location information face compliance thresholds under the Stored Communications Act (18 U.S.C. § 2703) and AT&T's CPNI obligations under 47 U.S.C. § 222 that are more restrictive than the RFPA framework applicable to bank account records. AT&T's legal team reviews every incoming record subpoena for SCA and CPNI compliance and objects to non-compliant demands before producing any records. A subpoena that uses the right statute but requests the wrong tier of records — asking for content records with a subpoena when a court order or warrant is required — is rejected outright. Undisputed Legal reviews your subpoena for SCA and CPNI compliance at intake, before service, so AT&T receives an instrument it cannot legally refuse.

With GPS-verified affidavits, DCWP licensing for all five NYC boroughs, SCA compliance review, and decades of experience serving telecommunications carriers and major corporations, Undisputed Legal eliminates every one of these risks. Order service now — your case depends on getting this right the first time.

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Where to Serve Legal Papers on AT&T

AT&T entities maintain registered agents in all 50 states and the District of Columbia, with CT Corporation System designated as the primary agent for most AT&T Inc. and AT&T Mobility LLC registrations. Registered agent addresses and designations vary by entity and state. Here is the controlling information for the seven jurisdictions where AT&T service arises most frequently — with the key distinction between registered agent service and compliance center routing spelled out where it matters most.

Texas — AT&T's Home Jurisdiction:
CT Corporation System
1999 Bryan Street, Suite 900
Dallas, TX 75201
AT&T Inc. is headquartered in Dallas, Texas, making Texas the primary jurisdiction for holding company litigation and the most common venue for AT&T-related federal actions in the Northern District of Texas. Under Tex. Bus. Orgs. Code § 5.251, service on a foreign entity registered in Texas may be made by personal delivery or certified mail to the registered agent. CT Corporation System at 1999 Bryan Street is the designated agent for AT&T Inc. and AT&T Mobility LLC in Texas. Separately, AT&T Mobility LLC's National Compliance Center is located at 208 S. Akard Street, Dallas, TX 75202 — this address handles wireless subscriber record subpoenas only and is not a registered agent address for civil process service on lawsuits, TROs, or court orders.

California — Largest AT&T Subscriber Market:
CT Corporation System
330 N. Brand Boulevard, Suite 700
Glendale, CA 91203
California is AT&T's largest subscriber state for both wireless (AT&T Mobility LLC) and wireline services (AT&T California / Pacific Bell, an AT&T state operating company). California Code of Civil Procedure § 416.10 governs service on corporations by delivery to the designated agent for service of process. CT Corporation System at the Glendale address is the designated agent for AT&T Inc. and its affiliates registered in California. California generates high AT&T litigation volume under the TCPA, California's Rosenthal Act, and the California Consumer Privacy Act (CCPA). Confirm current agent designation with the California Secretary of State before dispatch for state operating company matters, as AT&T California may designate a separate agent.

New York — AT&T Corp.'s Home State and Commercial Hub:
CT Corporation System
28 Liberty Street
New York, NY 10005
AT&T Corp. — the legacy wireline, long-distance, and network services entity — is incorporated in New York, making New York the most legally significant state for AT&T Corp.-specific service. Under CPLR 311(a)(1) and BCL 306, domestic and foreign corporations must accept service on their registered agent. CT Corporation System at 28 Liberty Street is the designated agent for AT&T Corp. and AT&T Inc. in New York. Personal delivery is required under CPLR 311; certified mail alone does not satisfy New York corporate service requirements. New York also generates high AT&T commercial enterprise and class action litigation in the Southern and Eastern Districts of New York.

Florida — Wireline Compliance Center Jurisdiction and High-Volume Market:
CT Corporation System
1200 South Pine Island Road
Plantation, FL 33324
Florida Statute § 48.081 requires personal service on the registered agent during normal business hours at the registered office address on file with the Florida Department of State. CT Corporation System in Plantation is the designated registered agent for AT&T entities in Florida for civil lawsuits and court orders. Note separately that AT&T Communications' Subpoena Compliance Center — which handles wireline, DSL, and U-verse record subpoenas — is located at 11760 US Highway 1, Suite 600, North Palm Beach, FL 33408; this is a records compliance address, not a registered agent address for civil process. Florida generates significant AT&T litigation volume from consumer wireless and DirecTV-related disputes and post-judgment proceedings.

Illinois — Major Commercial and Wireline Market:
CT Corporation System
208 South LaSalle Street, Suite 814
Chicago, IL 60604
735 ILCS 5/2-204 governs service on corporations in Illinois state court, permitting service on the registered agent or any corporate officer found within the state. CT Corporation System at the LaSalle Street address is the designated agent for AT&T entities registered in Illinois. Federal matters in the Northern District of Illinois follow FRCP 4(h)(1)(A). AT&T's Midwest wireline operating company serves Illinois, Indiana, Michigan, Wisconsin, and Ohio — state PUC-regulated entity matters in Illinois may require service on the Illinois state operating company rather than the parent AT&T Inc. Undisputed Legal confirms the correct entity for Illinois regulatory matters before dispatch.

Georgia — AT&T Southeast Footprint and Mobility Operations:
CT Corporation System
289 S. Culver Street
Lawrenceville, GA 30046
O.C.G.A. § 9-11-4(e)(1) governs service on domestic and foreign corporations in Georgia state court, permitting delivery to the registered agent or any officer of the corporation found within the state. CT Corporation System at the Lawrenceville address is the designated agent for AT&T entities registered in Georgia. AT&T Southeast — the wireline operating company serving Georgia, Florida, Tennessee, South Carolina, North Carolina, and other southeastern states — is a distinct regulatory entity. AT&T Mobility LLC has significant operational presence in the Atlanta metropolitan area. Federal matters in the Northern District of Georgia follow FRCP 4(h)(1)(A).

Washington DC — Federal Regulatory Hub:
CT Corporation System
1015 15th Street NW, Suite 1000
Washington, DC 20005
D.C. Code § 13-334 governs service on corporations in DC courts, permitting delivery to any officer, director, managing agent, or designated registered agent. For AT&T entities registered to do business in the District of Columbia, CT Corporation System at the 15th Street address is the designated agent. Washington DC is the critical jurisdiction for FCC enforcement actions, congressional investigations, DOJ antitrust proceedings, and federal regulatory matters directed at AT&T as a federally regulated common carrier. Federal proceedings in the US District Court for the District of Columbia follow FRCP 4(h)(1)(A). AT&T maintains significant federal government affairs and lobbying operations in DC that are separate from its legal registered agent designation.

Critical Warning: AT&T registered agent designations change with corporate restructurings, state operating company reorganizations, and registered agent office consolidations. CT Corporation System periodically updates registered office locations across multiple states. Undisputed Legal verifies every registered agent address against current Secretary of State records before dispatching any process server. Order professional service now to avoid address errors that void your service.

Attorney consultation is recommended before selecting a service method in any jurisdiction where the governing statute, court rules, or entity-specific requirements are in question.

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Understanding AT&T's Corporate Structure: Which Entity to Serve

AT&T's corporate structure reflects more than a century of mergers, court-ordered breakups, regulatory mandates, and strategic restructurings — including the 1984 Bell System divestiture, the 2005 SBC/AT&T merger, the 2006 BellSouth acquisition, and the 2022 WarnerMedia spinoff. The result is a holding company with multiple distinct legal entities that require separate service depending on the nature of your matter.

AT&T Inc. (Parent Holding Company):
The Delaware-incorporated Fortune 10 company headquartered at 208 S. Akard Street, Dallas, Texas. AT&T Inc. is the correct defendant in shareholder litigation, SEC enforcement actions involving AT&T's publicly traded securities, cases challenging board-level corporate decisions, and FCC regulatory proceedings directed at the consolidated entity. It is not the correct defendant for consumer wireless disputes, wireline service claims, or most commercial contracts — those belong to the operating entities. Registered agent: CT Corporation System in all states.

AT&T Mobility LLC (Wireless Carrier):
The wireless operating entity — formerly Cingular Wireless LLC after SBC's acquisition of AT&T Wireless — that provides all AT&T cellular, data, and wireless services. AT&T Mobility LLC is the correct entity for TCPA class actions involving wireless calls or texts, wireless subscriber record subpoenas, consumer wireless contract disputes, Cricket Wireless matters (Cricket is a prepaid brand of AT&T Mobility, not a separate entity for service purposes), and garnishments involving wireless account credits or refunds. AT&T Mobility's National Compliance Center processes law enforcement and civil record demands — it does not accept registered agent service for civil lawsuits.

AT&T Corp. (Legacy Wireline Entity):
A New York corporation — the successor to the original American Telephone and Telegraph Company — that holds AT&T's legacy long-distance network, interstate wireline services, and certain enterprise wireline contracts. AT&T Corp. is the correct entity for claims arising from legacy long-distance agreements, certain interstate wireline contracts, and matters that trace to pre-2005 AT&T operations. Its New York incorporation makes it a domestic corporation in New York courts (served under CPLR 311(a)(1)) and a foreign corporation elsewhere.

AT&T State Operating Companies:
AT&T provides local wireline, DSL, and fiber services through separate state-regulated operating companies: Southwestern Bell Telephone Company (AT&T Texas), Pacific Bell Telephone Company (AT&T California), Indiana Bell Telephone Company, Nevada Bell Telephone Company, and the consolidated AT&T Southeast, AT&T Midwest, and AT&T Southwest entities. For state PUC regulatory proceedings and some consumer wireline disputes, the correct defendant may be the state operating company rather than AT&T Inc. or AT&T Corp. Undisputed Legal confirms the correct entity for state operating company matters before every service.

Divested Entities — Not AT&T:
AT&T completed the spinoff of WarnerMedia on April 8, 2022; HBO, CNN, Warner Bros., TNT, TBS, and DC Entertainment are now assets of Warner Bros. Discovery — a company with no corporate relationship to AT&T Inc. AT&T also completed the sale of a majority stake in DirecTV to private equity in 2021 and has continued divesting its remaining DirecTV interest. For matters involving these former AT&T assets, service on AT&T registered agents produces no valid service on any Warner Bros. Discovery or DirecTV entity.

Attorney consultation is strongly recommended before finalizing which AT&T entity to name in your legal action. Undisputed Legal confirms the correct entity and registered agent before every service at no additional charge. Order service with entity verification now.

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Compliance & Legal Framework for AT&T Service

Serving AT&T and subpoenaing AT&T records involves a compliance framework that is more complex than banking law — because telecom carriers are regulated under both the Communications Act and the Electronic Communications Privacy Act, which impose tiered disclosure thresholds that banks do not face. Understanding this framework is essential to ensuring your service is valid and your subpoena is compliant before AT&T's legal team reviews it.

FRCP 4(h) — Federal Corporate Service Standard:
Under Federal Rule of Civil Procedure 4(h)(1)(A), service on a corporation in a federal action requires delivery to "an officer, a managing or general agent, or any other agent authorized by appointment or by law to receive service of process." For AT&T entities, this means the registered agent designated in the applicable state — not AT&T's compliance centers, retail stores, or corporate officers who have not been specifically designated. The registered agent is the only legally valid service point for civil lawsuits, summons, TROs, and garnishments directed at any AT&T entity in federal court proceedings.

Stored Communications Act (18 U.S.C. § 2703) — Three-Tier Framework:
The SCA creates three distinct legal thresholds for AT&T record disclosure that differ by record type and age. First tier: basic subscriber information (name, address, local and long distance telephone connection records, session times, service types, and payment method) — obtainable by subpoena. Second tier: call detail records, stored electronic communications, and account contents older than 180 days — require at minimum a court order supported by specific and articulable facts showing reasonable grounds to believe the records are relevant and material to an ongoing investigation. Third tier: stored content less than 180 days old and real-time interception — require a warrant supported by probable cause. Subpoenas that seek second- or third-tier records without the required court order or warrant will be rejected by AT&T's compliance team on SCA grounds — a legally mandated refusal AT&T is entitled to make regardless of your litigation urgency.

CPNI Obligations — 47 U.S.C. § 222 and 47 C.F.R. Part 64:
Section 222 of the Communications Act (47 U.S.C. § 222) requires AT&T to protect Customer Proprietary Network Information — the detailed call records, network usage data, and service information generated by subscriber use of AT&T's network. AT&T's CPNI obligations, implemented through FCC rules at 47 C.F.R. Part 64, restrict disclosure of call detail records and network usage data beyond what the SCA alone would require. Civil subpoenas for AT&T call records in divorce asset discovery, personal injury, and commercial litigation face both SCA and CPNI objections if the subpoena does not specifically authorize disclosure under an applicable exception. Courts must specifically authorize CPNI disclosure; a general subpoena duces tecum for "any and all records" does not satisfy AT&T's CPNI compliance obligations.

Cell Site Location Information — Warrant Required After Carpenter:
The Supreme Court's decision in Carpenter v. United States, 585 U.S. 296 (2018), held that law enforcement must obtain a warrant to access historical cell site location information (CSLI) — the tower data that tracks a subscriber's physical location over time. While Carpenter was decided in the criminal context, AT&T applies its holding in civil proceedings as well: subpoenas for historical CSLI and real-time location tracking data require a court order with specific findings or a warrant-equivalent authorization, not merely a civil subpoena. Undisputed Legal identifies location data requests at intake and advises on the correct legal instrument before your subpoena is served on AT&T's compliance team.

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Frequently Asked Questions About Serving AT&T

Which AT&T entity should I serve for a wireless dispute?

For any dispute involving AT&T wireless service — cellular accounts, data plans, text messaging, Cricket Wireless prepaid service, or TCPA violations arising from AT&T wireless calls or texts — the correct entity is AT&T Mobility LLC. AT&T Mobility is the wireless operating entity for all AT&T cellular customers. Serving AT&T Inc. (the holding company) for a wireless subscriber dispute names the wrong legal entity and gives AT&T grounds for a motion to dismiss. Undisputed Legal confirms the correct AT&T entity at no additional charge before every service.

What is AT&T's National Compliance Center and can I serve civil process there?

AT&T's National Compliance Center (NCC) at 208 S. Akard Street, Dallas, TX 75202 is AT&T Mobility's law enforcement and subpoena record processing unit. It handles civil and criminal record subpoenas for wireless subscriber information, call detail records, and location data. It is not a registered agent and cannot accept service of process for civil lawsuits, summons, TROs, or garnishments. Routing civil process to the NCC produces no valid service on AT&T Mobility LLC. Lawsuits must go to AT&T Mobility's registered agent — CT Corporation System at the state-specific address in your forum state.

How long does it take to serve AT&T?

Routine service on an AT&T registered agent delivers a first attempt within 3–7 business days from confirmed document receipt and entity verification. Rush service delivers a first attempt within 24–48 business hours. Same-day service ensures a first attempt the same business day your documents arrive during normal business hours. Timeline begins after we confirm the correct AT&T entity and current registered agent address — our standard pre-dispatch verification that prevents the entity mismatch errors that cause most AT&T service failures. Order rush or same-day service now.

Does AT&T still own HBO, CNN, and Warner Bros.?

No. AT&T completed the spinoff of WarnerMedia on April 8, 2022. HBO, Max, CNN, Warner Bros. Entertainment, TNT, TBS, Cartoon Network, and all other former WarnerMedia assets are now owned by Warner Bros. Discovery — a separate publicly traded company. AT&T has no ownership or corporate control over any of these entities. Service on AT&T registered agents for matters involving HBO, CNN, or Warner Bros. content, licensing, or employment produces no valid service on any Warner Bros. Discovery entity. Confirm the correct defendant before initiating service on any media or content-related matter.

Do I need a warrant to subpoena AT&T location data?

Yes, for historical cell site location information (CSLI). The Supreme Court held in Carpenter v. United States (2018) that accessing historical CSLI requires a warrant — a standard AT&T applies in civil proceedings as well as criminal ones. A civil subpoena alone is insufficient for tower records and location tracking data. For real-time location monitoring, a pen register or court order is required under the Electronic Communications Privacy Act. Undisputed Legal reviews your AT&T record subpoena for SCA and CPNI compliance at intake before service, so AT&T receives a legally sufficient instrument it cannot reject.

How much does it cost to serve AT&T?

Routine service starts at $100–$150 (first attempt within 3–7 business days). Rush service is $200–$250 (24–48 hours). Same-day is $250–$300. Stake-out for named AT&T officers or employees is $325–$425 including one hour of waiting time, with each additional hour at $100–$150. All service includes GPS-verified records and a notarized, court-ready affidavit. Fees are calculated at checkout based on service address location. Place your order now.

Do you serve AT&T in all 50 states?

Yes. Undisputed Legal covers all 50 states, Washington D.C., Puerto Rico, and U.S. territories, with same-day and rush service available in all major metropolitan areas where AT&T maintains registered agents. We handle UIDDA domestication for cross-state subpoenas, SCA and CPNI compliance review at intake, Hague Service Convention procedures for AT&T international entities in 120+ countries, and state operating company entity verification for AT&T's wireline regulatory subsidiaries. Order nationwide service now.

What proof of service do I receive after serving AT&T?

After service, you receive a notarized Affidavit of Service documenting the AT&T entity served, the registered agent's name and address, the date and time of service, GPS-verified location, the manner of delivery, the authorized recipient's name and title, and the process server's sworn declaration citing the applicable service statute. The affidavit is court-ready for filing in any state or federal jurisdiction and is formatted to satisfy both state civil procedure rules and FRCP proof-of-service requirements. If AT&T challenges service validity, our servers provide live testimony at no additional cost.

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Ready to Serve AT&T? Order Now

Every day you wait is a day burned against your deadline. Under FRCP 4(m), you have 90 days from filing to complete valid service on the correct AT&T entity. Under CPLR 306-b, New York litigants have 120 days. Those clocks are running right now — and AT&T's legal team, which processes tens of thousands of legal demands annually across its operating entities, is prepared to challenge every defect from entity misidentification to compliance center misrouting to outdated registered agent addresses. AT&T Inc., AT&T Mobility LLC, AT&T Corp., and AT&T's state operating companies are legally distinct entities with separate registered agents and separate service protocols. AT&T's National Compliance Center and Subpoena Compliance Center are not registered agents — they cannot accept civil process, and routing a lawsuit to either center produces no valid service while your deadline expires. AT&T no longer owns WarnerMedia, HBO, or DirecTV — service on AT&T registered agents for former AT&T entities reaches no one. And AT&T subscriber record subpoenas face three-tier SCA thresholds and CPNI obligations that are more legally demanding than anything in banking law. Every one of these failure points is an opportunity for AT&T's institutional defense team to move against your case before it gets started.

Undisputed Legal has served AT&T entities for attorneys, government agencies, and individual litigants across the country. Every service we complete is GPS-verified, documented from first attempt through delivery, and backed by a notarized court-ready affidavit citing the precise entity and statute under which service was made. We identify the correct AT&T entity before your papers leave our office. We verify the current registered agent address through Secretary of State records before dispatch. We review your record subpoenas for SCA and CPNI compliance before they reach AT&T's compliance team. And if AT&T challenges our service at any level of review, our servers testify at no additional cost — because we stand behind every service we complete.

Order Service Online — Upload your documents and we begin immediately.
Call (800) 774-6922 — Speak with our team for rush, same-day, or regulatory service.
Email [email protected] — Send documents and we confirm entity and routing within the hour.

Don't let entity confusion or compliance gaps destroy your case against AT&T. Hire the professionals who do this every day.

WHAT OUR CLIENTS ARE SAYING

Ready to Serve AT&T? Order Now

Every day you wait is a day closer to a missed deadline. Statutes of limitations run. Discovery windows close. AT&T's legal team is already prepared — are you?

Order Service Online — Upload your documents and we begin immediately.
Call (800) 774-6922 — Speak with our team for rush or same-day service.
Email [email protected] — Send documents and we confirm within the hour.

Don't let improper service destroy your case against AT&T. Hire the professionals who do this every day.

Professional Credentials & Affiliations

Undisputed Legal Inc. maintains active membership and affiliations with the following professional organizations: National Association of Professional Process Servers (NAPPS), United States Process Servers Association (USPSA), National Association of Legal Support Professionals (NAOSP), Better Business Bureau (BBB) A+ Rating, New York State Unified Court System, DCWP Licensed Process Server (NYC), International Association of Professional Process Servers, National Notary Association, American Bar Association (ABA) - Allied Member, New York County Lawyers Association, Brooklyn Bar Association, Queens County Bar Association, Bronx County Bar Association, Staten Island Bar Association, Westchester County Bar Association, and Nassau County Bar Association.

Corporate Process Service Resources

Undisputed Legal is the authority in corporate process service. Explore our expertise:

• Complex Corporate Process Service — Advanced Legal Strategies
• How to Serve Business Entities — Corporate Process Service
• Corporate Process Service for Business Entities
• Registered Agents & Process Service — What Businesses Must Know
• Serving Legal Papers at CT Corporation — Step-by-Step Guide
• How to Serve Legal Papers at CT Corporation
• Understanding Registered Agents for Service of Process
• The Model Registered Agents Act and Service of Process
• National Conference of Commissioners on Uniform State Laws
• Corporate Process Service: Registered Agent Requirements
• Corporate Process Service: A Complete Guide
• Corporate Process Service Laws: Requirements & Compliance
• Complex Corporate Process Service Solutions
• Corporate Process Service: E-Service Requirements & Solutions
• Why Serve Legal Papers Through the New York Secretary of State
• How to Serve Legal Papers on the Delaware Secretary of State
• How to Serve Legal Papers on the New Jersey Secretary of State
• Process Service Rules & Laws: Serving Secretary of State
• New York State Process Server Regulations, Compliance & Liability

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