Defendant
10 cases as defendant.
Company Overview
AT&T Mobility LLC, also known as AT&T Wireless, is a wholly owned subsidiary of the publicly traded telecommunications conglomerate AT&T Inc. (NYSE: T). The company was originally formed as Cingular Wireless in April 2000, a joint venture between SBC Communications and BellSouth. Following SBC's acquisition of AT&T Corp. in 2005 and then BellSouth in 2006, Cingular was fully integrated and rebranded as AT&T Mobility in 2007. The company is headquartered in Brookhaven, Georgia, near Atlanta. As one of the largest wireless carriers in the United States, it served 109.3 million subscribers as of March 31, 2026.
Products and Services
AT&T Mobility is an operating company that provides a wide range of wireless services to consumers, businesses, and government agencies across the United States. Its core offerings include mobile telephony (voice) and wireless broadband services. The company operates a national wireless network utilizing various technologies, and also offers prepaid services under the brand AT&T Prepaid. Through its Government Solutions division, AT&T Mobility provides specialized telecommunications, mobile devices, and IT services, including cybersecurity, cloud, and IoT solutions, to federal agencies.
Patent Litigation Posture
Based on the provided data, AT&T Mobility LLC's role in patent litigation is that of an operating company defending its business. The company has been named as a defendant in one tracked case and has not been a plaintiff. This posture is typical for a large technology and telecommunications company that is frequently targeted by patent assertion entities. The single tracked case, Cyberfone Systems, LLC v. AT&T Inc. et al., was filed in the District of Delaware in 2011. This jurisdiction is a common venue for patent litigation.
Notable Cases and Context
The tracked case, Cyberfone Systems, LLC v. AT&T Inc. et al., from 2011, reflects the challenges large operating companies face from patent licensing firms. While details of this specific case are not extensively covered in the search results, the context of AT&T's litigation often involves defending against claims of infringement on telecommunications and software patents. The company's parent, AT&T Inc., is frequently involved in broader legal and regulatory matters, including cases that have reached the Supreme Court concerning corporate privacy under the Freedom of Information Act and FCC enforcement actions.
Headwater Research LLC filed a patent infringement suit against AT&T Services, Inc., AT&T Enterprises, LLC, and AT&T Mobility LLC in the Eastern District of Texas on July 11, 2025. The case status implies it was recently filed.
Headwater sued multiple wireless carriers asserting a five-patent set including the '464 patent; the case was dismissed without prejudice by joint stipulation under Rule 41(a)(1)(A)(ii), each party bearing its own costs.
This is an ongoing case filed by Novacloud Licensing LLC against multiple AT&T entities. Recent docket activity includes a scheduling order setting deadlines for discovery and motions.
Razdog Holdings LLC filed a patent infringement lawsuit against AT&T Mobility LLC and AT&T Inc. in the California Northern District Court, asserting US patent 10334068. Hon. Beth Labson Freeman is the assigned judge.
ASSIA filed a patent infringement action against multiple AT&T entities in the Eastern District of Texas, Marshall Division, asserting nine patents including US 7,593,458. The case settled before trial and was dismissed on April 14, 2025.
This case is another component of the same litigation campaign. The case is currently stayed pending the outcome of a post-grant review (PGR) proceeding initiated by Apple Inc.
Filed December 3, 2018 in E.D. Tex. Marshall Division and designated the consolidated lead case for Sol IP's December 2018 campaign. The consolidated action included Sol IP's suits against Sprint and Verizon, with Ericsson as intervenor, and the AT&T action was dismissed/closed in 2020.
Lead case in the Dec. 3, 2018 Sol IP E.D. Tex. campaign, filed in Marshall before Judge Schroeder and Magistrate Judge Payne. The consolidated caption named AT&T, Cellco/Verizon, and Sprint entities as defendants, with Ericsson and Nokia intervening; the campaign asserted 27 patents, including US 9,900,067. Closed on 2020-05-20; disposition not stated.
Patent infringement suit filed by Cyberfone Systems, LLC as part of its 2011 litigation campaign in the District of Delaware. The case is now terminated.
This case is referenced in a document from November 12, 2021.