For five years, AT&T has moved away from DSL and copper phone lines. That shift makes sense on paper. Copper networks are old, costly to maintain, and slower than fiber. But the problem is not the death of old technology. The problem is what happens when companies shut down old systems without building reliable replacements.
Many customers lost more than DSL service. They lost their landlines. In many cases, they had no real alternative.
This issue hits rural and older Americans the hardest. Many depend on traditional landlines for dependable 911 access. Some live in areas with weak cellular coverage. Others find wireless service too costly on fixed incomes. Yet these concerns often receive little attention in policy debates about “modernization.”
AT&T’s history adds another layer to the conflict. For decades, the company received tax breaks, subsidies, merger approvals, and regulatory support tied to promises of network upgrades. Critics argue that some promised improvements never arrived, stalled out, or failed to reach many communities. That record shapes the current fight.
California, AT&T, and the Future of Universal Service
At the center of the dispute sits the idea of Carrier of Last Resort, or COLR. These rules require a phone company to provide landline service to anyone in its service area. In 20 of the 21 states where AT&T operates, lawmakers removed those obligations after lobbying campaigns framed them as outdated barriers to progress.
California stands apart.
In 2024, the California Public Utilities Commission, or CPUC, told AT&T it could not simply walk away from copper customers without a stronger transition plan. The agency did not ban copper retirement. Instead, it pushed for investment in modern infrastructure, especially fiber, rather than moving customers to wireless service that may cost more or work less well.
AT&T responded with a lawsuit against California and the CPUC. The company also asked the Federal Communications Commission to step in.
AT&T argues that California blocks innovation by clinging to old rules. The company says most states and federal regulators already cleared the way for retiring plain old telephone service, or POTS, networks. In its view, California stands alone against technological progress.
The CPUC sees the issue differently. Regulators argue they want to prevent customers from being pushed from reliable landlines onto weaker or pricier wireless options. They also question whether a company that benefited from decades of public support should exit communities without building durable replacements.
Yet this fight extends beyond copper wires.
Oversight, Monopoly, and the Future of California’s Utilities
California regulators have taken a larger role in broadband oversight as federal consumer protections weakened. The CPUC has attached affordability rules to grants, applied conditions to telecom mergers, and strengthened public safety standards tied to wildfire and climate risks. Telecom companies, including AT&T, resist that level of oversight.
At the same time, political efforts now aim to change how the CPUC operates. Proposed amendments to the California constitution would reduce the agency’s independence. Supporters present the changes as a way to address rising utility costs. Critics see another motive: giving elected officials, and the lobbyists who influence them, more control over the regulator’s structure and direction.
The timing matters. These proposals emerged as AT&T presses legal attacks against the CPUC. That overlap raises questions about whether the broader goal involves more than landline policy.
The public story will likely sound familiar. Regulators will appear as obstacles to innovation. Companies will frame oversight as red tape. Voters will hear promises of modernization, efficiency, and market freedom.
Missing from that story is a harder question: what happens when market competition barely exists?
Much of the American broadband market remains concentrated. In many areas, customers face one or two serious choices for internet access. That reality weakens the argument that competition alone protects consumers. Without strong rivals, companies face less pressure to lower prices, improve service, or expand infrastructure into less profitable regions.
The debate over AT&T and California is not only about copper lines. It is about who carries responsibility when essential communications systems change. Should companies decide the pace and shape of that transition on their own? Or should regulators insist that modernization includes affordability, reliability, and access for people with few options?
That question will outlast DSL, copper, and perhaps even the current lawsuit.




