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For years, enterprises with operations in certain states could quietly count on one thing: state regulators would slow the copper shutdown even as federal policy accelerated it. Carrier of last resort rules, right of way requirements, and state approval processes acted as a brake on how fast the legacy network could actually disappear.
In the span of about eight weeks, that brake has visibly failed. AT&T sued California to escape its obligation to keep offering traditional landline service, took the same fight to the FCC through a formal preemption petition, and asked the Commission to retire copper in hundreds of additional locations. The FCC, for its part, proposed rules that would put state and local governments on a shot clock for approving modern wireline infrastructure, and in early July it began approving AT&T’s copper retirement plans in California itself. Different venues, same direction: the legal protections keeping copper alive are being dismantled at the federal and state level simultaneously.
AT&T Takes California to Court, and to the FCC
In May 2026, AT&T filed a federal lawsuit against California challenging the state’s carrier of last resort requirement, the rule that obligates the company to keep providing traditional copper based phone service across its California territory (Reuters, May 20, 2026, and Ars Technica, May 21, 2026, both covered the filing).
The context matters. The California Public Utilities Commission rejected AT&T’s application to withdraw from its carrier of last resort obligations in 2024, and legislative efforts to relax the mandate have repeatedly stalled. Having lost at the regulator and in the statehouse, AT&T is now trying the courts, arguing that a state cannot force it to maintain a network the federal government is actively encouraging it to retire.
The lawsuit is not the only track. AT&T has also filed a Petition for Preemption and Declaratory Ruling at the FCC asking the Commission to override California’s carrier of last resort and related requirements directly. That petition has drawn formal comments from policy groups and public pushback inside California, where opponents have urged the FCC to stay out of the state’s landline dispute. Whether the end of California’s copper protections arrives through a courtroom or through a Commission ruling, AT&T is now pursuing both routes at once.
The message to enterprise customers is unambiguous: the nation’s largest copper operator is spending legal fees on two fronts to accelerate the shutdown in the single most protective state in the country. AT&T has already stopped accepting new copper orders across large portions of its footprint and has committed to retiring the large majority of its copper network by 2029.
July 2026: The Approvals Start Landing
The first two weeks of July brought the clearest signal yet that the state level brake is gone. Trade press reported that the FCC approved AT&T’s copper retirement plans in California, moving the shutdown in the state from a legal argument to an administrative reality. In the same window, AT&T asked the FCC to approve copper retirement in roughly 600 additional locations across its footprint, one of the largest single expansions of the retirement pipeline to date.
Under the FCC’s March 5, 2026 order streamlining copper retirement, applications like these move through the process faster and with fewer opportunities for delay than at any point in the history of the transition. Retirement at this scale is no longer announced years in advance and litigated location by location. It is filed in batches and granted on a schedule.
If the copper era can be shut down in California, over the objections of the state’s own regulator, no state’s regulatory posture should be treated as a reason to delay migration planning.
The FCC Moves Against State and Local Barriers
The deregulatory push extends beyond retirement approvals. On June 25, 2026, the Commission adopted a Notice of Proposed Rulemaking titled Build America: Eliminating Barriers to Wireline Deployments (WC Docket No. 25-253, FCC 26-40, released June 26, 2026).
The proposal targets the state and local approval process that modern wireline infrastructure must clear before it can be built. Specifically, the FCC proposes to:
- Set firm deadlines for state and local governments to act on wireline authorization requests, so applications cannot sit in review indefinitely.
- Establish a standard for the fees states and localities can charge for right of way access, invoking Section 253 of the Communications Act, which prohibits requirements that effectively block the provision of telecommunications service.
- Restrict in kind contribution demands that function as hidden costs on deployment.
To be precise about scope: this rulemaking is about accelerating the buildout of replacement infrastructure, primarily fiber and IP based networks, rather than ordering copper retired. But the Commission’s own framing removes any doubt about intent. The NPRM describes the goal as enabling America’s transition to high speed connections and IP based voice services, and away from slower copper based services. Faster approvals for the new network shorten the life of the old one.
Taken together, the federal posture is now consistent end to end: streamline copper retirement itself, approve the retirement applications as they arrive, preempt the state rules that force copper to stay on, and clear the local barriers slowing what replaces it.
What This Means If You Still Run POTS Lines
The strategic error to avoid is treating regulatory friction as a project timeline. Some organizations, particularly those with California, New York, or other strong oversight state footprints, have deferred POTS migration on the theory that state processes would keep lines alive for years. That theory did not survive the first two weeks of July.
Three practical implications follow.
- State by state timelines are converging. Enterprises with multi state footprints should plan one national migration program rather than waiting on jurisdiction specific outcomes. A California site may have looked safe in 2024. As of this month, it is in the retirement pipeline like everywhere else.
- Price protection is not coming. None of the current federal activity restores price regulation on legacy business lines. Monthly POTS costs will keep climbing for as long as you hold the lines, and the lines will not outlast the proceedings by much.
- Life safety systems need the longest runway. Fire alarm communicators, elevator phones, and emergency call boxes carry code compliance requirements that make rushed cutovers risky. These should be first in the migration sequence, not last, because they are the systems a surprise retirement notice hurts most.
The Bottom Line
A carrier fighting a state in court and at the FCC to shut its own network down, a federal regulator approving those shutdown plans and proposing to override the barriers to what replaces them: these are not isolated headlines. They are the same story. The legal architecture that kept copper available is being taken apart deliberately, from multiple directions, and faster than most migration plans assume.
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