California Fights AT&T Copper Network Shutdown

The AT&T copper network shutdown has sparked a fierce regulatory battle in California. State regulators accuse the telecommunications giant of lying to the Federal Communications Commission. It's a bid to decommission its traditional landline infrastructure. The state of California and the California Public Utilities Commission filed a joint submission on June 15, directly challenging the carrier's claims regarding regulatory hurdles and the viability of wireless alternatives. But the state claims the company has spent years falsely asserting that local rules prevent it from upgrading its infrastructure, using this narrative to force a transition to less reliable wireless services.

This dispute intensified after the carrier sued California over its refusal to let the company stop providing phone service to potential customers in its wireline territory. Alongside the lawsuit, the company petitioned the federal government to declare that California cannot enforce its service rules. That petition is a big deal. It would allow the carrier to stop providing service to about 199,000 phone customers. But state officials argue they've never blocked upgrades to fiber, and they refuse to let the company abandon its service obligations without ensuring customers have access to an equal or better alternative.

The fight over the copper regulations

Here's the debate's core: how the carrier describes state rules to federal regulators. The company told the federal government that California regulations freeze fragile, expensive, and aging copper lines in time for the benefit of prior generations. But it's a different story in another filing. There, the company asserted that the state forces it to continue offering Plain Old Telephone Service throughout its entire territory, a demand it clearly can't easily avoid.

California regulators push back on this framing. They point to a 2008 decision where the state commission explicitly declined to adopt rules that would prevent phone companies from replacing copper lines with fiber. State officials noted that such restrictive rules would discourage and delay fiber systems from being built, running contrary to the state legislative goal of bringing affordable, high quality communication services to all residents. The state insists it wants fiber upgrades, not a complete abandonment of wired service.

But there is a catch.

They want to replace copper lines with wireless service. But state regulators argue that wireless service isn't an adequate replacement for wired phone service, so they're standing firm on that position even though it only applies where installing fiber wouldn't be profitable.

Wireless alternatives fail indoor testing

The carrier leans on its LTE-based Advanced Phone service to argue that mobile networks can replace traditional landlines. But California officials disagree. They say outdoor coverage maps don't prove a signal can penetrate walls. It claims customers in affected areas are served by at least one mobile provider, though that assertion is being challenged by state regulators who question the reliability of those maps for real-world indoor use.

State regulators noted that the coverage maps have limitations, such as showing outdoor coverage only.:

• The National Broadband Map displays broadband availability, not voice coverage.
• The mobile LTE coverage map depicts coverage a customer can expect when outdoors and stationary.
• The map is not meant to reflect where service is available when a user is indoors.
• Obstructions like buildings and thick walls routinely block or degrade wireless signals.

The state pointed to a disclaimer on the carrier's own website. It's right there. The company's public map shows approximate outdoor coverage and explicitly warns customers that actual coverage may vary, is not guaranteed, and is subject to change without notice. But regulators argue a service with no indoor quality guarantee can't pass federal adequacy tests.

The financial burden on rural households

Switching from a traditional landline to a mobile-based alternative is not just a technical challenge. It is also a financial one. California officials expressed deep concern that the carrier's proposed alternative, Phone-Advanced, could end up costing vulnerable consumers significantly more money than their current plans.

Higher costs for basic service

Phone-Advanced is a voice-over-IP service. It demands either a strong cellular signal or a separate broadband connection to function at all. But in rural and low-income areas where cellular signals are weak, residents would have to purchase a separate internet service plan just to make their phone work. That's expensive. This requirement makes the wireless alternative far more costly than the traditional basic service landline.

Loss of critical state discounts

The state also noted that the company's applications fail to clarify whether the new wireless service supports state assistance programs. It's unclear. So we don't know if the service will work with the California Lifeline program, which provides phone discounts for low-income households, or the California Relay Service, which is critical for deaf and hard-of-hearing residents.

Safety risks and 911 reliability

The state is raising the alarm over emergency services beyond just costs. Traditional copper lines carry their own electrical power, so they continue to work during electrical blackouts, a fact that highlights their reliability in a crisis. But wireless systems and internet-based phones don't have this inherent advantage. That's a critical weakness.

A service should not be considered an adequate replacement for the wireline services AT&T now seeks to retire if it costs substantially more than the existing service; requires additional equipment purchases; depends on additional, customer-supplied broadband; fails during commercial power outages without customer-provided backup power; is incompatible with assistive technologies; provides inferior indoor coverage; or results in diminished 911 functionality or reliability.

The state argues these barriers directly undermine the federal goal of universal service. So here's the nightmare scenario: if a wildfire or storm knocks out power, a customer without a battery backup would lose their connection to 911, and that vulnerability is unacceptable to state disaster coordinators. It's a fatal gap.

Regulators urge federal caution

The company claims it has already received relief from Carrier of Last Resort obligations in 20 of the 21 states where it operates wireline territories. These rules require phone companies to offer landline service to any potential customer in their territory. California is the major holdout.

The state commission rejected the company's request to end its landline obligations in 2024. So the company sued the state. It alleges that California forces it to spend 1 billion dollars each year to maintain a century-old network that almost no one uses. But while that lawsuit moves through the court system, the federal government could act much faster under its current leadership, and under Chairman Brendan Carr, federal rules have made it easier for carriers to retire copper networks, asserting that federal authority can preempt state rules. It's a fast move.

California regulators are asking the feds to slow down. They want these applications removed from the streamlined approval process so the serious issues regarding indoor coverage, pricing, and emergency safety can be fully investigated. But if the federal government pushes through an approval, California could ultimately sue the FCC.