AT&T Sues California to Stop Offering Traditional Landline Phone Service

AT&T is suing California to be released from its obligation to provide traditional landline phone service. The Silicon Review reports on the telecom giant's argument that the mandate is obsolete in the wireless era.

AT&T has filed a federal lawsuit against the California Public Utilities Commission seeking to be released from its legal obligation to provide traditional landline phone service across the state. The telecom giant argues that the requirement, which dates back to the era of monopoly telephone service, is obsolete in a world where 97 percent of California households have wireless service.

The landline phone service mandate requires AT&T to maintain copper wire networks in areas where it is the designated carrier of last resort. Maintaining these networks costs the company approximately $450 million annually while serving fewer than 200,000 customers who have not switched to wireless or internet-based calling.

The telecom industry news comes as other states consider similar legislation. Texas and Florida have already passed laws releasing incumbent carriers from landline obligations, while Michigan and Ohio are considering bills. The California lawsuit is being closely watched as a bellwether for the 18 states that still require traditional landline service.

AT&T argues that the mandate forces it to maintain two parallel networks: modern fiber and wireless networks that are profitable, and legacy copper networks that operate at a loss. The company says it cannot shut down copper networks without CPUC approval, and the commission has denied previous requests citing rural access concerns.

The CPUC has defended the mandate, arguing that landline service remains a critical safety net for rural residents, the elderly, and households in areas with poor wireless coverage. The commission also noted that during the 2025 California wildfires and the 2024 Pacific Palisades fire, landlines remained functional when cell towers failed.

California Attorney General Rob Bonta has indicated his office will defend the CPUC's authority. A ruling is not expected until early 2027.

By the third quarter of 2027, AT&T anticipates completing negotiations with remaining landline customers to transition them to wireless home phone service or fiber-based voice over IP. The company has offered subsidized wireless devices to landline-only households and has established a dedicated support team for elderly customers who are uncomfortable with new technology.

The Silicon Review's analysis indicates that the AT&T lawsuit represents the final chapter of the landline era. The question is not whether landlines will disappear but how to manage the transition for the small population that still relies on them. California's decision will set a precedent for the rest of the country.

Q: Why is AT&T suing California over landline phone service?
A: AT&T is seeking to be released from its legal obligation to provide traditional landline service, arguing the mandate is obsolete in an era when 97 percent of California households have wireless service.

Q: How much does AT&T spend annually to maintain copper wire landline networks?
A: Maintaining these legacy networks costs AT&T approximately $450 million annually while serving fewer than 200,000 customers who have not switched to wireless or internet-based calling.

Q: Which states have already passed laws releasing carriers from landline obligations?
A: Texas and Florida have already passed laws releasing incumbent carriers from landline obligations, while Michigan and Ohio are considering similar bills.

Q: Why does the California Public Utilities Commission want to keep landline service?
A: The CPUC argues that landline service remains a critical safety net for rural residents, the elderly, and households in areas with poor wireless coverage. During recent wildfires, landlines remained functional when cell towers failed.

Q: What will AT&T do if it wins the lawsuit?
A: AT&T anticipates transitioning remaining landline customers to wireless home phone service or fiber-based voice over IP, offering subsidized wireless devices and dedicated support for elderly customers.

Q: When is a ruling expected in the AT&T lawsuit against California?
A: A ruling is not expected until early 2027.