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Judge Denies AT&T's Bid to Halt California's Basic Phone Service Rule

A federal judge has denied AT&T's request to temporarily stop California from enforcing rules that require the company to offer basic phone service to new customers. The ruling allows the state to continue its 'Carrier of Last Resort' mandate.

20 July 2026
Judge Denies AT&T's Bid to Halt California's Basic Phone Service Rule

A federal judge last week rejected AT&T's attempt to halt California's mandate requiring the company to provide basic wireline telephone service to any new customer within its territory. The decision by US District Judge Linda Lopez means the state can continue enforcing its Carrier of Last Resort (COLR) rules while litigation proceeds.

AT&T had sued California in May, seeking to overturn these COLR rules. The telecommunications giant requested a preliminary injunction, arguing that the state's regulations were preempted by a Federal Communications Commission (FCC) order. AT&T contended that federal law should supersede the state's requirements.

In denying the injunction, Judge Lopez found that AT&T had not demonstrated a sufficient likelihood of success on the merits of its claim. The case is being heard in the US District Court for the Southern District of California. This legal challenge touches on the ongoing relevance of traditional landline services, especially in ensuring universal access in the face of evolving communication technologies.

The ruling requires AT&T to continue offering basic telephone service to new customers in California as mandated by state law, pending the final outcome of the lawsuit.

Original source: arstechnica.com