AT&T customers across Fresno and Kern counties woke up Tuesday to dead cell phones after a wireless outage knocked out service overnight, with the carrier notifying some subscribers around 2 a.m. that their network connection had gone dark. Engineers spent the morning working to restore service, and AT&T's outage map pointed to a restoration target of around 1:30 p.m.
Outage Hits Heart of the Central Valley
The disruption affected wireless customers throughout Fresno County and Kern County, leaving residents unable to make calls or use data for hours, according to KMPH. The station reported that AT&T engineers were actively working to bring service back online, and that the company's own outage tracker showed an expected fix time of roughly 1:30 in the afternoon. Customers were directed to AT&T's online outage map to check for updates as the situation developed.
It's not the first hiccup for AT&T's network. WFAA reported that the carrier went back online after a major outage. Whether that incident shares a common cause with Tuesday's outage has not been established.
Bill Credits Possible Under AT&T Guarantee
Affected customers may see automatic account credits for their eligible downtime, per AT&T. Those credits fall under the AT&T Guarantee program, which the carrier launched in January 2025 to promise eligible wireless customers a full day's bill credit when an outage caused by an incident impacting multiple cell towers lasts 60 minutes or longer, according to PCMag. The credits are designed to apply automatically rather than requiring customers to file a claim.
The overnight blackout also arrives against a backdrop of heightened state scrutiny over wireless reliability in California. Under Senate Bill 670, telecommunications providers must notify the California Governor's Office of Emergency Services within 60 minutes of discovering a qualifying community isolation outage, subject to specified thresholds, according to the California Governor's Office of Emergency Services. Separately, Senate Bill 341 requires carriers to maintain public, real-time online outage maps reflecting community isolation outages, which explains the tracking tool AT&T customers were pointed toward Tuesday morning.
State Regulators Eyeing Wireless Standards
California regulators have been moving to tighten oversight of mobile carriers more broadly. In February 2026, the California Public Utilities Commission opened rulemaking proceeding R.26-02-017 to consider applying General Order 133-E service quality standards, mandatory repair timeframes, and customer credit rules directly to wireless carriers, according to the University of San Diego Consumer Protection Policy Center. The push comes as FCC data cited in California regulatory proceedings shows extended mobile wireless outages lasting longer than 96 hours in the state jumped from 31 to 254 incidents from 2018 to 2021.
The Central Valley disruption also follows a much larger precedent. A nationwide AT&T network failure on February 22, 2024, disrupted service for at least 12 hours across all 50 states, affecting more than 125 million devices and blocking over 92 million voice calls, including 25,000 attempts to dial 911, according to Light Reading. An investigation by the FCC's Public Safety and Homeland Security Bureau later concluded that failure stemmed from an employee misconfiguring a single network element without adequate peer review or testing, per Urgent Communications.
Grid Shutdowns Add Pressure on Local Towers
The discussion of Central Valley cell infrastructure also includes Public Safety Power Shutoff events. It remains unclear whether Tuesday's outage was connected to any power shutoff activity in the region.
During major network disruptions, AT&T is contractually required to prioritize restoring FirstNet, the nationwide public safety broadband network, ahead of commercial traffic, though federal regulators have previously cited the carrier for failing to notify public safety agencies promptly during past outages, per Urgent Communications. Hoodline previously covered a nationwide AT&T and Cricket Wireless collapse that blocked 911 access. For now, Central Valley customers are being told to watch AT&T's outage map for updates, and eligible customers may receive an automatic credit on their account.
