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…