Verkkomany at&t customers were left without cellphone service thursday thanks to a widespread outage that began in the early morning and lasted until. Verkkotens of thousands of at&t customers across the country found themselves without cellular service this morning. This caused disruptions to 911. Verkkohere’s what to know if you are having problems with your phone service. When did the outage start? At&t had more than 58,000 outages around. Verkkoat&t’s network suffered widespread outages across the country thursday morning with cellular service and internet down, according to the tracking. Verkkopossible causes of the outages included everything from software update errors, problems in the core network, to cyberattacks, experts said while the.