The United States telecom customers did experience cellphone outages but people were misled to believe that it was a major DDoS attack.
It was also found that T-Mobile was the only mobile carrier reporting major downtime. T-Mobile CEO Mike Sievert stated that T-Mobile experienced the voice and text issue on June 14. The irregular intervention impacted customers in the United States, and it was an I.P. traffic-related issue that persisted throughout the day. They resolved the problem in the early hours of June 16. T-Mobile President of Technology Neville Ray said that their teams had continuously worked to fix the problems after the data services were available.
Real-time status and outage information website, Downdetector, received about 113,900 reports that T-Mobile was down in the United States. Later, the users had begun reporting issues with AT&T, Verizon, and other smaller operators in smaller numbers (3,861 and 8,619). The relative volume of reports by other operators shows that a significant outage was only visible in T-Mobile's network.