October 29, 2021, was the beginning of the 1 121 day time frame in which att.org underwent 12 uptime tests. Testing proves att.org's operability 12 times from total attempts, including on March 28, 2024, when a 200 status code was received. As of November 23, 2024, every inspection of att.org indicated that there were no offline periods. According to replies obtained, no errors were encountered in responses as of November 23, 2024. Against an average of 1.316 seconds, the response from att.org was 0.984 seconds on March 28, 2024.