Between 15-11-2018 03:00 UTC and 15-11-2018 11:00 UTC (19:00 - 03:00 PT), AT&T will be performing maintenance on their servers. During this time, some SMS messages sent to AT&T mobile devices may be delayed or not received.
Posted Nov 14, 2018 - 12:54 PST
This scheduled maintenance affected: SecureAuth Cloud Services (SMS Service - US1, SMS Service - US2).