An AT&T DS3 (circuit that feeds 20-some T1s) is down in DC, causing some of our customer T1s to be down. Customers who have multiple T1s are up because we spread multiple T1s over different circuits, but single-T1 customers who are fed by this DS3 have been down since 7:34 AM.
We’ve contacted all affected customers by phone and will post updates here. AT&T sees the problem and is working to resolve it.
10:45 AM update: AT&T reports that this is part of a much larger outage. No estimate on resolution time yet.
10:55 AM Update: the problem was resolved at 10:51 AM and all customer T1s are back up.