Region-by-region timeline
When each monitored region started failing and when it recovered, per RealUptime's own probes. A region not listed here never failed during this incident.
US-East4 min
Failing from Sep 3, 2026, 7:32 PM UTC, recovered Sep 3, 2026, 7:37 PM UTC
US-West2 min
Failing from Sep 3, 2026, 7:31 PM UTC, recovered Sep 3, 2026, 7:33 PM UTC
Asia-Pacific10 min
Failing from Sep 3, 2026, 7:35 PM UTC, recovered Sep 3, 2026, 7:45 PM UTC
US-Central8 min
Failing from Sep 3, 2026, 7:31 PM UTC, recovered Sep 3, 2026, 7:39 PM UTC
UK8 min
Failing from Sep 3, 2026, 7:30 PM UTC, recovered Sep 3, 2026, 7:38 PM UTC
Southeast Asia3 min
Failing from Sep 3, 2026, 7:32 PM UTC, recovered Sep 3, 2026, 7:35 PM UTC
Australia7 min
Failing from Sep 3, 2026, 7:29 PM UTC, recovered Sep 3, 2026, 7:37 PM UTC
South America25 min
Failing from Sep 3, 2026, 7:11 PM UTC, recovered Sep 3, 2026, 7:36 PM UTC
What failed, by surface
Anthropic exposes more than one surface we probe separately. This breaks the same incident down by which surface failed, in which region, and when.
Web
South America: failing from Sep 3, 2026, 7:11 PM UTC, recovered Sep 3, 2026, 7:36 PM UTC
API
US-East: failing from Sep 3, 2026, 7:32 PM UTC, recovered Sep 3, 2026, 7:37 PM UTCUS-West: failing from Sep 3, 2026, 7:31 PM UTC, recovered Sep 3, 2026, 7:33 PM UTCAsia-Pacific: failing from Sep 3, 2026, 7:35 PM UTC, recovered Sep 3, 2026, 7:45 PM UTCUS-Central: failing from Sep 3, 2026, 7:31 PM UTC, recovered Sep 3, 2026, 7:39 PM UTCUK: failing from Sep 3, 2026, 7:30 PM UTC, recovered Sep 3, 2026, 7:38 PM UTCSoutheast Asia: failing from Sep 3, 2026, 7:32 PM UTC, recovered Sep 3, 2026, 7:35 PM UTCAustralia: failing from Sep 3, 2026, 7:29 PM UTC, recovered Sep 3, 2026, 7:37 PM UTCSouth America: failing from Sep 3, 2026, 7:31 PM UTC, recovered Sep 3, 2026, 7:36 PM UTC
How this was measured
This record comes only from RealUptime's own scheduled probes against Anthropic's public, unauthenticated endpoints, run from 10 named regions. It is never built from user reports or from Anthropic's own status page, and it does not change once this incident closes: this page is the permanent record, not a live view.
See Anthropic's full evidence record or read the methodology.