Is Microsoft 365 down in the US?
Checks passingin the US, measured from Ashburn, San Jose, and Chicago
All 3 of our probes in the US, in Ashburn, San Jose, and Chicago, read checks passing when they last checked Microsoft 365 at Nov 5, 2026, 2:26 PM UTC.
Over the last 24 hours we completed 1361 checks from Ashburn, San Jose, and Chicago and 1358 answered cleanly, 99.77% availability.
Of the 7 other regions we check Microsoft 365 from, all 7 read checks passing right now.
Email me the next time we see Microsoft 365 go down
What our Ashburn, San Jose, and Chicago probes measured
Last checked Nov 5, 2026, 2:26 PM UTC.
Microsoft 365 from Ashburn, San Jose, and Chicago over the last 30 days
Over the last 30 days, Microsoft 365 answered our Ashburn probe in 499 ms on average, and 1 check in 20 took longer than 823 ms.
Over the last 30 days, Microsoft 365 answered our San Jose probe in 575 ms on average, and 1 check in 20 took longer than 968 ms.
Over the last 30 days, Microsoft 365 answered our Chicago probe in 583 ms on average, and 1 check in 20 took longer than 1,167 ms.
Ranked by average response time across the 10 cities we check Microsoft 365 from, Ashburn 3rd, San Jose 4th, Chicago 6th; Frankfurt was fastest at 325 ms and Sydney slowest at 1,163 ms.
From Ashburn, San Jose, and Chicago we ran 50,780 checks of Microsoft 365 in 30 days, and 50,767 answered cleanly: 99.97% availability.
8 of the 30 days had at least one failed check. The weakest was Nov 4 (UTC), at 99.77% across 1,344 checks.
In Ashburn local time (EST), Microsoft 365 was slowest around 9 PM, at 691 ms on average over the last 14 days, and quickest around 10 AM, at 497 ms.
| Day (UTC) | Checks | Availability | Average response |
|---|---|---|---|
| Thu, Nov 5 | 797 | 100.00% | 694 ms |
| Wed, Nov 4 | 1,344 | 99.77% | 647 ms |
| Tue, Nov 3 | 1,316 | 100.00% | 671 ms |
| Mon, Nov 2 | 1,613 | 100.00% | 656 ms |
| Sun, Nov 1 | 1,794 | 100.00% | 598 ms |
| Sat, Oct 31 | 1,796 | 100.00% | 602 ms |
| Fri, Oct 30 | 1,795 | 100.00% | 616 ms |
| Thu, Oct 29 | 1,791 | 99.94% | 615 ms |
| Wed, Oct 28 | 1,794 | 99.94% | 593 ms |
| Tue, Oct 27 | 1,792 | 99.94% | 611 ms |
| Mon, Oct 26 | 1,795 | 99.83% | 668 ms |
| Sun, Oct 25 | 1,794 | 99.88% | 626 ms |
| Sat, Oct 24 | 1,798 | 100.00% | 628 ms |
| Fri, Oct 23 | 1,800 | 100.00% | 621 ms |
Microsoft 365 outages measured from the US
Our Ashburn, San Jose, and Chicago probes measured no confirmed Microsoft 365 outage in the last 90 days.
How the other regions read right now
Of the 7 other regions we check Microsoft 365 from, all 7 read checks passing right now.
| Probe city | Right now | Last 24h |
|---|---|---|
| Frankfurt | Checks passing | 100.00% of 386 checks |
| Tokyo | Checks passing | 100.00% of 240 checks |
| Toronto | Checks passing | 100.00% of 357 checks |
| London | Checks passing | 100.00% of 356 checks |
| Singapore | Checks passing | 100.00% of 354 checks |
| Sydney | Checks passing | 100.00% of 349 checks |
| São Paulo | Checks passing | 100.00% of 354 checks |
Other countries we check Microsoft 365 from
How we measured this
The US readings on this page come from RealUptime's own Ashburn, San Jose, and Chicago probes against Microsoft 365's public endpoints. They are not user reports, and they are not Microsoft 365's own status page.
See Microsoft 365's full check readings, the 90-day history by region, or the outage tracker methodology.
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