Is National Grid down in Japan?
Checks passingin Japan, measured from Tokyo
Our Tokyo probe last checked National Grid at Nov 5, 2026, 6:04 PM UTC and read checks passing.
Over the last 24 hours we completed 59 checks from Tokyo and 59 answered cleanly, 100.00% availability.
Of the 3 other regions we check National Grid from, all 3 read checks passing right now.
Email me the next time we see National Grid go down
What our Tokyo probe measured
Last checked Nov 5, 2026, 6:04 PM UTC.
National Grid from Tokyo over the last 30 days
Over the last 30 days, National Grid answered our Tokyo probe in 14 ms on average, and 1 check in 20 took longer than 19 ms.
Ranked by average response time across the 4 cities we check National Grid from, Tokyo 1st; Tokyo was fastest at 14 ms and San Jose slowest at 68 ms.
From Tokyo we ran 185 checks of National Grid in 4 days, and 169 answered cleanly: 91.35% availability.
1 of the 4 days had at least one failed check. The weakest was Nov 2 (UTC), at 36.00% across 25 checks.
In Tokyo local time (GMT+9), National Grid was slowest around 3 PM, at 53 ms on average over the last 14 days, and quickest around 4 AM, at 11 ms.
| Day (UTC) | Checks | Availability | Average response |
|---|---|---|---|
| Thu, Nov 5 | 44 | 100.00% | 12 ms |
| Wed, Nov 4 | 57 | 100.00% | 17 ms |
| Tue, Nov 3 | 59 | 100.00% | 14 ms |
| Mon, Nov 2 | 25 | 36.00% | 13 ms |
National Grid outages measured from Japan
Our Tokyo probe measured no confirmed National Grid outage in the last 90 days.
How the other regions read right now
Of the 3 other regions we check National Grid from, all 3 read checks passing right now.
| Probe city | Right now | Last 24h |
|---|---|---|
| Ashburn | Checks passing | 100.00% of 140 checks |
| San Jose | Checks passing | 100.00% of 107 checks |
| Frankfurt | Checks passing | 100.00% of 97 checks |
Other countries we check National Grid from
How we measured this
Japan readings on this page come from RealUptime's own Tokyo probe against National Grid's public endpoints. They are not user reports, and they are not National Grid's own status page.
See National Grid's full check readings, the 90-day history by region, or the outage tracker methodology.
Japan readings here are taken from that country and show the time of the last one, but National Grid has not yet accumulated enough continuous history for us to publish this page to search engines.
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