Vonage: Japan SMS - Planned Maintenance affecting NTT Japan
Affected components: Global Connectivity - SMS APACSMS APAC
Timeline of updates
- scheduled
On 29th Oct 2026 between 19:00 UTC and 20:00 UTC, the operator NTT Japan will be performing a maintenance on their SMS platform.
During this time, SMS delivery to and from NTT Docomo subscribers may occasionally experience a delay.
If you have any questions, please contact api.support.vonage.com
- in progress
Scheduled maintenance is currently in progress. We will provide updates as necessary.
- completed
The scheduled maintenance has been completed.
Changes Rewindex caught on this incident
- Incident updated: Japan SMS - Planned Maintenance affecting NTT Japan
- Incident updated: Japan SMS - Planned Maintenance affecting NTT Japan
Archive proof
Rewindex commits each version of an incident it captures to a daily checkpoint, chains it to the day before, and has the checkpoint timestamped by FreeTSA and DigiCert. That proves these records existed by then and have not been changed since, by anyone, Rewindex included.
How the archive is checked, and what it cannot prove.
First version captured
In the 2026-10-17 checkpoint, timestamped by FreeTSA and DigiCert on . Record hash
1fcb4fe4cecea258…Version 2 captured
In the 2026-10-29 checkpoint, timestamped by FreeTSA and DigiCert on . Record hash
761ef1778d16c591…Version 3 captured
In the 2026-10-29 checkpoint, timestamped by FreeTSA and DigiCert on . Record hash
7d28335b55833149…
Impact, status and times are the vendor’s own, as last archived. View on stspg.io (opens in new tab).
Cite this
Maintenance posted by Vonage, started 2026-10-15 10:19 UTC, resolved after 14 d, 3 update(s); edited after publishing.
- Title
- Japan SMS - Planned Maintenance affecting NTT Japan
- Vendor
- Vonage
- Date
- URL
- https://rewindex.com/company/vonage/incidents/12r6szsp9jjf
Vonage profileRecent Vonage incidentsAll outages on October 15, 2026Vonage in October 2026MarkdownJSON