Vonage: Japan SMS - Delivery degradation affecting NTT Docomo network
Timeline of updates
- resolved
Please be informed that SMS delivery degradation was observed between 22:30 UTC on 24 Jan and 00:30 UTC on 25 Jan towards NTT Docomo Network. It has recovered. This did not impact the domestic registration traffic. Please contact support@api.vonage.com if you have any questions.
From Vonage’s published incident history: for incidents before Rewindex began polling this status page, only the final update text is available.
Archive proof
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This incident predates live tracking (October 17, 2026). It came from the vendor’s own published history, which is not covered by checkpoints.
Impact, status and times are the vendor’s own, as last archived. View on vonageapi.statuspage.io (opens in new tab).
Cite this
Status incident (vendor impact label: none) posted by Vonage, started 2026-01-25 00:30 UTC, resolved after 0 min, 1 update(s).
- Title
- Japan SMS - Delivery degradation affecting NTT Docomo network
- Vendor
- Vonage
- Date
- URL
- https://rewindex.com/company/vonage/incidents/8rl0s5hl221m
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